Planning Commission Agenda Packet 09242024
CITY OF MENDOTA HEIGHTS
PLANNING COMMISSION REGULAR MEETING AGENDA
September 24, 2024 at 7:00 PM
Mendota Heights City Hall, 1101 Victoria Curve, Mendota Heights
1. Call to Order
2. Roll Call
3. Approval of Minutes
a. Approve Minutes from the August 27, 2024 Planning Commission Meeting
4. Public Hearings
a. CASE No. 2024-17 MRCCA Permit and Amended CUP Application of Xcel Energy
for a Mississippi River Corridor Critical Area (MRCCA) Permit and amended
Conditional Use Permit (CUP) at the property located at 800 Sibley Memorial
Highway.
5. New and Unfinished Business
6. Updates/Staff Comments
7. Adjourn
Auxiliary aids for persons with disabilities are available upon request at least 120 hours in
advance. If a notice of less than 120 hours is received, the City of Mendota Heights will make
every attempt to provide the aid. However, this may not be possible on short notice. Please
contact City Hall at 651.452.1850 with requests.
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August 27, 2024 Mendota Heights Planning Commission Meeting Page 1 of 7
CITY OF MENDOTA HEIGHTS
DAKOTA COUNTY, MINNESOTA
DRAFT PLANNING COMMISSION MINUTES
AUGUST 27, 2024
The regular meeting of the Mendota Heights Planning Commission was held on Tuesday, August
27, 2024 in the Council Chambers at City Hall, 1101 Victoria Curve at 7:00 P.M.
The following Commissioners were present: Acting Chair Patrick Corbett, Commissioners Patrick
Corbett, Cindy Johnson, Brian Petschel, Jason Stone, and Andrew Katz. Those absent: Chair Litton
Field and Commissioner Brian Udell.
Approval of Agenda
The agenda was approved as submitted.
Approval of July 23, 2024 Minutes
COMMISSIONER PETSCHEL MOVED, SECONDED BY COMMISSIONER KATZ TO
APPROVE THE MINUTES OF JULY 23, 2024.
AYES: 5
NAYS: 0
Hearings
A) PLANNING CASE 2024-18
SOUTHVIEW DESIGN, 643 POND VIEW DRIVE – WETLANDS PERMIT
Community Development Manager Sarah Madden explained that the applicant is seeking a
Wetlands Permit to authorize construction of a new deck structure and landscaping/hardscaping
improvements on the property located at 643 Pond View Drive. A portion of the property is located
within the Wetlands District, which encompasses wetlands and water resource related areas and
the adjacent land within 100 feet of the normal high water markers of these water resources. The
proposed improvements are located at the edge of the Wetlands District boundary, approximately
95.5 feet from the edge of the adjacent Copperfield Pond.
Hearing notices were published and mailed to all properties within 350-ft. of the site; no comments
or objections to this request were received.
Community Development Manager Sarah Madden provided a planning staff report and a
presentation on this planning item to the Commission (which is available for viewing through the
City’s website).
Staff recommended approval of this application based on the findings and with conditions.
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August 27, 2024 Mendota Heights Planning Commission Meeting Page 2 of 7
Acting Chair Corbett referenced the suggested tree protection and asked for more details on what
prompted that addition.
Community Development Manager Sarah Madden commented that she opted to include that based
on current policy discussions, but noted that is not a current requirement of City Code and therefore
would be optional for the Commission to include.
Alison Landmark, Southview Design, commented that their goal is to be surgical in the planning
and construction for this project because of the adjacent wetland and natural area that takes up a
large portion of the backyard. She noted that a portion of the property is totally excluded from the
scope of work and the deck footprint would not go further than the current deck footprint.
Rory Dubin, property owner, commented that they worked with this team on their front yard
project last year and are excited to continue. He stated that they do not have any issues with
protection of the tree as suggested as they are keeping the tree.
Acting Chair Corbett opened the public hearing.
Seeing no one coming forward wishing to speak, Acting Chair Corbett asked for a motion to close
the public hearing.
COMMISSIONER STONE MOVED, SECONDED BY COMMISSIONER KATZ, TO CLOSE
THE PUBLIC HEARING.
AYES: 5
NAYS: 0
COMMISSIONER PETSCHEL MOVED, SECONDED BY COMMISSIONER STONE TO
RECOMMEND APPROVAL OF THE WETLANDS PERMIT TO SOUTHVIEW DESIGN AND
FOR THE PROPERTY LOCATED AT 643 POND VIEW DRIVE, WHICH WOULD
AUTHORIZE THE PERMITTING AND CONSTRUCTION OF THE NEW DECK AND
ASSOCIATED LANDSCAPING AND HARDSCAPING IMPROVEMENTS, BASED ON THE
FINDINGS-OF-FACT AND SUBJECT TO THE FOLLOWING CONDITIONS:
1. ALL WORK AND IMPROVEMENTS NOTED ON THE PLANS APPENDED TO THIS
PLANNING REPORT FOR CASE NO. 2024-18 SHALL BE THE ONLY APPROVED
WORK ALLOWED UNDER THIS WETLANDS PERMIT. IF ADDITIONAL
CONSTRUCTION WORK IN REAS UP TO 100-FEET FROM THE POND EDGE IS
NEEDED, EXCLUDING THE PLANTING OF TREES AND VEGETATION, THE
OWNER MUST CONTACT CITY STAFF PRIOR TO COMMENCING ANY WORK,
AND REPAIR AND REPLANT ANY DISTURBED AREAS WITH SUITABLE
PLANTINGS AND MATERIALS, PER DIRECTION OF THE CITY’S NATURAL
RESOURCES COORDINATOR.
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August 27, 2024 Mendota Heights Planning Commission Meeting Page 3 of 7
2. THE NEW STRUCTURE AND SITE IMPROVEMENTS SHALL COMPLY WITH ALL
APPLICABLE STANDARDS AND CONDITIONS NOTED UNDER TITLE 12,
CHAPTER 2, WETLANDS SYSTEMS OF CITY CODE.
3. THE OWNERS SHALL CONTINUE TO MAINTAIN A 25’ WIDE VEGETATIVE
BUFFER (NO DISTURBANCE) FROM THE ADJACENT POND EDGE, AS
OUTLINED ON THE DRAINAGE EASEMENT DEDICATED ON THE PLAT OF THE
PROPERTY.
4. NO ADDITIONAL GRADING OR OTHER LAND DISTURBANCE SHALL OCCUR
WITHIN 25 FEET FROM THE EDGE OF THE ADJACENT POND, EXCEPT FOR THE
REMOVAL OF DISEASED TREES, INSTALLATION OF EROSION CONTROL
MEASURES (IF NEEDED) OR FOR THE PLANTINGS OF ANY NEW SEED
MIXTURES OR LANDSCAPING MATERIALS, AND ONLY WITH CITY
APPROVALS.
5. FULL EROSION/SEDIMENTATION MEASURES SHALL BE INSTALLED PRIOR
TO COMMENCEMENT OF WORK AND MAINTAINED THROUGHOUT THE
DURATION OF THE CONSTRUCTION PROJECT. A DOUBLE ROW OF SILT
FENCE/PERIMETER CONTROL IS REQUIRED, WITH J-HOOK ON BOTH SIDES
OF THE PROPERTY. TREE PROTECTION AND EROSION BARRIERS SHALL BE
PLACED AND MAINTAINED ALONG THE OUTER EDGES OF THE PROJECT
WORK AREA AND REMAIN IN PLACE UNTIL ALL DISTURBED AREAS HAVE
BEEN RESTORED.
6. ANY GRADING AND/OR CONSTRUCTION ACTIVITY RELATED TO THE
DEVELOPMENT OF THIS LOT SHALL COMPLY WITH ALL APPLICABLE
FEDERAL, STATE, AND LOCAL REGULATIONS AND CODES, AS WELL AS IN
COMPLINACE WITH THE CITY’S LAND DISTURBANCE GUIDEANCE
DOCUMENT.
7. BEST EFFORTS WILL BE MADE BY THE CONTRACTOR(S) TO “COME CLEAN,
LEAVE CLEAN” DURING THE COURSE OF CONSTRUCTION ON THE SUBJECT
PROPERTY, AND ENSURE NEW GROUND MULCH OR PLANT MATERIALS ARE
FREE OF ANY INVASIVE SPECIES.
8. PRIOR TO THE RELEASE OF ANY ESCROW PAYMENT, ALL DISTURBED
AREAS IN AND AROUND THE PROJECT SITE SHALL BE RESTORED AND HAVE
AN ESTABLISHED, PROTECTED AND PERMANENT GROUND COVER
IMMEIDATELY AFTER THE PROJECT IS COMPLETED.
9. A BUILDING PERMIT MUST BE APPROVED PRIOR TO THE COMMENCEMENT
OF ANY CONSTRUCTION WORK ON THE PROPOSAL. CONSTRUCTION WORK
SHALL OCCUR ONLY BETWEEN THE HOURS OF 7:00 A.M. AND 8:00 P.M.
WEEKDAYS; AND 9:00 A.M. TO 5:00 P.M. WEEKENDS.
Further discussion: Commissioner Katz commented that he is pleased to see the language about
tree protection and that the applicant agreed. He stated that he would support similar language
when applicable going forward.
Commissioner Johnson commented that it is a common construction practice to protect the drip
line of the tree and therefore also agrees that protection is helpful when someone wants to save a
tree.
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August 27, 2024 Mendota Heights Planning Commission Meeting Page 4 of 7
Acting Chair Corbett stated that while he agrees, he was just unsure if that should be a condition
or whether it is better as a typical construction process.
AYES: 5
NAYS: 0
Acting Chair Corbett advised the City Council would consider this application at its September 3,
2024 meeting.
New and Unfinished Business
A) ZONING CODE UPDATE
Planning Consultant Jennifer Haskamp presented the Final Draft of the Zoning Code Update. The
City has prepared proposed amendments to Title 12: Zoning to adopt a revised zoning title and
corresponding Zoning Map. This item was tabled from the July 23, 2024, regular Commission
meeting, where the public hearing was opened, held, and closed. The Planning Commission met
at a Worksession on July 30, 2024, to continue to discuss the comments received at the July 23rd
meeting.
Hearing notices were published and mailed to all properties within 350-ft. of the site; no comments
or objections to this request were received. The Commission is asked to reopen the public hearing
and continue its discussion of this item.
Planning Consultant Jennifer Haskamp provided a planning staff report and a presentation on this
planning item to the Commission (which is available for viewing through the City’s website).
Staff recommended adoption of Zoning Code updates as presented.
Commissioner Katz thanked staff for continuing to go through the drafts and answer questions,
acknowledging that this has been a long process.
Acting Chair Corbett reopened the public hearing.
Tim Lawrence, Alltech Engineering, referenced the proposed rezoning which would rezone a lot
of industrial property to general business. He commented that it would seem that a number of
current uses would not be included in the allowed table of uses for general business, using the
example of metal fabrication.
Commissioner Petschel commented that he specifically mentioned that use as something they
wanted to allow and therefore if it is not listed, it should be. He believed that would fall under the
definition of manufacturing.
Mr. Lawrence asked the purpose of rezoning the parcels.
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August 27, 2024 Mendota Heights Planning Commission Meeting Page 5 of 7
Commissioner Petschel commented that those properties are not currently be rezoned. He stated
that there is only one parcel in the industrial district being reguided as general business, and
identified that parcel.
Planning Consultant Jennifer Haskamp identified the stretch of property proposed to be rezoned.
She explained that this is a follow up from the Comprehensive Plan guiding which had an intent
to better match the existing uses of the property.
Mr. Lawrence stated that he is seeking to understand the purpose of the change as his business is
similar to many in that area. He stated that while their business is not engaging in manufacturing,
they support industrial businesses and does not want the other businesses to be impacted by the
change in zoning.
Commissioner Stone asked how they could ensure that this would not impact the current
businesses that are there.
Community Development Manager Sarah Madden stated that the map itself has looked like this
for some time because of the Comprehensive Plan guiding and cannot be separated from the
Zoning Code update at this point. She stated that the table of uses could be updated.
Planning Consultant Jennifer Haskamp stated that the existing businesses are protected as they
would predate the changes to the Code and would be legal nonconforming uses. She stated that
there was discussion that the existing businesses better match B-1 and if that is not the case, that
whole section could be recommended to revert back to industrial. She stated that uses could also
be added to the allowed uses if desired.
Commissioner Stone asked the number of uses of that nature in that area.
Public Works Director Ryan Ruzek commented that there may be one, noting that block may be
better served as industrial and east of Pilot Knob Road he is not familiar with industrial-type
properties. He stated that the map could therefore be modified, or if the intent is to have more
general business in the future, the map could be left as proposed.
Acting Chair Corbett commented that they would not want to adversely impact businesses or
properties.
Commissioner Petschel stated that perhaps manufacturing is added as a conditional use within
general business.
Planning Consultant Jennifer Haskamp reviewed the changes that could be made to allow those
uses conditionally within general business.
Commissioner Johnson suggested they look at the other B-1 zoning areas because that change
would then open it up in those areas.
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August 27, 2024 Mendota Heights Planning Commission Meeting Page 6 of 7
Commissioner Petschel commented that manufacturing is already allowed, noting that there is just
a specification on certain methods that are not allowed.
Planning Consultant Jennifer Haskamp reviewed some of the allowed industrial activities that
would not be allowed within general business. She stated that if those uses seem appropriate for
this strip of property, then she would suggest changing that area back to industrial rather than
adjusting the table.
Community Development Manager Sarah Madden commented that as suggested by Public Works
Director Ryan Ruzek, they could adjust the portion of the block west of Pilot Knob back to
industrial.
Commissioner Stone asked the opinion of the planning consultant.
Planning Consultant Jennifer Haskamp commented that if those uses, she reviewed feel consistent
with what is going on, and what they would like in the future, she would recommend the map
change. She noted that it has been two years since the last review and discussion related to the
map change.
Commissioner Petschel stated that he would be comfortable going that route, as in reviewing the
current uses, that seems to be more appropriate as industrial.
Planning Consultant Jennifer Haskamp commented that would still be consistent with the
Comprehensive Plan.
The Commission thanked Mr. Lawrence for his input.
Seeing no one further coming forward wishing to speak, Acting Chair Corbett asked for a motion
to close the public hearing.
COMMISSIONER STONE MOVED, SECONDED BY COMMISSIONER KATZ, TO CLOSE
THE PUBLIC HEARING.
AYES: 5
NAYS: 0
COMMISSIONER STONE MOVED, SECONDED BY COMMISSIONER PETSCHEL, TO
RECOMMEND APPROVAL OF THE PROPOSED AMENDMENTS TO TITLE 12: ZONING
TO ADOPT THE REVISED ZONING TITLE DRAFTED WITHIN THE CITY OF MENDOTA
HEIGHTS ZONING CODE UPDATE PROJECT AND CORRESPONDING AMENDMENTS
TO THE ZONING MAP TO MODIFY DISTRICT BOUNDARIES AND ZONING DISTRICT
TITLES, WITH THE ADDITIONAL RECOMMENDATION FOR THE MAP CHANGE TO
REZONE WEST OF PILOT KNOB, SOUTH OF MENDOTA HEIGHTS ROAD, FROM B-1 TO
INDUSTRIAL.
AYES: 5
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August 27, 2024 Mendota Heights Planning Commission Meeting Page 7 of 7
NAYS: 0
Community Development Manager Sarah Madden advised the City Council would consider this
application at its September 17, 2024 meeting.
Staff Announcements / Updates
Community Development Manager Sarah Madden stated that along with the Zoning Code updates,
the City Council will also be considering short-term rentals, as that may be something of interest
to the Commission.
Adjournment
COMMISSIONER KATZ MOVED, SECONDED BY COMMISSIONER STONE, TO
ADJOURN THE MEETING AT 8:01 P.M.
AYES: 5
NAYS: 0
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PLANNING STAFF REPORT
DATE:September 24, 2024
TO:Planning Commission
FROM:Sarah Madden, Community Development Manager
SUBJECT:Planning Case No. 2024-17 - MRCCA PERMIT/AMENDED CUP
APPLICANT:Xcel Energy
PROPERTY ADDRESS:800 Sibley Memorial Highway
ZONING/GUIDED:B-1A Business Park / LB- Limited Business
ACTION DEADLINE:November 11, 2024
INTRODUCTION
Xcel Energy (Northern States Power Company) is seeking approval of a Miss. River Corridor Critical
Area (MRCCA) Permit and Conditional Use Permit, in order to implement a number of
improvements to the Sibley Propane Plant facility, located at 800 Sibley Memorial Highway.
This item is being presented under a duly noticed public hearing process. A notice of hearing was
published in the Pioneer Press; and notice letters were mailed to all owners within 350-feet of the
subject property, including the cities of St. Paul and Lilydale. The city has not received any
objection or comments related to this application as of the submission of this report.
BACKGROUND
The subject property is generally known or identified
as the Sibley Propane Gas Plant facility, which is
located south and east of State Trunk Highway 13,
and abuts Valley Park to the south, commercial/office
developments to the north, and Park Place and
Summit residential neighborhoods to the east (refer
to GIS image – right). The plant property contains two
parcels comprising of approximately 25 total acres,
which are all owned and operated by Xcel Energy
(formerly Northern States Power Company).
According to Xcel representatives, the plant use has
existed in its current location since the mid-1950’s.
The site is fairly open with security style fencing
around its perimeter, and contains a number of
support structures and buildings that house
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4a.
Planning Case #2024-17 (Xcel – MRCCA Permit) Page 2
office/work spaces, maintenance areas, valve/mixing rooms, and includes 37 horizontal laying
propane tanks on the back side of the plant site (referred to as the “Tank Farm”)
The plant is used primarily to feed propane into the local natural gas line systems during periodic
“spikes” or peak demand events, typically experienced in winter heating season months and only
as needed.
In 2016, the City approved a Conditional Use Permit and Critical Area Permit related to
improvements to a structure on the Sibley Plant property. ‘Essential Services’ is a listed Conditional
Use in the B-1A zoning district, and prior to that application the site did not have a record of
Conditional Use Permit approval for the use, due to the age and historical use of the property.
In August 2021, Xcel received an Administrative Critical Area Permit, in order to complete some
immediate and mandatory infrastructure improvements to this plant. These upgrades included
replacing some outdated and worn out valves, pipes and equipment with new modern materials,
equipment, pipes, valves and miscellaneous safety measures. Due to the importance of providing
continued natural gas service to the community and region, and ensuring that gas is available to
local customers when the cold/winter season comes, these equipment upgrades and the work
proposed by Xcel were deemed essential to the general public, and the council elected to expedite
this work under an Administrative Critical Area Permit approval.
In May 2022, the City reviewed a full MRCCA Permit application for additional improvements to
the tank facility, including replacing the propane loading facilities, improvements to the
stormwater management on site, and a new fire suppression system. The fire suppression system
included a new 12-inch watermain extension coming from the water main line underneath
Farmdale Road to the east. At that time, drainage issues on site were also proposed to be
addressed through a re-grading of the site, a new detention basin, and a network of concrete
stormwater trenches within the tank field.
Xcel is now completing other elements and improvements needed for this tank facility, and are
requesting official consideration of this work under a new MRCCA Permit, and which work includes
the following:
1. Mound soil around the existing propane tanks, as part of the fire suppression system for
the facility;
2. Install a six-ft tall retaining wall at the south side of the existing pump manifold station;
3. Install a storm shelter on a 12-ft x 24-ft concrete pad foundation within the fenced
compound; and
4. Expand the compound on the east side to allow for fire truck access along the east
perimeter of the fenced compound, by adding additional fencing.
According to the Xcel’s narrative, the proposed work will bring the site into compliance with
National Fire Prevention Association (NFPA) codes and design standards.- The maintenance and
refurbishment of the facility is ongoing, with work taking place in 2024 that was reviewed as part
of the prior MRCCA Permit, such as the installation of the water-main and ongoing permitting for
the pipe bridge and pump house.
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Planning Case #2024-17 (Xcel – MRCCA Permit) Page 3
The review and approval also includes an update to their existing Conditional Use Permit (CUP),
approved in 2016, which noted that future site alterations would need to be processed as an
amendment to the CUP as well as any critical area permits needed.
ANALYSIS – MRCCA PERMIT
A majority of the plant site is situated in the MRCCA Overlay boundary, and is located within the
SR-Separated by River District.
Along the westerly boundary of the site is where the mapped bluffs are located, identified as the
cross-hatched areas – and the related 20-foot buffer or bluff impact zone (BIZ), as noted by
orange-hatched areas (see MRCCA map image- above).
Properties located in the SR District are characterized or governed by the following principles:
Description. The SR district is characterized by its physical and visual distance from the
Mississippi River. The district includes land separated from the river by distance,
topography, development, or a transportation corridor. The land in this district is not
readily visible from the Mississippi River.
Management Purpose. The SR district provides flexibility in managing development
without negatively affecting the key resources and features of the river corridor.
Minimizing negative impacts to primary conservation areas and minimizing erosion and
the flow of untreated storm water into the river are priorities in the district. In addition,
providing public access to and public views of the river, and restoring natural vegetation
in riparian areas and tree canopy are also priorities in the district.
Per Section 12-3-8. E., Public utilities must comply with the following standards:
1. High-voltage transmission lines, wind energy conversion systems greater than five (5)
megawatts, and pipelines are regulated according to Minnesota Statutes, chapter 216E,
216F, and 216G respectively; and
2. If overhead placement is necessary, utility facility crossings must minimize the visibility of
the facility from the river and follow other existing right of ways as much as practicable.
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Planning Case #2024-17 (Xcel – MRCCA Permit) Page 4
3. The appearance of structures must be as compatible as practicable with the surrounding
area in a natural state with regard to height and width, materials used, and color.
4. Wireless communication facilities must comply with Section 12-3-5.B.6.
There are no new high-voltage line, wind energy systems, pipelines or wireless communication
systems proposed under this project.
Pursuant to new City Code Section 12-3-12, no building permit, zoning approval, or subdivision
approval shall be issued for any action or development located in an area covered by this chapter
until a site plan has been prepared and approved in accordance with the provisions of this chapter.
The new ordinance also provides for new rules and standards for new developments, which may
include Land Alteration activities and Vegetation Management (removals and replanting).
The entirety of the work will take place within the fenced compound of the Sibley Plant which has
been maintained as an asphalt and gravel surface, and contains no vegetated areas. No work is
proposed in any Primary Conservation Areas (PCA’s) on the property and all existing vegetation
outside the site compound will remain. The only expansion of the site compound is the additional
fencing which is proposed on the east side of the compound to widen the area and provide fire
truck access. Site work will consist of bringing in the soil to bury the above-ground storage tanks
within the mounding system. There are no major building improvements proposed under this
project, except for a small- storm shelter, which will be a prefabricated building placed on a 12-ft
x 24-ft foundation. The building will be a shell for the purposes of providing employees and
contractors working on the site with an Emergency Preparedness shelter for severe weather
events. This is proposed to be located north of the tank farm and existing structures on the site,
and west of the pipe bridge.
The primary focus of the project is dedicated to mounding soil around the propane tanks as part
of the fire suppression system for the Sibley Plant (see grading plan image below). This mounding
of soil will be used instead of an overhead sprinkler system. The 6-ft tall retaining wall is proposed
to limit the amount of grading on the site and maintain the footprint of the existing plant, keeping
area of disturbance contained.
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Planning Case #2024-17 (Xcel – MRCCA Permit) Page 5
The proposed 6-ft retaining wall is just located just north of the tank farm and centered roughly
between the two tank zones, as highlighted in the image below (bottom left). The change in
fencing is located south east of the southernmost tank area, and adds 83-ft of new fencing at a
diagonal angle, allowing an approximately 25-ft in width to facilitate fire truck access. The new
line of fencing is illustrated in the image below (bottom right)
Land Alteration Standards and Stormwater Management
MRCCA Ordinance Section 12-3-10 provides for specific allowances and standards related to
Land Alteration and Stormwater Management. The purpose of this section is to establish
standards that protect water quality from pollutant loadings of sediment, nutrients, bacteria, and
other contaminants, and maintain the stability of bluffs, shorelines, and other areas prone to
erosion.
Land Alteration:
Within the bluff impact zone (BIZ), land alteration is prohibited, except for the following, which are
allowed only by permit.
a) Erosion control consistent with a plan approved by the City and consistent with Section 12-3-10.F.
b) The minimum necessary for development that is allowed as an exception under Section 12-3-15;
and
c) Repair and maintenance of existing buildings and facilities.
Grading around the tank farm will be significant, due to the mounding proposed as fire
suppression within the tank farm. The 2022 MRCCA approval evaluated changes in containment
of stormwater runoff, and the applicant prepared a Storm Water Pollution Prevention (SWPP) plan,
which is included as an attachment to this report. Due to the level of land disturbance, a SWPP
review is necessary, and the applicants will likely need a National Pollutant Discharge Elimination
System (NPDES) permit from the Minnesota Pollution Control Agency as well.
Stormwater Management:
In the bluff impact zone, stormwater management facilities are prohibited, except by permit if:
a. There are no alternatives for storm water treatment outside the bluff impact zone on the
subject site;
b. The site generating runoff is designed so that the amount of runoff reaching the bluff impact
zone is reduced to the greatest extent practicable;
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Planning Case #2024-17 (Xcel – MRCCA Permit) Page 6
c. The construction and operation of the facility does not affect slope stability on the subject
property or adjacent properties; and
d. Mitigation based on the best available engineering and geological practices is required and
applied to eliminate or minimize the risk of slope failure.
In all other areas, storm water runoff must be directed away from the bluff impact zones or unstable
areas.
As part of the previous 2022 MRCCA Permit approval, Xcel intended to construct a new
stormwater detention basin to provide treatment of runoff coming off the tank farm area. The
basin was to be placed in the southeast corner of the tank farm and not be within any BIZ or bluff
setback. The grading and mounding of the tank farm modifies this plan. A detention pond is still
located southeast of the tank farm, however the exact location has shifted closer to the boundary
of the tanks, and the drainage path now circulates south around the tanks to connect to the culvert
system and riprap located west of the tank farm. The basin is meant to pre-treat stormwater runoff,
but also help reduce runoff from reaching the bluff and BIZ on the west; which will help with slope
stability that has been needed in the westerly slope area. There are no changes to the riprap
drainage channel within the Bluff Impact Zone that was illustrated and included in the 2022
approval.
Conditions of Land Alteration Permit Approval
No permit for land alteration shall be approved unless:
1. Temporary and permanent erosion and sediment control measures to retain sediment onsite
are consistent with the best management practices in the Minnesota Stormwater Manual, as
it may be amended or revised from time to time;
2. Natural site topography, and soil and vegetation conditions are used to control runoff and
reduce erosion and sedimentation;
3. Construction activity is phased when possible;
4. All erosion and sediment controls are installed before starting any land disturbance activity;
5. Erosion and sediment controls are maintained to ensure effective operation;
6. The proposed work is consistent with the vegetation standards in Section 12-3-9; and
7. Best management practices are used for protecting and enhancing ecological and water
resources as identified in Best Practices for Meeting DNR General Public Waters Work Permit
GP 2004-0001, as it may be amended or revised from time to time.
ANALYSIS – CUP
The 2016 Conditional Use Permit approval established the ‘Essential Services’ use as the zoning
use existing on the property, encompassing the service and delivery of the propane at the facility.
This current proposal does not modify the primary structures or essential services of the site, but
does encompass the addition of a small structure for a storm shelter for employees, and does
modify the grading and fire suppression associated with the essential service utility. The existing
approval included a condition that ‘future improvements on the subject property that expand,
alter, or otherwise change the existing use or site conditions in any manner shall require an
amendment to the conditional use permit, including a critical area permit if applicable.’ The
proposed improvements do constitute a change in the site conditions through the grading
improvements and mounding of the tank farm. No additional performance standards are noted
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Planning Case #2024-17 (Xcel – MRCCA Permit) Page 7
with the essential services use in City Code, apart from the applicable provisions for all Conditional
Use Permits within the City.
The City may grant a conditional use provided the proposed use demonstrates the following:
a) Use will not be detrimental to the health, safety or general welfare of the community,
b) Use will not cause serious traffic congestion nor hazards,
c) Use will not seriously depreciate surrounding property value, and
d) Use is in harmony with the general purpose and intent of this chapter and the comprehensive
plan.
The site is enclosed by a 10-foot-high, barbed-wire-topped, chain link security fence. As part of
Planning Case 1980-08, Northern States Power (NSP) was granted a conditional use permit to
relocate and extend portions of the fence. The existing use was also established on the subject
property prior to development of both abutting residential subdivisions to the site. Staff finds the
existing ‘essential services’ use to demonstrate the above requirements for Conditional Use
Permits. In addition, the existing use is compliant with the conditions required for approval of a
conditional use permit within the MRCCA.
As part of the review of a Conditional Use Permit within the MRCCA, the City must note in the
Findings of Fact that the use is consistent with the purpose of the MRCCA ordinance as outlined
below:
a. The extent, location, and intensity of the conditional or interim use will be in substantial
compliance with the MRCCA plan;
b. The conditional or interim use is consistent with the character and management purpose of
the MRCCA district in which it is located;
c. The conditional or interim use will not be detrimental to PCAs and PRCVs nor will it contribute
to negative incremental impacts to PCAs and PRCVs when considered in the context of past,
present, and reasonable future actions; and
d. The conditional or interim use will not negatively affect other resources identified in the City's
MRCCA plan, such as wetlands, river overlooks, and parks and open space.
The proposal does not impact any PCA’s on the property, and the proposed improvements are
consistent with the purpose of the MRCCA district in which it is located, and the provisions related
to public facilities and utilities as outlined in 12-3-8-E. The site is not visible from the river, and
the river is not visible from the site, and the tank area maintains its security and separation from
neighboring uses through the utilization of fencing and buffered by natural vegetation.
INTERAGENCY REVIEW
The city is required to give Minnesota Dept. of Natural Resources and National Park Service at
least 20-day notice of any new MRCCA Permit application request. These notices were emailed
directly to the appropriate staff; and a response from DNR was received indicating no comment
or issues with the proposed improvement work and project by Xcel; and received no response or
comment from NPS.
ALTERNATIVES
Page 15 of 68
Planning Case #2024-17 (Xcel – MRCCA Permit) Page 8
1. Approve the MRCCA Permit and amended Conditional Use Permit request to Xcel Energy and
for 800 Sibley Memorial Highway, which would allow site improvements including grading,
mounding of the tank farm for fire suppression, a new retaining wall, a realignment of the
perimeter fencing, a storm shelter foundation and structure, and updated stormwater
detention basin and stormwater routing; all based on the findings-of-fact that the proposed
project is compliant with the policies and standards of the MRCCA Ordinance and City Code,
and subject to certain conditions; or
2. Deny the MRCCA Permit request to Xcel Energy and for 800 Sibley Memorial Highway, based
on the recommendation the application and project does not meet certain policies and
standards of the MRCCA Ordinance and City Code, based on revised findings-of-facts
determined by the Planning Commission; or
3. Table the request; direct staff to work with the Applicants and allow more time to revise or
refine the plans submitted for review, and/or provide additional information for the Planning
Commission to further consider; staff will extend the application review period an additional
60 days, in compliance with MN STAT. 15.99.
STAFF RECOMMENDATION
Staff recommends approval of the proposed MRCCA Permit and amended Conditional Use Permit
request from Xcel Energy and for the property located at 800 Sibley Memorial Highway, with the
following conditions:
1. The new improvements and work described, illustrated and detailed on the “Sibley
Propane Plant” plans, dated 05/24/2024, and any other plans related to this project, shall
be the only work or improvements allowed and approved under this new MRCCA Permit.
2. The entire water/fire suppression system, both above and below ground must be
submitted to the State Fire Marshall for a Fire Suppression Permit, and copies provided to
the Mendota Heights Fire Department for review and record keeping.
3. Full erosion and sedimentation measures will be put in place prior to and during grading
and construction work activities.
4. All grading and construction activity will be in compliance with applicable federal, state,
and local regulations and codes, as well as in compliance with the City’s Land Disturbance
Guidance Document. The Applicants must submit and receive a SWPPP Permit and NPDES
Permit (if necessary) prior to start of any new construction work.
5. All work on site will only be performed between the hours of 7:00 AM and 8:00 PM Monday
through Friday; 9:00 AM to 5:00 PM weekends.
Page 16 of 68
Planning Case #2024-17 (Xcel – MRCCA Permit) Page 9
Attachments
1. Applicant Narrative Letter
2. Location Map – 800 Sibley Memorial Hwy
3. MRCCA Map
4. City Base Map w/ Utilities Shown
5. ESP Safety Shelter details
6. Sibley Propane Plant – Foundation Key Plan, dated 8/22/24
7. Sibley Propane Plant – Retaining Wall and Structural Details, dated 5/31/24
8. Sibley Propane Plant – Civil Grading Plan Set, dated 5/24/24
9. Sibley Phase II Fire Suppression, Stormwater Pollution Prevention Plan (SWPPP), dated
3/13/23
Page 17 of 68
Planning Case #2024-17 (Xcel – MRCCA Permit) Page 10
FINDINGS-OF-FACT FOR APPROVAL
Miss. River Corridor Critical Area Permit and amended Conditional Use Permit
for the
Xcel Energy Sibley Gas Plant Facility
800 Sibley Memorial Highway
The following Findings-of-Fact are made in support of approval of the proposed MRCCA Permit
request:
1. The proposed soil mounding around the existing propane tanks, drainage modifications
and improvements, retaining wall, fence realignment, storm shelter, and site sfire
suppression and safety improvements planned for by Xcel Energy on the subject property,
meets the general purpose and intent of the Mississippi River Corridor Critical Area
(MRCCA) District ordinances and standards.
2. The proposed work to construct these new drainage and grading alterations and fire
suppression safety improvements on the subject site are deemed minimally invasive;
necessary to help correct further damage or impacts to the adjacent natural environment;
provide better water quality with any stormwater runoff; provides for increased measures
to ensuring the health and safety of the general public, and are all reasonable and within
the spirit and intent established under the MRCCA Overlay District regulations.
3. The proposed work will not be detrimental to the health, safety or general welfare of the
community; should not cause any serious traffic congestion nor hazards; will not seriously
depreciate surrounding property value; and also is in harmony with the general purpose
and intent of the City Code and the Comprehensive Plan.
4. The overall construction of these site improvements will comply with all standards and
regulations of the MRCCA Ordinance and any related Zoning Ordinance, State Building
and Fire Codes, and other applicable ordinances; and represents a considerable investment
by the Applicants (Xcel Energy) to an important utility service feature in the community.
Page 18 of 68
414 Nicollet Mall, 414-06 Minneapolis, MN 55401 1-800-895-499 xcelenergy.com August 26, 2024 Sarah Madden Community Development Director City of Mendota Heights 1101 Victoria Circle Mendota Heights, MN 55118 Email: RE: Sibley Plant Safety Improvements Conditional Use Permit Amendment & MRCCA Permit Dear Sarah Madden, Please find this letter of intent and application materials for the MRCCA Permits and the Conditional Use Permit Amendment for the NSP (Xcel Energy) Sibley Gas Plant located at 800 Sibley Memorial Hwy with Parcel ID numbers of 270140075011, 270230002013, 270230002012, 271715102091, and 275660002081. The plant stores propane which can be inserted into the natural gas system during periods of peak demand in the winter. The plant has been in service since the 1950’s prior to the incorporation of the City of Mendota Heights. NSP is investing to enhance safety upgrades and improve plant operations. The primary improvements that we seek are: • Amend the existing CUP to mound soil around the existing propane tanks. The mounded soil will be part of the fire suppression system for the facility. The remaining components of the site plan will not change. Steps, walkways and retaining walls will be installed to allow for access to the tanks. • Install a six feet tall retaining wall at the south side of the existing pump manifold station within the facility in order to hold the mounded soil from the manifold station. • Install a storm shelter on a 12’ x 24’ concrete pad foundation within the fenced compound. • Expand the compound on the east side to allow for fire truck access along the east perimeter of the fenced compound by adding approximately 25 linear feet of fencing. The proposed work will bring the site into compliance with the National Fire Prevention Association (NFPA) codes and design standards. The entirety of the work will take place within the fenced compound of the Sibley Plant which has been maintained as an asphalt and gravel surface. Work will consist of hauling in soil to bury the above-ground storage tanks. This in combination with other devises and practices is part of the fire suppression system for the facility. The property is in the southeast quadrant of and adjacent to I-35E and US Hwy 13. The site is irregularly shaped and additionally abuts Lilydale Road and Farmdale Road. The property is in the Critical Area Overlay Zone and includes steep slopes to the south and west and forested land surrounding the facility. NSP purchased additional buffer land to the east to help screen the facility from adjacent development to the east. City parkland to the south and east provide additional screening and buffering. The site cannot be seen from the river, nor can the river be seen from the site. Page 19 of 68
414 Nicollet Mall, 414-06 Minneapolis, MN 55401 1-800-895-499 xcelenergy.com Mounding System: The mounding of soil around the propane tanks will be used as part of the fire suppression system for the Sibley Plant. The mounding of soil will be used instead of an overhead sprinkler system, which due to its complexity requires more rigorous maintenance program. No work will be done in the Primary Conservation Areas (PCA’s) located on the property. With the exception of increasing the fenced compound slightly on the east side, all work will be done within the fenced portion of the facility, all of which exists outside of any PCA. Retaining Wall: The proposed retaining wall will be constructed to limit the amount of grading on site. Without the retaining wall existing structures would require relocation and the area of disturbance would be increased, significantly increasing the footprint of the plant. The wall is six feet tall, one foot over the city’s five feet limit for retaining walls. Without a 6’ tall wall, the mounding system would not provide the fire suppression needed to meet the NFPA code. Storm Shelter Foundation: The storm shelter will consist of a prefabricated building that will be placed on a foundation. The storm shelter will consist of a shell building within which will be an Emergency Security Preparedness (ESP) Safety Shelter. This storm shelter will be essential in protecting Xcel Energy employees and contractors working on the site from severe weather events. MRCCA Permit: The mounding of soil over the above ground storage tanks, mitigates the fire risk on the site, keeping employees and contractors safe. Xcel Energy’s team of designers and engineers worked hard to limit the footprint of the proposed improvements to lessen any impacts on the risk of impacts to the river and its ecosystems will be minimal in completing these projects, as all vegetation will remain, no work will be performed in any PCA’s, and the site is staying fundamentally the same. Construction Timing: The maintenance and refurbishment of the facility is ongoing. Soil mounding will occur in spring of 2025. The proposed improvements are an essential component for the safe operation of the Sibley Plant and are a part of our commitment to provide safe and reliable natural gas to our customers and help ensure the safety of Xcel Energy employees, contractors, and the neighboring communities. Thank you for your consideration of our request to bring the Sibley Plant into compliance with the latest NFPA safety standards. The proposed improvements will minimally impact the natural environment and enhance the reliability and safety of the natural gas system in Mendota Heights and surrounding communities. Page 20 of 68
414 Nicollet Mall, 414-06 Minneapolis, MN 55401 1-800-895-499 xcelenergy.com Regards, Brian Sullivan Siting and Land Rights P: 612.330.5925 I C:612.366.0234 I F: 612.329.3096 Email: brian.e.sullivan@xcelenergy.com Page 21 of 68
414 Nicollet Mall, 414-06 Minneapolis, MN 55401 1-800-895-499 xcelenergy.com Page 22 of 68
414 Nicollet Mall, 414-06 Minneapolis, MN 55401 1-800-895-499 xcelenergy.com Page 23 of 68
414 Nicollet Mall, 414-06 Minneapolis, MN 55401 1-800-895-499 xcelenergy.com Page 24 of 68
414 Nicollet Mall, 414-06 Minneapolis, MN 55401 1-800-895-499 xcelenergy.com Page 25 of 68
414 Nicollet Mall, 414-06 Minneapolis, MN 55401 1-800-895-499 xcelenergy.com Page 26 of 68
XXcceel -GGaass PPlaanntt -880000 SSiibbleeyy MMeemm..HHwwyy..
Disclaimer:Map and parcel data are believed to be accurate,but accuracy is not guaranteed.
This is not a legal document and should not be substituted for a title search,appraisal,survey,yy or
for zoning verification.
Map Scale
11 iinncchh ==330000 ffeeeett
4/26/2022
Attachment 2
Page 27 of 68
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This imagery is copyrighted and licensed by Nearmap US Inc, which
retains ownership of the imagery. It is being provided by Dakota County
under the terms of that license. Under that license, Dakota County is
allowed to provide access to the “Offline Copy Add-On for Government”,
on which this image services is based, at 6-inch resolution, six months
after the capture date, provided the user acknowledges that the imagery
will be used in their normal course of business and must not be resold or
800 SIBLEY MEMORIAL HWY.
NSP / Xcel Energy Gas Plant
MRCCA MAP
City of
Mendota
Heights0250
SCALE IN FEET
Legend
Municipal Boundary
MRCCA Boundary
Bluff_Elem
18% and 75 Degree Bluffs
18% over 25 ft Bluffs
20 ft bluff buffer
75 Degree Bluffs
Date: 4/26/2022
Attachment 3
Page 28 of 68
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FARMDALE RDCHERRY HILL RDASPEN W AYThis imagery is copyrighted and licensed by Nearmap US Inc, which retains
ownership of the imagery. It is being provided by Dakota County under the
terms of that license. Under that license, Dakota County is allowed to
provide access to the “Offline Copy Add-On for Government”, on which this
image services is based, at 6-inch resolution, six months after the capture
date, provided the user acknowledges that the imagery will be used in their
normal course of business and must not be resold or distributed for the
City Base Map
Date: 4/26/2022
City of
Mendota
Heights0200
SCALE IN FEET
GIS Map Disclaimer:
This data is for informational purposes only and should not be substituted for a true title search, property appraisal, plat,
survey, or for zoning verification. The City of Mendota Heights assumes no legal responsibility for the information contained
in this data. The City of Mendota Heights, or any other entity from which data was obtained, assumes no liability for any errors
or omissions herein. If discrepancies are found, please contact the City of Mendota Heights.
Contact "Gopher State One Call" at 651-454-0002 for utility locations, 48 hours prior to any excavation.
Attachment 4
Page 29 of 68
Page 30 of 68
Page 31 of 68
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Page 34 of 68
PLANT NORTH
1.02°TRU
E
N
O
R
T
H
SERVICE CENTER:
CAD FILE NAME:
BY
DRAWINGREVISIONS
NO.DESCRIPTION DATE
DESIGNED BY:
APPROVED BY:
CHECKED BY:
DRAWN BY:
TYPE:
LOCATION:
DIVISION:CITY/COUNTY :IN SERVICE DATE:
HISTORY DATE
FLOC:
®
SIBLEY PROPANE PLANT
FOUNDATION KEY PLAN 41000
0B
D1_41000_Sibley Mounding.dwg
NORTHERN MENDOTA HEIGHTS / DAKOTA FACILITY
UNIT 00
GU-SPG
NORTHERN STATES POWER COMPANY
JMC 04/04/24
RSP 04/04/24
JG 05/24/24
RSP 05/31/24
0 ISSUED FOR CONSTRUCTION - RET. WALL JMC 05/31/24
0A ISSUED FOR BID JMC 07/22/24
0B ISSUED FOR PERMIT - STORM SHELTER MO 08/22/24
PROPOSED CONCRETE
EXISTING FENCE
EXISTING ABOVE GROUND PIPING & EQUIPMENT
EXISTING UNDER GROUND PIPING & EQUIPMENT
EXISTING STEEL/CONCRETE
X
LEGEND:
41001 41006 41011 41016 41021 41026 41030 41034
41002 41007 41012 41017 41022 41027 41031 41035
41003 41008 41013 41018 41023 41028 41032 41036
41004 41009 41014 41019 41024 41029 41033 41037
41038 41041 41044 41047 41050 41053
41039 41042 41045 41048 41051 41054
41040 41043 41046 41049 41052 41055
41005 41010 41015 41020 41025
PLANT COORDINATE 0,0
N 1022497.52'
E 2849480.46'
PROPOSED
STAIR & RAMP
PROPOSED
SIDEWALK, TYP.
PROPOSED
SUPPORT SLAB, TYP.
PROPOSED
STAIR
PROPOSED DRAINAGE
POND, SEE CIVIL
TANK BANK 360 TANK
BANK 350
TANK
BANK 340
TANK
BANK 310
PROPOSED
STAIR & RAMP
EXISTING PLC
EXISTING VAPORIZER
BLDG.
EXISTING NG SUPPLY
REG/METER
EXISTING PDC
EXISTING
TRANSFORMERS
EXISTING
TRUCK UNLOAD
EXISTING
TRUCK UNLOAD
EXISTING PLANT
ACCESS ROAD
EXISTING LPG
TRANSFER PUMPS
PROPOSED
STAIR
EXISTING PIPE
BRIDGE
EXISTING AIR
RECIEVER
EXISTING AIR
DRYERS
EXISTING
COMPRESSOR
BLDG
EXISTING WEG
COOLERS
EXISTING
BOILER BLDG
NOTES:
1. ALL COORDINATES BASED ON NAD83 MINNESOTA STATE PLANS, SOUTH ZONE.
2. SEE THE FOLLOWING FOR OTHER DISCIPLINE KEY PLANS: 4300 FOR CIVIL, 6100 FOR
MECHANICAL & PIPING, 7200 FOR CONDUIT, 7300 FOR ELECTRICAL, & 8000 FOR CONTROLS.
EXISTING EAST
PIPE BRIDGE
PROPOSED MOUNDING
GRADING, SEE CIVIL
EXISTING TANKS TO BE
BURIED, TYP.
FIRE WATER LINE
PROPOSED
STAIR
PROPOSED
RETAINING WALL
TANK
BANK 320
PROPOSED 12'x24'
STORM SHELTER
ENCLOSURE &
FOUNDATION
0B
Page 35 of 68
SERVICE CENTER:
CAD FILE NAME:
BY
DRAWINGREVISIONS
NO.DESCRIPTION DATE
DESIGNED BY:
APPROVED BY:
CHECKED BY:
DRAWN BY:
TYPE:
LOCATION:
DIVISION:CITY/COUNTY :IN SERVICE DATE:
HISTORY DATE
FLOC:
®
SIBLEY PROPANE PLANT
STRUCTURAL COVER / INDEX 40000
0
D1_40000_Sibley Mounding.dwg
NORTHERN MENDOTA HEIGHTS / DAKOTA FACILITY
UNIT 00
GU-SPG
NORTHERN STATES POWER COMPANY
JMC 04/04/24
RSP 04/04/24
JG 05/24/24
RSP 05/31/24
0 ISSUED FOR CONSTRUCTION - RET. WALL JMC 05/31/24
DRAWING REVISION FOR STRUCTURAL RETAINING WALL &
WATER LINE SUPPORTS ONLY. REMAINING STRUCTURAL
MOUNDING SCOPE TO BE ISSUED AT A LATER DATE.
STRUCTURAL COVER SHEET
DRAWING NUMBER REV TITLE DRAWING NUMBER REV TITLE
40000 0 STRUCTURAL COVER / INDEX 4700 0 STEEL DETAIL DIAGRAMS - PIPE BRIDGE ELEVATION
40010 0 STRUCTURAL NOTES 4701 0 STEEL DETAIL DIAGRAMS - PIPE BRIDGE TRUSS PLANS
40011 0 STRUCTURAL NOTES 4702 0 STEEL DETAIL DIAGRAMS - PIPE BRIDGE SECTIONS & DETAILS
41000 0 FOUNDATION KEY PLAN 4703 0 STEEL DETAIL DIAGRAMS - PIPE BRIDGE SECTIONS & DETAILS
41027 0 FOUNDATION PLAN 4704 1 STEEL DETAIL DIAGRAMS
4121 1 FOUNDATION PLAN - PIPE BRIDGE 4705 1 STEEL DETAIL DIAGRAMS
4122 1 FOUNDATION PLAN - VAPORIZER BUILDING 4706 1 STEEL DETAIL DIAGRAMS
4123 2 FOUNDATION PLAN - CABLE TRAY AND PIPE RACK 4707 1 STEEL DETAIL DIAGRAMS
4124 1
FOUNDATION PLAN - COMPRESSOR BUILDING AND PIPE
RACK 4708 1 STEEL DETAIL DIAGRAMS - CABLE TRAY SUPPORT SECTIONS & DETAILS
4125 1 FOUNDATION PLAN - BOILER BUILDING AND PIPE RACK 4709 0 STEEL DETAIL DIAGRAMS - CABLE TRAY SUPPORT SECTIONS & DETAILS
4126 1 FOUNDATION PLAN - EAST PIPE BRIDGE 4710 0 STEEL DETAIL DIAGRAMS - CABLE TRAY SUPPORT SECTIONS & DETAILS
4127 1 FOUNDATION PLAN - SLEEPER RACK 4711 1 STEEL DETAIL DIAGRAMS - PIPE SUPPORT SECTIONS & DETAILS
4128 1
FOUNDATION PLAN - SLEEPER RACK AND TRUCK
UNLOADING 4712 1 STEEL DETAIL DIAGRAMS - PIPE SUPPORT SECTIONS & DETAILS
4129 1 FOUNDATION PLAN - TRANSFER PUMP AREA 4713 1 STEEL DETAIL DIAGRAMS - EAST PIPE BRIDGE ELEVATION
42000 0 STRUCTURAL KEY PLAN 4714 1 STEEL DETAIL DIAGRAMS - EAST PIPE BRIDGE TRUSS PLANS
4101 0 STRUCTURAL PLAN - PIPE BRIDGE 4715 1 STEEL DETAIL DIAGRAMS - SECTIONS & DETAILS
4102 2 STRUCTURAL PLAN - VAPORIZER BUILDING 4716 1 STEEL DETAIL DIAGRAMS - SECTIONS & DETAILS
4103 2 STRUCTURAL PLAN - CABLE TRAY AND PIPE RACK 4717 1 STEEL DETAIL DIAGRAMS - SECTIONS & DETAILS
4104 1
STRUCTURAL PLAN - COMPRESSOR BUILDING AND PIPE
RACK 4718 1 STEEL DETAIL DIAGRAMS - TRUCK UNLOADING SKID SECTIONS & DETAILS
4104 1
STRUCTURAL PLAN - COMPRESSOR BUILDING AND PIPE
RACK 4719 1 STEEL DETAIL DIAGRAMS - PIPE SUPPORT SECTIONS & DETAILS
4105 1 STRUCTURAL PLAN - BOILER BUILDING AND PIPE RACK 4720 3 FOUNDATION DETAIL DIAGRAMS - PIPE BRIDGE SECTIONS & DETAILS
4106 1 STRUCTURAL PLAN - EAST PIPE BRIDGE 4721 0 FOUNDATION DETAIL DIAGRAMS - CONCRETE SECTIONS & DETAILS
4107 1 STRUCTURAL PLAN - SLEEPER RACK 4722 3 FOUNDATION DETAIL DIAGRAMS - CONCRETE SECTIONS & DETAILS
4108 1
STRUCTURAL PLAN - SLEEPER RACK AND TRUCK
UNLOADING 4723 0 FOUNDATION DETAIL DIAGRAMS - CABLE TRAY SECTIONS & DETAILS
4109 1 STRUCTURAL PLAN - TRANSFER PUMP AREA 4724 0 FOUNDATION DETAIL DIAGRAMS - CONCRETE SECTIONS & DETAILS
44001 0 FOUNDATION DETAILS - SLAB & SIDEWALK DETAILS 4725 0 FOUNDATION DETAIL DIAGRAMS - CONCRETE SECTIONS & DETAILS
44003 0 TYPICAL THRUST BLOCK DETAILL 4726 1 FOUNDATION DETAIL DIAGRAMS - CONCRETE SECTIONS & DETAILS
4727 0 PIPE SUPPORT SECTIONS & DETAILS
4728 0 PIPE SUPPORT SECTIONS & DETAILS
4729 0 PAD GAS COMPRESSOR PAD & PIPE SUPPORTS
48000 0 RETAINING WALL PLAN & ELEVATION
48001 0 RETAINING WALL SECTION
48002 0 RETAINING WALL SECTIONS & DETAILS
PROFESSIONAL ENGINEER
I hereby certify that this plan, specification, or
report was prepared by me or under my direct
supervision and that I am a duly Licensed
Professional Engineer under the Laws of the
state of Minnesota.
Signature:
Typed or Printed Name: Randy S. Paul
Date: License Number: 5663705/28/2024
Page 36 of 68
SERVICE CENTER:
CAD FILE NAME:
BY
DRAWINGREVISIONS
NO.DESCRIPTION DATE
DESIGNED BY:
APPROVED BY:
CHECKED BY:
DRAWN BY:
TYPE:
LOCATION:
DIVISION:CITY/COUNTY :IN SERVICE DATE:
HISTORY DATE
FLOC:
®
SIBLEY PROPANE PLANT
STRUCTURAL NOTES 40010
0
D1_40010_Sibley Mounding.dwg
NORTHERN MENDOTA HEIGHTS / DAKOTA FACILITY
UNIT 00
GU-SPG
NORTHERN STATES POWER COMPANY
JMC 02/27/24
RSP 02/27/24
JG 05/24/24
RSP 05/31/24
0 ISSUED FOR CONSTRUCTION - RET. WALL JMC 05/31/24
STRUCTURAL NOTES
A.DESIGN AND CONSTRUCTION
1.GENERAL SITE INFORMATION: DAKOTA COUNTY, MN (44.90244167, -93.1311555)
2.DESIGN IN ACCORDANCE WITH THE FOLLOWING CODES:
a.MINNESOTA BUILDING CODE 2020, INCORPORATING 2018 IBC
b.ASCE 7-16
c.A.C.I. 318-14
d.A.I.S.C. 360-16
3.RISK CATEGORY = IV
4.DESIGN LOADS:
a.LIVE LOADS:
I. PIPE RACK: PIPING LOADS PER PIPE STRESS
II. CABLE TRAY: 75 PLF
b.WIND LOADS:
I. BASIC WIND SPEED (3-SECOND GUST) = 121 MPH
II. EXPOSURE = C
c.SEISMIC DESIGN CRITERIA
I. SEISMIC IMPORTANCE FACTOR, I E = 1.5
II. SITE CLASS = D
III. MAPPED SPECTRAL RESPONSE ACCELERATIONS, SS=0.05, S1=0.03
IV. MAPPED SPECTRAL RESPONSE COEFFICIENTS, SDS=0.05, SD1=0.05
V. SEISMIC DESIGN CATEGORY (SDC) = A
d.LATERAL SOIL LOAD = 35 PCF EQUIV. FLUID PRESSURE
A.EARTHWORK AND FOUNDATION CONSTRUCTION
1.FOUNDATIONS SHALL BEAR ON UNDISTURBED, UNFROZEN SUBGRADE, AND ON COMPACTED ENGINEERED-FILL WHERE SPECIFIED ON PLANS.
2.SOIL ENGINEERING DESIGN PARAMETERS: PER SITE SPECIFIC SOIL REPORT NO. 00044.0011.0030 CONDUCTED BY CAMPOS EPC DATED SEPTEMBER 9, 2021
a.FROST DEPTH: 42 IN.
b.ALLOWABLE BEARING CAPACITY: 3,000 PSF (SHALLOW SPREAD FOOTINGS)
c.FOUNDATION SYSTEM: SHALLOW SPREAD FOOTINGS, DEEP FOUNDATIONS.
3.EXCAVATION AND BACKFILL:
a.ALL EXCAVATION AND GRADING WORK FOR FOUNDATIONS SHALL CONFORM TO THE SPECIFICATIONS HEREIN AND ALL LOCAL, COUNTY, STATE, AND FEDERAL
LAWS AND REGULATIONS. ENTIRE AREA AROUND EACH FOUNDATION MUST BE THOROUGHLY PROBED FOR UNDERGROUND PIPE, CONDUIT, HIGH PRESSURE
LINES, ETC. BEFORE ANY EXCAVATION BEGINS.
b.WHENEVER POSSIBLE, EXCAVATION FOR CONCRETE FOUNDATION SHALL BE NEATLY CUT TO THE EXACT SIZE SPECIFIED.
c.IF THE GROUND WATER LEVEL IS FOUND TO BE ABOVE THE BOTTOM OF THE FOUNDATION EXCAVATION, THE FOLLOWING PROCEDURE SHALL BE FOLLOWED:
I. EXCAVATE THE FOUNDATION 1' BELOW THE BOTTOM OF THE CONCRETE FOUNDATION AND 1' BEYOND THE FOUNDATION BASE ON EACH SIDE.
II. THE WATER SHALL BE REMOVED FROM THE EXCAVATED FOUNDATION. CONTRACTOR SHALL KEEP EXCAVATED FOUNDATION FREE OF WATER AT ALL
TIMES UNTIL THE BASE HAS BEEN PREPARED TO THE FINISHED ELEVATION OF THE FOUNDATION BASE.
III. PLACE WOVEN GEOTEXTILE FABRIC MIRAFI 600X OR EQUAL 1' BEYOND THE FOUNDATION BASE ON EACH SIDE.
IV. PLACE 12" OF CLASS II AGGREGATE BASE IN TWO SEPARATE 6" LIFTS, COMPACT TO 95% OF THE MAX DRY DENSITY PER ASTM D1557.
V. BEFORE PLACING THE FORMS, REBAR AND CONCRETE POUR, THE CONTRACTOR SHALL KEEP THE EXCAVATED FOUNDATION FREE OF WATER.
d.DURING AND UPON COMPLETION OF THE INSTALLATION OF ANY FOUNDATION, THE WORK SHALL BE INSPECTED AND APPROVED BY THE OWNER OR THEIR
REPRESENTATIVE BEFORE THE EXCAVATION IS BACKFILLED. AFTER SUCH APPROVAL, THE EXCAVATION, UNLESS REQUIRED TO BE LEFT OPEN FOR GOOD
CAUSE, SHALL BE PROMPTLY BACKFILLED IN A SATISFACTORY MANNER PROVIDED THE FOUNDATION HAS ATTAINED SUFFICIENT STRENGTH.
e.FORMS SHALL NOT BE STRIPPED UNTIL 3 DAYS AFTER THE POUR OR CONCRETE STRENGTH REACHES 75% F'C, WHICHEVER OCCURS LATER.
f.STRUCTURAL BACKFILL SHALL CONSIST OF GRANULAR NON-EXPANSIVE SAND, GRAVEL AND SAND-GRAVEL MIXTURES, WITH PLASTICITY INDEX BELOW 15,
WITH 100% LESS THAN 3/4" SIZE ROCK AND MAX. 10% PASSING NO. 200 SIEVE PER MN DOT CLASS 5 BASE MATERIAL REQUIREMENTS. IT SHALL BE PLACED IN
8" MAX. LIFTS. BACKFILL SHALL BE COMPACTED TO 95% M.D.D. PER ASTM D1557.
g.EXCAVATED SUBGRADE SHALL BE COMPACTED TO MINIMUM 95% OF MAXIMUM DRY DENSITY IN ACCORDANCE WITH ASTM D1557, PRIOR TO STRUCTURAL
OR COMMON BACKFILL. MINIMUM 1 (ONE) IN-SITU DENSITY TEST SHALL BE CONDUCTED PER CONCRETE STRUCTURE, UNLESS DEEMED OTHERWISE BY THE
FIELD GEOTECHNICAL PROFESSIONAL.
h.SUBGRADE CONDITIONS SHALL BE INSPECTED BY A GEOTECHNICAL ENGINEER PROR TO PLACEMENT OF ANY CONCRETE. STRUCTURAL FILL SHALL BE
INSPECTED AND TESTED.
B.DEMOLITION
1.CONTRACTOR SHALL FIELD-VERIFY ALL CONDITIONS AND DIMENSIONS (INCLUDING UTILITIES AND POSSIBLE PRESENCE OF HAZARDOUS MATERIALS) PRIOR TO
STARTING WORK AND SHALL NOTIFY THE ENGINEER OF ANY DISCREPANCIES OR ADDITIONAL WORK THAT MAY BE REQUIRED.
2.CONTRACTOR SHALL BE RESPONSIBLE FOR ALL SHORING, SHIELDING, TEMPORARY WALLS, WATER SPRAY, ETC., AS NECESSARY TO PROTECT EXISTING WORK TO
REMAIN, AND TO PREVENT THE SPREAD OF DUST AND DEBRIS.
3.CONTRACTOR SHALL BE RESPONSIBLE FOR ALL DAMAGE TO SURROUNDING STRUCTURES AND EQUIPMENT DUE TO DEMOLITION WORK. THIS INCLUDES
REQUIRED CLEANUP DUE TO SPREAD OF DUST AND DEBRIS. CONTRACTOR MAY WISH TO DOCUMENT CONDITION OF NEARBY STRUCTURES PRIOR TO
BEGINNING DEMOLITION AS A DEFENSE AGAINST DAMAGE CLAIMS.
4.MATERIAL NOTED TO BE SALVAGED SHALL BE REMOVED AND HANDLED SO AS TO PREVENT DAMAGE. ALL MATERIALS FROM DEMOLITION NOT NOTED TO BE
SALVAGED SHALL BE REMOVED FROM THE SITE AND DISPOSED OF IN A LEGAL MANNER BY THE CONTRACTOR.
5.CONTRACTOR SHALL BE RESPONSIBLE FOR THE SAFETY OF ALL WORKERS, TENANTS, AND THE PUBLIC DURING HIS WORK. BARRICADES, WARNING SIGNS,
TRAFFIC CONTROL, ETC. SHALL BE PROVIDED AND MAINTAINED AS REQUIRED.
D.CONCRETE AND GROUT (CAST-IN-PLACE)
1.CONCRETE MIX DESIGNS SHALL MEET THE FOLLOWING REQUIREMETS:
a.CONCRETE F'C = 3,000 PSI AFTER 7 DAYS, 4,500 PSI MIN. AFTER 28 DAYS. CEMENT TYPE II.
b.MAXIMUM SLUMP SHALL BE 4” (PLUS OR MINUS 1 INCH) BEFORE ADDITION OF SUPERPLASTICIZERS, OR ALL CONCRETE EXCEPT 6” TO 9” FOR DRILLED PIERS.
c.ALL CONCRETE EXCEPT USED FOR INTERIOR SLABS, SHALL BE AIR ENTRAINED TO 6% PLUS OR MINUS 1.5%. INTERIOR FLOOR CONCRETE SHALL NOT BE AIR
ENTRAINED.
d.WATER/CEMENT RATIO SHALL NOT EXCEED 0.45
e.WATER USED IN MIXING CONCRETE SHALL CONFORM TO ASTM C1602
f.ADMIXTURES SHALL NOT BE USED WITHOUT PRE-APPROVAL BY ENGINEER. ADMIXTURES CONTAINING CHLORIDES SHALL NOT BE USED.
g.MAXIMUM RATIO OF FLY-ASH TO TOTAL CEMENTITIOUS MATERIALS SHALL BE 0.15
h.AGGREGATES SHALL BE CRUSHED STONE CONFORMING TO ASTM C33
i.CONCRETE MIX DESIGNS SHALL BE SUBMITTED TO THE ENGINEER FOR REVIEW AND APPROVAL. CONTRACTOR SHALL NOT BEGIN CONCRETE INSTALLATION
UNTIL CONCRETE MIX DESIGNS HAVE BEEN APPROVED BY THE ENGINEER.
2.CONCRETE PROTECTION FOR REINFORCEMENT: CLEAR DISTANCE FROM FACE OF CONCRETE TO BAR SHALL BE AS FOLLOWS UNLESS NOTED OTHERWISE.
a.CONCRETE DEPOSITED AGAINST GROUND OR VOID FORM: 3”
b.CONCRETE SURFACES EXPOSED TO WEATHER OR IN CONTACT WITH GROUND AFTER REMOVAL OF FORMS: 1 1/2" FOR #5 BARS AND SMALLER, 2" FOR #6
THROUGH #18.
3.REINFORCING SHALL BE DEFORMED, INTERMEDIATE GRADE NEW BILLET STEEL CONFORMING TO ASTM A615, GRADE 60 FY = 60,000 PSI (EXCEPT
REINFORCEMENT TO BE WELDED SHALL BE ASTM A706). ALL WELDING OF REINFORCEMENT SHALL CONFORM TO THE STRUCTURAL WELDING CODES,
REINFORCING STEEL AWS D1.4, CURRENT EDITION.
4.REINFORCEMENT DETAILING REQUIREMENTS
a.ALL REINFORCING STEEL IN CONCRETE SHALL BE LAPPED IN ACCORDANCE WITH ACI STANDARD 318. WHERE BARS OF DIFFERENT SIZES ARE LAPPED, THE LAP
LENGTH SHALL BE BASED ON THE SMALLER BAR. WHERE BARS ARE SHOWN SPLICED, THEY MAY RUN CONTINUOUS AT CONTRACTOR'S OPTION.
b.REINFORCEMENT SHALL BE CONTINUOUS THROUGH CONSTRUCTION JOINTS UNLESS NOTED OTHERWISE.
c.PROVIDE BENT CORNER REBAR TO MATCH AND LAP WITH HORIZONTAL REBAR AT CORNERS AND INTERSECTIONS OF WALLS AND GRADE BEAMS.
d.SHOP DRAWINGS SHALL BE SUBMITTED TO THE ENGINEER FOR REVIEW AND APPROVAL. REBAR FABRICATION SHALL NOT BEGIN UNTIL SHOP DRAWINGS
HAVE BEEN APPROVED BY THE ENGINEER. ALL SPLICE LOCATIONS ARE SUBJECT TO ENGINEER'S APPROVAL. PLACE REBAR PER CRSI STANDARDS
e.ALL BARS AND DOWELS SHALL BE SUPPORTED AND WIRED IN PLACE. DOWELS SHALL BE WIRED IN PLACE, NOT PUSHED INTO FRESH CONCRETE. WELDED
WIRE REINFORCEMENT SHALL BE POSITIVELY SUPPORTED, NOT PULLED UP AFTER CONCRETE PLACEMENT. BAR SUPPORTS IN CONTACT WITH EXPOSED
SURFACES SHALL HAVE PLASTIC TIPS.
f.IF REINFORCING OR MESH IS FIELD CUT FOR SMALL OPENINGS, CONDUIT, ELECTRICAL BOXES, ETC. CUT REINFORCING SHALL BE REPLACED WITH AN
EQUIVALENT AREA OF STEEL. ALL SUCH BARS SHALL EXTEND 24" MINIMUM (OR MESH LAP 2") BEYOND CORNER OR EDGE OF OPENING IF NECESSARY.
REINFORCING SHALL BE BENT TO PROVIDE THIS MINIMUM EMBEDMENT. MAKE ALL BARS CONTINUOUS AROUND CORNERS.
5.REBAR NOTED TO BE DRILLED INTO CONCRETE AND SET WITH ADHESIVE TO USE HILTI ADHESIVE HIT-HY 200 V3 ADHESIVE “SAFE SET SYSTEM” AS
DOCUMENTED BY CURRENT ICC-ES REPORT ESR-4868. CONTRACTOR MAY SUBMIT ALTERNATE FOR APPROVAL WITH ALLOWABLE LOAD VALUES EQUAL TO OR
EXCEEDING THOSE FOR HILTI.
6.CONCRETE PLACEMENT REQUIREMENTS:
a.CONCRETE SHALL NOT BE PLACED ON FROZEN GROUND.
b.MECHANICALLY VIBRATE ALL CONCRETE WHEN PLACED.
c.ALL EXPOSED EDGES SHALL BE CHAMFERED 3/4" UNLESS NOTED OTHERWISE.
7.EXPANSION JOINT MATERIAL FOR EXPANSION OR ISOLATION JOINTS SHALL BE PREMOLDED, BITUMINOUS IMPREGNATED FIBERBOARD.CONFORMING TO
ASTM D994. JOINT THICKNESS SHALL BE 1/2" UNLESS NOTED OTHERWISE ON DESIGN DRAWINGS.
8.JOINT SEALANT FOR ALL CONCRETE CONTROL, CONSTRUCTION AND ISOLATION JOINTS SHALL BE SIKAFLEX-1A BY SIKA CORP., OR APPROVED EQUAL.
9.WATERSTOPS SHALL BE TPER MATERIAL. WATER STOPS SHALL BE WIRED TO REINFORCEMENT TO PREVENT FOLDOVER DURING CONCRETE PLACEMENT. ALL
JOINTS, EXCEPT STRAIGHT BUTT JOINTS, SHALL BE SHOP MADE BY THE MANUFACTURER. FIELD SPLICES SHALL BE HEAT-WELDED.
10.PER MANUFACTURER'S RECOMMENDATION.GROUT USED FOR VARIOUS APPLICATIONS SHALL BE AS FOLLOWS:
a.GROUT USED FOR STRUCTURAL STEEL COLUMN BASE PLATES SHALL BE PREPACKED, HIGH-FLUIDITY NON-SHRINK, NATURAL AGGREGATE GROUT SUCH AS
"MASTERFLOW 713 PLUS" BY BASF (FORMERLY MASTER BUILDERS) OR APPROVED EQUAL. FOLLOW MANUFACTURER'S INSTRUCTIONS FOR INSTALLATION.
SPACE BETWEEN THE ANCHOR RODS AND OVERSIZED HOLES IN THE BASE PLATE SHALL BE FULLY GROUTED WITH NON-SHRINK GROUT TO ASSURE PROPER
SHEAR TRANSFER. GROUTING SHALL BE PERFORMED ONE BOLT AT A TIME, WHILE OTHER BASE PLATE RODS ARE FULLY TIGHTENED.
b.GROUT USED FOR GROUTING COMPRESSORS, TURBINES, LARGE PUMPS, AND OTHER RECIPROCATING OR ROTATING EQUIPMENT THAT REQUIRES EPOXY
GROUTING AS SHOWN ON DESIGN DRAWINGS SHALL BE "FIVE STAR HP" EPOXY GROUT BY FIVE STAR PRODUCTS, INC. OR APPROVED EQUAL, FOLLOW
MANUFACTURER'S INSTRUCTIONS FOR INSTALLATION.
11.VOID FORM SHALL BE “SURE VOID” OR APPROVED EQUAL. KEEP VOID FORM MATERIAL DRY DURING PLACEMENT AND INSTALL IN ACCORDANCE WITH
MANUFACTURER'S RECOMMENDATIONS.VOID FORM SHALL BE BIODEGRADABLE AND CAPABLE OF SUPPORTING THE FLUID WEIGHT OF THE CONCRETE.
12.SIZES AND LOCATIONS OF EQUIPMENT BASES, SUMPS, AND EQUIPMENT ANCHOR BOLTS SHOWN ON DRAWINGS ARE APPROXIMATE; THE GENERAL
CONTRACTOR SHALL VERIFY ALL SIZES AND LOCATIONS WITH MECHANICAL AND ELECTRICAL DIVISIONS.
E.HELICAL PILES
1.HELICAL PILES SHALL BE INSTALLED WITHIN 1" OF COORDINATE (PLAN) LOCATIONS, AND WITHIN -1/2", +1/8" IN ELEVATION. SHIM AS REQUIRED.
2.IF HELICAL PILES ARE NOT ZINC COATED, DESIGN WALL THICKNESS AND OUTSIDE DIAMETER SHALL ACCOUNT FOR CORROSION LOSS OF 0.018" OF OUTSIDE
WALL THICKNESS, AS INDICATED IN SECTION 3.9 OF AC358 "ACCEPTANCE CRITERIA FOR HELICAL PILE SYSTEMS AND DEVICES". ZINC COATINGS, IF USED, SHALL
COMPLY WITH ASTM A123, A153, B633, OR B695, AS APPLICABLE.
3.PILES SHALL BE DESIGNED TO LIMIT DEFLECTION UNDER SERVICE LOAD TO 1/2", AND PILE CAPACITY SHALL BE DESIGNED FOR 2X SERVICE LOAD.
4.PILE DESIGN CONTRACTOR SHALL PROVIDE CUT SHEETS ON MATERIALS USED, CONFIGURATION OF SCREW PILES, AND INSTALLATION CRITERIA (TORQUE,
DEPTH, ETC.) FOR APPROVAL PRIOR TO FABRICATION.
5.ANY LOAD TESTING SHALL BE PERFORMED PER ASTM 1143 (COMPRESSION), ASTM 3689 (TENSION) AND ASTM 3966 (LATERAL), AS APPLICABLE.
6.CONTINUOUS INSPECTION BY QUALIFIED PERSONNEL IS REQUIRED FOR ALL PILE INSTALLATIONS.
F. STRUCTURAL STEEL
1.MATERIAL SPECIFICATIONS, UNLESS NOTED OTHERWISE ON PLAN:
a.WIDE FLANGE ASTM A992 (FY = 50KSI)
b.CHANNELS, ANGLES, PLATES, AND BARS ASTM A36 (FY = 36 KSI)
c.SQUARE AND RECTANGULAR HSS SHAPES ASTM A500 (FY = 46 KSI)
d.PIPES ASTM A53 (FY=35 KSI)
2.CONNECTIONS:
a.ANCHOR RODS SHALL MEET THE REQUIREMENTS OF ASTM F1554, 36 KSI YIELD STRENGTH. COMMON ROD STOCK BARS SHALL NOT BE USED.
b.BOLTED CONNECTIONS SHALL BE FASTENED WITH HIGH STRENGTH A-325 BOLTS DESIGNED FOR THREADS INCLUDED IN SHEAR PLANES (CONNECTION TYPE N)
EXCEPT AS NOTED ON THE PLANS.
c.WELDING SHALL CONFORM TO THE CURRENT AMERICAN WELDING SOCIETY CODE. WELDING ELECTRODES SHALL BE E70XX, UNLESS NOTED OTHERWISE. ALL
WELDING SHALL BE BY AWS CERTIFIED WELDERS. WELDS WHICH ARE FOUND TO BE FAULTY SHALL BE REWORKED BY THE CONTRACTOR AT NO COST.
d.ADHESIVE ANCHORS FOR CONCRETE SHALL BE HAS-V-36 RODS (ASTM F1554 36 KSI) WITH HILTI HIT-HY 200 V3 ADHESIVE “SAFE SET SYSTEM” AS
DOCUMENTED BY CURRENT ICC-ES REPORT ESR-4868. CONTRACTOR MAY SUBMIT ALTERNATE FOR APPROVAL WITH ALLOWABLE LOAD VALUES EQUAL TO OR
EXCEEDING THOSE FOR HILTI. ANCHORS SHALL BE GALVANIZED.
3.FABRICATION:
a.SHOP DRAWINGS SHALL BE SUBMITTED TO THE ENGINEER FOR REVIEW AND APPROVAL. STEEL FABRICATION SHALL NOT BEGIN UNTIL SHOP DRAWINGS HAVE
BEEN APPROVED BY THE ENGINEER.
b.STEEL SHALL BE FABRICATED IN AN A.I.S.C.-CERTIFIED STEEL FABRICATION SHOP UNLESS APPROVED BY THE ENGINEER.
c.MILL REPORTS SHALL BE PROVIDED FOR ALL STEEL.
4.COATINGS:
a.STRUCTURAL STEEL SHALL BE SHOT BLASTED, PRIMED, AND GALVANIZED.
b.ALL STEEL SHALL BE HOT DIP GALVANIZED PER ASTM A123 (3-MIL MIN.)
c.IF FIELD MODIFICATIONS REQUIRE REMOVAL OF HDG, THEN UTILIZE ZRC COLD GALVANIZATION PRODUCT TO PERFORM GALVANIZATION TOUCH-UPS.
5.ERECTION
a.FIELD CUTTING OF STEEL OR OTHER FIELD MODIFICATIONS ARE PROHIBITED WITHOUT WRITTEN APPROVAL FROM THE ENGINEER.
b.FABRICATOR SHALL FURNISH ALL FIELD BOLTS, BOLT SCHEDULE, CLIP ANGLES, AND TEMPORARY FASTENINGS REQUIRED FOR ERECTION.
c.THE CONTRACTOR SHALL PROVIDE TEMPORARY SUPPORT AND SAFE LIFTING SCHEMES FOR STEEL MEMBERS AS REQUIRED DURING ALL PHASES OF
CONSTRUCTION.
d.ALL DAMAGED MATERIAL SHALL BE REPAIRED OR REPLACED AT NO EXTRA COST TO THE OWNER AND SUBJECT TO THE APPROVAL OF THE OWNER OR
AUTHORIZED REPRESENTATIVE.
G. GENERAL CONSTRUCTION
1.THE STRUCTURAL ENGINEER SHALL NOT HAVE CONTROL OR CHARGE OF, AND SHALL NOT BE RESPONSIBLE FOR: CONSTRUCTION MEANS, METHODS,
TECHNIQUES, SEQUENCES OR PROCEDURES; FOR SAFETY PRECAUTIONS AND PROGRAMS IN CONNECTION WITH THE WORK; FOR THE ACTS OR OMISSIONS OF
THE CONTRACTOR, SUBCONTRACTORS, OR ANY OTHER PERSONS PERFORMING ANY OF THE WORK IN ACCORDANCE WITH THE CONTRACT DOCUMENTS.
2.ANY TEMPORARY FACILITIES PLACED BY THE CONTRACTOR FOR CONSTRUCTION OPERATIONS, SUCH AS CRANE BASES, TRAILERS, SHEET PILING, ETC., SHALL BE
LOCATED SO AS NOT TO INTERFERE WITH PERMANENT BUILDING CONSTRUCTION. IF INTERFERENCE OCCURS, THE CONTRACTOR SHALL REMOVE OR RELOCATE
HIS TEMPORARY FACILITIES AT HIS OWN EXPENSE.
3.DO NOT BACKFILL AGAINST BUILDING, TANK, OR TUNNEL WALLS BELOW GRADE UNTIL FLOOR (OR ROOF) SLAB HAS BEEN PLACED AND CURED FOR AT LEAST
SEVEN DAYS AND WALLS HAVE ATTAINED A STRENGTH OF 3,000 PSI. PLACE BACKFILL EVENLY ON EACH SIDE OF WALLS TO PREVENT ECCENTRIC LOADING ON
WALLS.
4.THE CONTRACTOR SHALL BE RESPONSIBLE FOR STABILITY BRACING AND SHORING OF THE STRUCTURE DURING CONSTRUCTION, INCLUDING ALL
CONSTRUCTION LOADS. THE CONTRACTOR SHALL COORDINATE THE LOCATION OF ALL FOUNDATION WORK WITH THE LOCATION OF ALL SUBGRADE
MECHANICAL AND ELECTRICAL WORK. THE CONTRACTOR SHALL PROVIDE ADDITIONAL REINFORCEMENT AROUND ALL PENETRATIONS IN FOUNDATION WALLS.
UNLESS SPECIFICALLY NOTED ON THE DRAWINGS, MECHANICAL AND ELECTRICAL WORK IS NOT PERMITTED TO BE EMBEDDED IN FOUNDATIONS OR PLACED
BENEATH FOUNDATION BEARING.
5.THE CONTRACTOR SHALL BE AWARE OF OVERHEAD POWER LINES, SUBFLOOR ELECTRICAL CONDUIT, AND SUBGRADE UTILITIES OR TUNNELS AT THE SITE.
VERIFY UTILITY LOCATIONS WITH OWNER, GOPHER STATE ONE-CALL (651-454-0002), AND UTILITY COMPANIES.
6.ANY ENGINEERING DESIGN PROVIDED BY OTHERS SHALL BE SUBMITTED FOR REVIEW AND SHALL BEAR THE SIGNATURE AND VALID REGISTRATION NUMBER OF
A PROFESSIONAL ENGINEER LICENSED IN THE STATE OF MINNESOTA.
7.CONTRACTOR SHALL FIELD-VERIFY ALL EXISTING CONDITIONS AND DIMENSIONS AT THE BUILDING AND/OR SITE.
8.THE CONTRACTOR SHALL BE RESPONSIBLE FOR THE COORDINATION OF ALL WORK PERFORMED BY SUBCONTRACTORS.
9.THE CONTRACTOR SHALL DOCUMENT AS-BUILT INFORMATION AND PROVIDE AS-BUILT DRAWINGS TO THE ENGINEER FOR ALL WORK PERFORMED.
10.SCALES NOTED ON DRAWINGS ARE ACCURATE FOR FULL-SIZE (22x34) DRAWINGS ONLY.
H. SCHEDULE OF GENERAL AND SPECIAL INSPECTIONS (AS APPLICABLE)
1.SPECIAL INSPECTION: THE FOLLOWING ITEMS REQUIRE SPECIAL INSPECTION (PER SECTION 1704 OF THE IBC, PROVIDE MINIMUM 24-HOUR NOTICE TO
INSPECTOR:
a.EARTHWORK
b.FOUNDATION CAPACITY
c.CONCRETE CYLINDER (7 AND 28 DAY AND SPARE) AND SLUMP
d.CONCRETE REINFORCING
e.STRUCTURAL STEEL WELDING AND HIGH STRENGTH BOLTING
f.EXPANSION AND ADHESIVE ANCHORS
2.INSPECTION AND TESTING REPORTS SHALL BE COMPLETED AND DISTRIBUTED AT THE COMPLETION OF EACH TASK. IF A TASK IS TO TAKE LONGER THAN THREE
(3) DAYS, PROVIDE REPORTS FOR EACH DAY. PROVIDE COPIES OF REPORTS TO: CONTRACTOR, OWNER, AND THE ENGINEER OF RECORD. INSPECTOR TO KEEP A
NON-COMPLIANCE LIST DOCUMENTING ITEMS INSPECTED NOT MEETING APPROVED CONSTRUCTION DOCUMENTS AND WHEN/HOW RESOLVED.
DRAWING REVISION FOR STRUCTURAL RETAINING WALL &
WATER LINE SUPPORTS ONLY. REMAINING STRUCTURAL
MOUNDING SCOPE TO BE ISSUED AT A LATER DATE.
PROFESSIONAL ENGINEER
I hereby certify that this plan, specification, or
report was prepared by me or under my direct
supervision and that I am a duly Licensed
Professional Engineer under the Laws of the
state of Minnesota.
Signature:
Typed or Printed Name: Randy S. Paul
Date: License Number: 5663705/28/2024
Page 37 of 68
SERVICE CENTER:
CAD FILE NAME:
BY
DRAWINGREVISIONS
NO.DESCRIPTION DATE
DESIGNED BY:
APPROVED BY:
CHECKED BY:
DRAWN BY:
TYPE:
LOCATION:
DIVISION:CITY/COUNTY :IN SERVICE DATE:
HISTORY DATE
FLOC:
®
SIBLEY PROPANE PLANT
STRUCTURAL NOTES 40011
0
D1_40011_Sibley Mounding.dwg
NORTHERN MENDOTA HEIGHTS / DAKOTA FACILITY
UNIT 00
GU-SPG
NORTHERN STATES POWER COMPANY
JMC 02/27/24
RSP 02/27/24
JG 05/24/24
RSP 05/31/24
0 ISSUED FOR CONSTRUCTION - RET. WALL JMC 05/31/24
ABBREVIATIONS:
A.B.= ANCHOR BOLT
B.O.C. = BOTTOM OF CONCRETE
C.J.= CONSTRUCTION JOINT
C.L.= CENTERLINE
C.T.= CONTROL JOINT
C.V.= COMPACTED VOLUME
CLR.= CLEAR
CONC.= CONCRETE
CONT.= CONTINUOUS
DET.= DETAIL
DWGS.= DRAWINGS
E.F.=EACH FACE
E.J.=EXPANSION JOINT
E.W.=EACH WAY
ELEV.= ELEVATION
EQUIP.= EQUIPMENT
FDN.= FOUNDATION
GALV.= GALVANIZE
GRTG.= GRATING
HORIZ.= HORIZONTAL
I.F.= INSIDE FACE
MAX.= MAXIMUM
MFR.= MANUFACTURER
MIN.= MINIMUM
N.F.S.= NON-FROST-SUSCEPTIBLE
O.C.= ON CENTER
O.D.= OUTSIDE DIAMETER
O.F.= OUTSIDE FACE
REINF.= REINFORCEMENT
REQ'D. = REQUIRED
S.J.= SEALED JOINT
S.S.= STAINLESS STEEL
SPS.= SPACES
T & B = TOP AND BOTTOM
T.O.A.= TOP OF CONCRETE
T.O.S.= TOP OF STEEL
T.O.W.= TOP OF WALL
TYP.= TYPICAL
U.N.O.= UNLESS NOTED OTHERWISE
VERT.= VERTICAL
1. INSPECTION OF REINFORCING STEEL, INCLUDING PRESTRESSING
TENDONS AND PLACEMENT.
2. INSPECTION OF REINFORCING STEEL WELDING IN ACCORDANCE
WITH TABLE 1705.2.2, ITEM 2b.
7. AT THE TIME FRESH CONCRETE IS SAMPLED TO FABRICATE
SPECIMENS FOR STRENGTH TESTS, PERFORM SLUMP AND AIR
CONTENT TESTS AND DETERMINE THE TEMPERATURE OF
THE CONCRETE.
8. INSPECTION OF CONCRETE AND SHOTCRETE PLACEMENT FOR
PROPER APPLICATION TECHNIQUES.
3. INSPECTION OF ANCHORS CAST IN CONCRETE .
6. VERIFYING USE OF REQUIRED DESIGN MIX.
4. INSPECTION OF ANCHORS POST-INSTALLED IN HARDENED
CONCRETE MEMBERS.
INSPECTION
REQUIRED
Y/N
Y
Y
Y
INSPECTION
REQUIRED
Y/N
VERIFICATION AND INSPECTION TASK CONTINUOUS
DURING TASK
LISTED
PERIODICALLY
DURING TASK
LISTED
INSPECTION AND VERIFICATION OF CONCRETE CONSTRUCTION
FREQUENCY OF INSPECTION
Y
---
X
N
Y
Y
---
Y
REFERENCED
STANDARD
ACI 318: 3.5,
26.6
Y
Y
---
X
X
---
---
X
X
X
---
---
AWS D1.4
ACI 318: 26.6.4
ACI 318: 26.7
ACI 318: 26.7
ACI 318: 26.4
ASTM C 172
ASTM C 31
ACI 318: 26.12,26.13
ACI 318: 26.5
5. VERIFICATION OF ANCHOR MATERIAL CERTIFICATIONS.Y ---X AISC 360
X
10. VERIFICATION OF IN-SITU CONCRETE STRENGTH, PRIOR TO
STRESSING OF TENDONS IN POST-TENSIONED CONCRETE AND
PRIOR TO REMOVAL OF SHORING AND FORMS FROM BEAMS AND
STRUCTURAL SLABS.
11. INSPECT FORMWORK FOR SHAPE, LOCATION AND DIMENSIONS
OF THE CONCRETE MEMBER BEING FORMED.
9. INSPECTION FOR MAINTENANCE OF SPECIFIED CURING
TEMPERATURE AND TECHNIQUES.---
---
---
X
X
X
ACI 318:
26.5.3
ACI 318: 26.11
ACI 318: 26.11
VERIFICATION AND INSPECTION TASK
CONTINUOUS
DURING TASK
LISTED
PERIODICALLY
DURING TASK
LISTED
---X
---X
---X
Y
Y
Y
1. VERIFY MATERIALS BELOW FOOTINGS ARE ADEQUATE TO ACHIEVE DESIRED BEARING CAPACITY.
2. VERIFY EXCAVATIONS ARE EXTENDED TO PROPER DEPTH AND HAVE REACHED PROPER MATERIAL.
3. PERFORM CLASSIFICATION AND TESTING OFCOMPACTED FILL MATERIALS.
4. VERIFY USE OF PROPER MATERIALS, DENSITIES AND LIFT THICKNESSES DURING PLACEMENT AND
COMPACTION OF COMPACTED FILL.
5. PRIOR TO PLACEMENT OF COMPACTED FILL, OBSERVE SUBGRADE AND VERIFY THAT SITE HAS BEEN
PREPARED PROPERLY.
FREQUENCY OF INSPECTION
INSPECTION AND VERIFICATION OF SOILS
Y X ---
---XY
INSPECTION
REQUIRED Y/N VERIFICATION AND INSPECTION TASK
FREQUENCY OF INSPECTION
REFERENCED
STANDARDCONTINUOUS
DURING TASK
LISTED
PERIODICALLY
DURING TASK
LISTED
1. MATERIAL VERIFICATION OF HIGH-STRENGTH BOLTS, NUTS, AND WASHERS:
Y
A. IDENTIFICATION MARKINGS TO CONFORM TO ASTM
STANDARDS SPECIFIED IN THE APPROVED
CONSTRUCTION DOCUMENTS.
-X
AISC 360
SECTION A3.3
AND APPLICABLE
ASTM MATERIAL
STANDARDS
Y B. MANUFACTURER'S CERTIFICATE OF COMPLIANCE
REQUIRED.-X -
2. INSPECTION OF HIGH-STRENGTH BOLTING:
Y A. SNUG TIGHT JOINTS.-X
AISC 360
SECTION M2.5
N
B. PRETENSIONED AND SLIP-CRITICAL JOINTS USING
TURN-OF-NUT WITH MATCHMARKING, TWIST-OFF BOLT, OR
DIRECT TENSION INDICATOR METHOD OF INSTALLATION.
-X
N
C. PRETENSIONED AND SLIP-CRITICAL JOINTS USING
TURN-OF-NUT WITHOUT MATCHMARKING, OR CALIBRATED
WRENCH METHODS OF INSTALLATION.
X -
3. MATERIAL VERIFICATION OF STRUCTURAL STEEL AND COLD-FORMED STEEL DECK:
Y A. FOR STRUCTURAL STEEL, IDENTIFICATION MARINGS TO
CONFORM TO AISC 360.-X -
Y
B. FOR OTHER STEEL, IDENTIFICATION MARKINGS TO
CONFORM TO ASTM STANDARDS SPECIFIED IN THE
APPROVED CONSTRUCTION DOCUMENTS.
-X
APPLICABLE
ASTM MATERIAL
STANDARDS
Y C. MANUFACTURER'S CERTIFIED MILL TEST REPORTS.-X -
4. MATERIAL VERIFICATION OF WELD FILLER MATERIALS:
Y
A. IDENTIFICATION MARKINGS TO CONFORM TO AWS
SPECIFICATION IN THE APPROVED CONSTRUCTION
DOCUMENTS.
-X
AISC 360 SECTION
A3.5 AND
APPLICABLE AWS
A5 DOCUMENTS
Y B. MANUFACTURER'S CERTIFICATE OF COMPLIANCE
REQUIRED.-X -
5. INSPECTION OF WELDING:
A. STRUCTURAL STEEL AND COLD FORMED STEEL DECK:
N 1) COMPLETE AND PARTIAL PENETRATION GROOVE
WELDS.X -
AWS D1.1
N 2) MULTIPASS FILLET WELDS.X -
N 3) SINGLE-PASS FILLET WELDS > 5/16".X -
N 4) PLUG AND SLOT WELDS.X -
Y 5) SINGLE-PASS FILLET WELDS ≤5/16".-X
N 6) FLOOR AND ROOF DECK WELDS.-X AWS D1.3
B. REINFORCING STEEL:
Y 1) VERIFICATION OF WELDABILITY OF REINFORCING STEEL
OTHER THAN ASTM A706.-X
AWS D1.4
ACI 318
SECTION 3.5.2
N
2) REINFORCING STEEL: RESISTING FLEXURAL AND AXIAL
FORCES IN INTERMEDIATE AND SPECIAL MOMENT
FRAMES, AND BOUNDARY ELEMENTS OF SPECIAL
STRUCTURAL WALLS OF CONCRETE AND SHEAR
REINFORCEMENT.
X -
Y 3) SHEAR REINFORCEMENT.X -
Y 4) OTHER REINFORCING STEEL.-X
6. INSPECTION OF STEEL FRAME JOINT DETAIL FOR COMPLIANCE:
Y A. DETAILS SUCH AS BRACING AND STIFFENING.-X
-Y B. MEMBER LOCATIONS.-X
Y C. APPLICATION OF JOINT DETAILS AT EACH CONNECTION.-X
N 7. SFRS (SEISMIC FORCE RESISTING SYSTEM)X --
INSPECTION
REQUIRED
Y/N
Y
VERIFICATION AND INSPECTION TASK
CONTINUOUS
DURING TASK
LISTED
PERIODICALLY
DURING TASK
LISTED
X
1. CONTINOUS INSPECTION SHALL BE PERFORMED DURING INSTALLATION
OF HELICAL PILE FOUNDATIONS. INFORMATION SHALL BE RECORDED
INCLUDING INSTALLATION EQUIPMENT USED, PILE DIMENSIONS, TIP
ELEVATIONS, FINAL DEPTH, FINAL INSTALLATION TORQUE, AND OTHER
PERTINENT INSTALLATION AS REQUIRED BY THE REGISTERED DESIGN
PROFESSIONAL RESPONSIBLE IN CHARGE. THE APPROVED GEOTECHNICAL
REPORT AND CONSTRUCTION DOCUMENTS PREPARED BY THE
REGISTERED DESIGN PROFESSIONAL SHALL BE USED TO DETERMINE
COMPLIANCE.
FREQUENCY OF INSPECTION
INSPECTION AND VERIFICATION OF HELICAL PILE FOUNDATONS
REFERENCED
STANDARDS
IBC SECTION 1705.9
INSPECTION AND VERIFICATION OF STEEL CONSTRUCTION
SUBMITTALS:
1.ALL SUBMITTALS SHALL BE SENT TO THE ENGINEER FOR REVIEW AND APPROVAL PRIOR TO
PROCUREMENT, FABRICATION, OR CONSTRUCTION.
2.REQUIRED SUBMITTALS ARE PROVIDED.
a.STRUCTURAL FILL (A.3.f)
b.CONCRETE MIX DESIGN (4010 D.1.i)
c.REBAR SHOP DRAWINGS (4010 D.4.d)
d.HELICAL PILE DESIGN & SUBMITTAL (4010 E)
e.STRUCTURAL STEEL SHOP DRAWINGS (4010 F.3.a)
f.ENGINEERING COMPLETED BY OTHERS (4010 G. 6)
g.ANY MATERIAL THAT DIFFERS FROM WHAT IS SPECIFIED ON 4010, 4011, OR THE
FOLLOWING STRUCTURAL DRAWINGS.
DRAWING REVISION FOR STRUCTURAL RETAINING WALL &
WATER LINE SUPPORTS ONLY. REMAINING STRUCTURAL
MOUNDING SCOPE TO BE ISSUED AT A LATER DATE.
PROFESSIONAL ENGINEER
I hereby certify that this plan, specification, or
report was prepared by me or under my direct
supervision and that I am a duly Licensed
Professional Engineer under the Laws of the
state of Minnesota.
Signature:
Typed or Printed Name: Randy S. Paul
Date: License Number: 5663705/28/2024
Page 38 of 68
PLANT NORTH
1.02°TRU
E
N
O
R
T
H
SERVICE CENTER:
CAD FILE NAME:
BY
DRAWINGREVISIONS
NO.DESCRIPTION DATE
DESIGNED BY:
APPROVED BY:
CHECKED BY:
DRAWN BY:
TYPE:
LOCATION:
DIVISION:CITY/COUNTY :IN SERVICE DATE:
HISTORY DATE
FLOC:
®
SIBLEY PROPANE PLANT
FOUNDATION KEY PLAN 41000
0
D1_41000_Sibley Mounding.dwg
NORTHERN MENDOTA HEIGHTS / DAKOTA FACILITY
UNIT 00
GU-SPG
NORTHERN STATES POWER COMPANY
JMC 04/04/24
RSP 04/04/24
JG 05/24/24
RSP 05/31/24
0 ISSUED FOR CONSTRUCTION - RET. WALL JMC 05/31/24
41001 41006 41011 41016 41021 41026 41030 41034
41002 41007 41012 41017 41022 41027 41031 41035
41003 41008 41013 41018 41023 41028 41032 41036
41004 41009 41014 41019 41024 41029 41033 41037
41038 41041 41044 41047 41050 41053
41039 41042 41045 41048 41051 41054
41040 41043 41046 41049 41052 41055
41005 41010 41015 41020 41025
PROPOSED CONCRETE
EXISTING FENCE
EXISTING ABOVE GROUND PIPING & EQUIPMENT
EXISTING UNDER GROUND PIPING & EQUIPMENT
EXISTING STEEL/CONCRETE
X
LEGEND:
PLANT COORDINATE 0,0
N 1022497.52'
E 2849480.46'
PROPOSED
STAIR & RAMP
PROPOSED
SIDEWALK, TYP.
PROPOSED
SUPPORT SLAB, TYP.
PROPOSED
STAIR
PROPOSED DRAINAGE
POND, SEE CIVIL
TANK BANK 360 TANK
BANK 350
TANK
BANK 340
TANK
BANK 320
TANK
BANK 310
PROPOSED
STAIR & RAMP
EXISTING PLC
EXISTING VAPORIZER
BLDG.
EXISTING NG SUPPLY
REG/METER
EXISTING PDC
EXISTING
TRASFORMERS
EXISTING
TRUCK UNLOAD
EXISTING
TRUCK UNLOAD
EXISTING PLANT
ACCESS ROAD
EXISTING LPG
TRANSFER PUMPS
PROPOSED
STAIR
EXISTING PIPE
BRIDGE
EXISTING AIR
RECIEVER
EXISTING AIR
DRYERS
EXISTING
COMPRESSOR
BLDG
EXISTING WEG
COOLERS
EXISTING
BOILER BLDG
NOTES:
1. ALL COORDINATES BASED ON NAD83 MINNESOTA STATE PLANS, SOUTH ZONE.
2. SEE THE FOLLOWING FOR OTHER DISCIPLINE KEY PLANS: 4300 FOR CIVIL, 6100 FOR
MECHANICAL & PIPING, 7200 FOR CONDUIT, 7300 FOR ELECTRICAL, & 8000 FOR CONTROLS.
EXISTING EAST
PIPE BRIDGE
PROPOSED MOUNDING
GRADING, SEE CIVIL
EXISTING TANKS TO BE
BURIED, TYP.
FIRE WATER LINE
PROPOSED
STAIR
DRAWING REVISION FOR STRUCTURAL RETAINING WALL &
WATER LINE SUPPORTS ONLY. REMAINING STRUCTURAL
MOUNDING SCOPE TO BE ISSUED AT A LATER DATE.
PROPOSED
RETAINING WALL
PROFESSIONAL ENGINEER
I hereby certify that this plan, specification, or
report was prepared by me or under my direct
supervision and that I am a duly Licensed
Professional Engineer under the Laws of the
state of Minnesota.
Signature:
Typed or Printed Name: Randy S. Paul
Date: License Number: 5663705/28/2024
Page 39 of 68
PLANT NORTH1.02°TRUE NORTHSERVICE CENTER:
CAD FILE NAME:
BY
DRAWINGREVISIONS
NO.DESCRIPTION DATE
DESIGNED BY:
APPROVED BY:
CHECKED BY:
DRAWN BY:
TYPE:
LOCATION:
DIVISION:CITY/COUNTY :IN SERVICE DATE:
HISTORY DATE
FLOC:
®
SIBLEY PROPANE PLANT
FOUNDATION PLAN 41027
0
D1_41027_Sibley Mounding.dwg
NORTHERN MENDOTA HEIGHTS / DAKOTA FACILITY
UNIT 10
GU-SPG
NORTHERN STATES POWER COMPANY
JMC 04/04/24
RSP 04/04/24
JG 05/24/24
RSP 05/31/24
0 ISSUED FOR CONSTRUCTION - RET. WALL JMC 05/31/24
DRAWING LIMITS, FOR CONTINUATION SEE 41031
DRAWING LIMITS, FOR CONTINUATION SEE 41022 DRAWING LIMITS, FOR CONTINUATION SEE 41028DRAWING LIMITS, FOR CONTINUATION SEE 41026RETAINING WALL
PROPOSED CONCRETE
EXISTING ABOVE GROUND PIPING & EQUIPMENT
EXISTING UNDER GROUND PIPING & EQUIPMENT
EXISTING STEEL/CONCRETE
LEGEND:
NOTES:
1. REFERENCE DRAWING 41000 FOR FOUNDATION KEY PLAN
2. REFERENCE DRAWINGS 40010 & 40011 FOR STRUCTURAL NOTES.
3. ALL DIMENSIONS AND ELEVATIONS SHALL BE VERIFIED WITH EXISTING CONDITIONS PRIOR
TO CONSTRUCTION.
4. EXCAVATION FOR RETAINING WALL SHALL NOT DISTURB EXISTING FOUNDATIONS OR PIPE.
PROPOSED DRAINAGE
TRENCH, SEE CIVIL
EXISTING PIPE BRIDGE
EXISTING PUMP &
MANIFOLD AREA
DRAWING REVISION FOR STRUCTURAL RETAINING WALL &
WATER LINE SUPPORTS ONLY. REMAINING STRUCTURAL
MOUNDING SCOPE TO BE ISSUED AT A LATER DATE.
PROPOSED MOUNDING
SLOPE, SEE 4300
EXCAVATION INTO EXISTING SLOPE WILL BE REQUIRED
TO CONSTRUCT RETAINING WALL, ANY TEMPORARY
SHORING REQUIRED SHALL BE PER THE CONTRACTOR.
PROFESSIONAL ENGINEER
I hereby certify that this plan, specification, or
report was prepared by me or under my direct
supervision and that I am a duly Licensed
Professional Engineer under the Laws of the
state of Minnesota.
Signature:
Typed or Printed Name: Randy S. Paul
Date: License Number: 5663705/28/2024
Page 40 of 68
SERVICE CENTER:
CAD FILE NAME:
BY
DRAWINGREVISIONS
NO.DESCRIPTION DATE
DESIGNED BY:
APPROVED BY:
CHECKED BY:
DRAWN BY:
TYPE:
LOCATION:
DIVISION:CITY/COUNTY :IN SERVICE DATE:
HISTORY DATE
FLOC:
®
SIBLEY PROPANE PLANT
TYPICAL THRUST BLOCK DETAIL 44003
0
D1_44003_Sibley Mounding.dwg
NORTHERN MENDOTA HEIGHTS / DAKOTA FACILITY
UNIT 00
GU-SPG
NORTHERN STATES POWER COMPANY
JMC 04/04/24
RSP 04/04/24
JG 05/24/24
RSP 05/31/24
0 ISSUED FOR CONSTRUCTION - RET. WALL JMC 05/31/244'-0" MIN. COVERBEARING PAD
SEE NOTE 2
OPTIONAL POWERCRETE
SEE NOTE 6
SAND/CEMENT SUPPORT BLOCK
SEE NOTES 4 & 5SEE NOTE 3
"A"
SAND/CEMENT SUPPORT BLOCK
SEE NOTES 4 & 5 TRENCH WIDTH"B"PAD
SUPPORT
DIMENSIONS
LINE
PIPE
A x 3122
4
8
6
8
10
12
14
16
18
20
22
24
26
TYPE 1
BELOW GRADE
30
34
36
42
CANPS
(in)B
12
1216 A x 316
122020
20 20 12
12
A x 4
A x 5
A x 6
A x 6
A x 7
A x 7
A x 8
A x 8
A x 9
A x 9
A x 10
A x 11
A x 12
A x 12
A x 14
12
12
14
14
18
18
18
18
18
18
18
18
26
26
26
32
32
32
42
42
42
42
48
48
54
26
26
26
32
32
32
42
42
42
42
48
48
54
BEARING
PAD
SUPPORT
DIMENSIONS
LINE
PIPE
A x 3182
4
12
6
8
10
12
14
16
18
20
22
24
26
TYPE 2
BELOW GRADE
FOR USE ON MNLN BLOWDOWN
30
34
36
42
CANPS
(in)B
12
1231 A x 316
123920
49 20 18
18
A x 4
A x 5
A x 6
A x 6
A x 7
A x 7
A x 8
A x 8
A x 9
A x 9
A x 10
A x 11
A x 12
A x 12
A x 14
18
18
18
18
24
24
24
24
24
30
30
30
48
55
61
67
74
80
88
93
88
99
111
117
127
26
26
26
32
32
32
42
42
42
42
48
48
54
NOTES:
1. ALL DIMENSIONS ARE IN INCHES UNLESS OTHERWISE NOTED.
2. BEARING PAD TO BE TEFLON (PTFE), FABREEKA OR "XCEL" APPROVED EQUAL. WITH THE PTFE TO FACE THE PIPE.
3. SUPPORT BLOCKS SHALL BEAR ON NATIVE, UNDISTURBED SOIL OR STRUCTURAL FILL COMPACTED TO A MINIMUM OF 95%
OF THE RELATIVE DRY DENSITY PER ASTM D698 TO PROVIDE A MINIMUM ALLOWABLE SOIL BEARING VALUE OF 1500 PSF.
4. USE GROUT (SAND/CEMENT MIX) NO COARSE AGGREGATE. WITH A SLUMP OF 6" MAX. A MIN. 28 DAY COMPRESSIVE
STRENGTH: OF 3000 PSI.
5. SUPPORTS MAY BE POURED "NEAT" AGAINST TRENCH BOTTOM AND SIDES PROVIDED AT LEAST SPECIFIED DIMENSIONS ARE
ACHIEVED.
6. COAT ENTIRE PIPE WITH FBE AND OVER COAT WITH POWERCRETE-J OR AN APPROVED EQUAL (40 MILS MIN.) THE
UNDERSIDE OF THE PIPE IN THE AREA OF THE SUPPORT."C"GRADE
CLPIPE
CLPIPE
GRADE
BEARING
PROFESSIONAL ENGINEER
I hereby certify that this plan, specification, or
report was prepared by me or under my direct
supervision and that I am a duly Licensed
Professional Engineer under the Laws of the
state of Minnesota.
Signature:
Typed or Printed Name: Randy S. Paul
Date: License Number: 5663705/28/2024
Page 41 of 68
SERVICE CENTER:
CAD FILE NAME:
BY
DRAWINGREVISIONS
NO.DESCRIPTION DATE
DESIGNED BY:
APPROVED BY:
CHECKED BY:
DRAWN BY:
TYPE:
LOCATION:
DIVISION:CITY/COUNTY :IN SERVICE DATE:
HISTORY DATE
FLOC:
®
SIBLEY PROPANE PLANT
RETAINING WALL PLANS & ELEVATIONS 48000
0
D1_48000_Sibley Mounding.dwg
NORTH MENDOTA HEIGHTS / DAKOTA FACILITY
UNIT 00
GU-SPG
NORTHERN STATES POWER COMPANY
JMC 03/01/24
RSP 03/01/24
JG 05/24/24
RSP 05/31/24
0 ISSUED FOR CONSTRUCTION - RET. WALL JMC 05/31/24RB48001RB480018'-0" (TYP.)1'-0"6"4'-0" (TYP.)20'-8"
C.T. JOINTS EQ. SPACED
62'-0"
20'-8"
C.T. JOINTS EQ. SPACED
20'-8"
C.T. JOINTS EQ. SPACED
1'-6"3'-6"8'-6"1'-6"1'-6"1'-0"3'-6"
1'-0"1'-6"3'-6"
1'-6"3'-0"62'-0"
GRADE
2'-0" +/-PLANT NORTHTRUE NORTHAPPROX. GRADE @
FACE OF WALLC.T.C.T.BACKSIDE OF WALL, WALL TAPPERS
FROM 12" AT TOP TO 18" AT BASE
FACE OF WALL
FOOTING
FOOTING
SHEAR KEY
6"Ø DRAIN HOLES SHALL BE
LOCATED 6" +/- ABOVE FINISHED
GRADE AT FACE OF WALL,
SPACED @ 12' MAX. LOCATE AT
CONTROL JOINTS AND 3' FROM
WALL ENDS AND CORNERS.
GUARDRAIL NOT SHOWN
TOP OF WALL
EL. 814'-11"
TOP OF WALL
EL. 810'-11"
RA RA
8'-6"8'-6"2'-9"6"6"3'-0"NOTES:
1.SEE 40010 & 40011 FOR GENERAL STRUCTURAL NOTES.
2.SEE 48001 FOR RETAINING WALL REINFORCEMENT.
3.SEE 48002 FOR RETAINING WALL DETAILS.
TAPER @ BACK OF WALL, TYP.
PROFESSIONAL ENGINEER
I hereby certify that this plan, specification, or
report was prepared by me or under my direct
supervision and that I am a duly Licensed
Professional Engineer under the Laws of the
state of Minnesota.
Signature:
Typed or Printed Name: Randy S. Paul
Date: License Number: 5663705/28/2024
Page 42 of 68
SERVICE CENTER:
CAD FILE NAME:
BY
DRAWINGREVISIONS
NO.DESCRIPTION DATE
DESIGNED BY:
APPROVED BY:
CHECKED BY:
DRAWN BY:
TYPE:
LOCATION:
DIVISION:CITY/COUNTY :IN SERVICE DATE:
HISTORY DATE
FLOC:
®
SIBLEY PROPANE PLANT
RETAINING WALL SECTION 48001
0
D1_48001_Sibley Mounding.dwg
NORTH MENDOTA HEIGHTS / DAKOTA FACILITY
UNIT 00
GU-SPG
NORTHERN STATES POWER COMPANY
JMC 03/01/2024
RSP 03/01/2024
JG 05/24/24
RSP 05/31/24
0 ISSUED FOR CONSTRUCTION - RET. WALL JMC 05/31/24
NOTES:
1.SEE 40010 & 40011 FOR GENERAL STRUCTURAL NOTES.
2.SEE 48000 FOR RETAINING WALL PLAN & ELEVATIONS.
3.SEE 48002 FOR RETAINING WALL DETAILS.
RB
480008'-0"1'-6"2'-0" +/- MIN.6'-0"2" CLR1'-6"3'-6"
#6 @ 18" EA. FACE
#6 @ 12"
#6 @ 12" EXTENDING TO TOE OF
FTG
#6 @ 12" O.C.
2" CLR
1'-0"
1'-0"
#6 @ 12" O.C.
6"
DRAIN HOLE, SEE 48002
#6 @ 12"
#6 @ 12"
(2) #4 CONT.
2" CLR
3" CLRGRADE
2" CLR.
PROFESSIONAL ENGINEER
I hereby certify that this plan, specification, or
report was prepared by me or under my direct
supervision and that I am a duly Licensed
Professional Engineer under the Laws of the
state of Minnesota.
Signature:
Typed or Printed Name: Randy S. Paul
Date: License Number: 5663705/28/2024
Page 43 of 68
SERVICE CENTER:
CAD FILE NAME:
BY
DRAWINGREVISIONS
NO.DESCRIPTION DATE
DESIGNED BY:
APPROVED BY:
CHECKED BY:
DRAWN BY:
TYPE:
LOCATION:
DIVISION:CITY/COUNTY :IN SERVICE DATE:
HISTORY DATE
FLOC:
®
SIBLEY PROPANE PLANT
RETAINING WALL SECTIONS & DETAILS 48002
0
D1_48002_Sibley Mounding.dwg
NORTH MENDOTA HEIGHTS / DAKOTA FACILITY
UNIT 00
GU-SPG
NORTHERN STATES POWER COMPANY
JMC 03/01/24
RSP 03/01/24
JG 05/24/24
RSP 05/31/24
0 ISSUED FOR CONSTRUCTION - RET. WALL JMC 05/31/24
NOTES:
1.SEE 40010 & 40011 FOR GENERAL STRUCTURAL NOTES.
2.SEE 48000 FOR RETAINING WALL PLAN & ELEVATION.
3.SEE 48001 FOR RETAINING WALL DETAILS SECTIONS AND REINFORCEMENT.3'-6"2'-0" T.O.C.14" (CLR.)6"1'-0"
GUARDRAIL POST SPACING (6'-0" MAX.)
6"
℄SPLICE
1 8"34"21 2"21 2"
116"
℄SPLICE
℄TOP RAIL
116"
71 2"
21 2"21 2"3"112"112"11 4"
(TYP.)
3 16"
1'-0"
2%
SEE POST ATTACHMENT DETAILS
SEE GUARDRAIL
SPLICE DETAILS
(TYP.)
TOE PLATE 1 4" x 4" (TYP.)
POST - 11 2" Ø SCH. 80 PIPE (TYP.)
SHOP WELD ASSEMBLY TO SUITE
FABRICATOR
GUARDRAIL - 11 2" Ø SCH. 40
PIPE (TYP.)
SPLICE
1 2" PREMOLDED
EXPANSION JOINT FILLER
SIKA GREENSTREAK
PVC WATERSTOP 698
CUT OR BUTT EVERY OTHER HORIZONTAL
BAR @ EXPOSED FACE OF WALL
3 4" CHAMFER (TYP.)SPLICE PIPE 1" Ø STD. x 5" LONG
(SHOP FIT)
EXPOSED FACE OF WALL
PL 1 2" x 3" x 71 2" W/ (2) 3 4" HOLES FOR 5 8"Ø GR. 36 F
1554 THREADED ROD ADHESIVE ANCHORS
W/ 41 2" EMBED & 21 2" PROJ.
6" Ø DRAINS SPACED @ 12' MAX, SEE 48000 &
48001 FOR LOCATIONS
6" SQUARE ALUMINUM OR GALVANIZED STEEL WIRE 1 4" MESH
CLOTH, MINIMUM WIRE DIAMETER 0.025", ANCHOR TO BACKFACE
PERVIOUS BACKFILL MATERIAL IN A
NON-WOVEN FILTER FABRIC, SECURELY TIED
PERVIOUS BACKFILL MATERIAL
CONTINUOUS BEHIND RETAINING WALL
WATERSTOP AT EXPANSION
JOINTS, SEE ELEVATIONS ON
48000 & 48001, AND EXPANSION
JOINT DETAILS
SEE CIVIL DRAWING 4308 FOR
SOIL PREP & DRAINAGE PAN
SEE CIVIL DRAWING 4308 FOR
SOIL PREP & DRAINAGE PAN
18" MIN COMPACTED STRUCTURAL
FILL EXTENDING 12" MIN BEYOND
FOOTING. SEE 40010 FOR FILL &
COMPACTION NOTES
1'-0"
PROFESSIONAL ENGINEER
I hereby certify that this plan, specification, or
report was prepared by me or under my direct
supervision and that I am a duly Licensed
Professional Engineer under the Laws of the
state of Minnesota.
Signature:
Typed or Printed Name: Randy S. Paul
Date: License Number: 5663705/28/2024
Page 44 of 68
SERVICE CENTER:
CAD FILE NAME:
BY
DRAWINGREVISIONS
NO.DESCRIPTION DATE
DESIGNED BY:
APPROVED BY:
CHECKED BY:
DRAWN BY:
TYPE:
LOCATION:
DIVISION:CITY/COUNTY :IN SERVICE DATE:
HISTORY DATE
FLOC:
®
SIBLEY PROPANE PLANT
CIVIL GRADING COVER SHEET 4000
2
D1_4000_Sibley Mounding.dwg
NORTHERN MENDOTA HEIGHTS / DAKOTA FACILITY
UNIT 00
GU-SPG
NORTHERN STATES POWER COMPANY
MR 05/24/2024
IFC 05/24/2024
IFC 05/24/2024
0 ISSUED FOR CONSTRUCTION IFC 06/30/2022
1 ISSUED FOR CONSTRUCTION AJL 05/12/2023
2 ISSUED FOR CONSTRUCTION MR 05/24/2024
4000 2 CIVIL GRADING COVER SHEET
4003 0 GENERAL CIVIL NOTES
4300 2 GRADING & DRAINAGE SITE PLAN
4301 2 GRADING & DRAINAGE KEY PLAN
4302 2 GRADING & DRAINAGE PLAN - NORTHWEST
4303 2 GRADING & DRAINAGE PLAN - NORTHEAST
4304 2 GRADING & DRAINAGE PLAN - SOUTHWEST
4305 2 GRADING & DRAINAGE PLAN - SOUTHEAST
4306 0 GRADING PROFILES
4307 0 GRADING PROFILES
4308 0 GRADING AND DRAINAGE DETAILS
4309 0 GRADING AND DRAINAGE DETAILS
4310 0 GRADING AND DRAINAGE DETAILS
4311 0 GRADING AND DRAINAGE DETAILS
4312 0 GRADING AND DRAINAGE DETAILS
4313 0 GRADING AND DRAINAGE DETAILS
4400 0 POND OUTLET PLAN & PROFILE
4401 0 MANHOLE DETAILS
4600 0 FENCING DETAILS
4601 0 FENCING DETAILS
DRAWING NUMBER REV DRAWING TITLE
CIVIL GRADING COVER SHEET
PROFESSIONAL ENGINEER
I hereby certify that this plan, specification, or
report was prepared by me or under my direct
supervision and that I am a duly Licensed
Professional Engineer under the Laws of the
state of Minnesota.
Signature:
Typed or Printed Name: Isaac Francis Cohrs
Date: License Number: 5910605/24/2024
Page 45 of 68
SERVICE CENTER:
CAD FILE NAME:
BY
DRAWINGREVISIONS
NO.DESCRIPTION DATE
DESIGNED BY:
APPROVED BY:
CHECKED BY:
DRAWN BY:
TYPE:
LOCATION:
DIVISION:CITY/COUNTY :IN SERVICE DATE:
HISTORY DATE
FLOC:
®
SIBLEY PROPANE PLANT
GENERAL CIVIL NOTES 4003
0
D1_4003_Sibley Mounding.dwg
NORTHERN MENDOTA HEIGHTS / DAKOTA FACILITY
UNIT 00
GU-MPG
NORTHERN STATES POWER COMPANY
MR 05/24/2024
IFC 05/24/2024
IFC 05/24/2024
0 ISSUED FOR CONSTRUCTION MR 05/24/2024
CIVIL / GRADING NOTES
SUBSURFACE INVESTIGATION
1.CAMPOS EPC ISSUES THESE DRAWINGS FOR CONSTRUCTION UNDER THE ASSUMPTION THAT ALL REQUIRED FEDERAL,
STATE, AND LOCAL PERMITS HAVE BEEN ACQUIRED BY THE OWNER/CONTRACTOR PRIOR ANY CONSTRUCTION ACTIVITIES
UNLESS EXPLICITLY APPROVED OTHERWISE.
2.CONTRACTOR SHALL REFER TO THE SITE SPECIFIC GEOTECHNICAL REPORT GENERATED BY CAMPOS EPC - XCEL GAS
PLANT SIBLEY FOUNDATION DESIGN TECHNICAL MEMORANDUM, DATED SEPTEMBER 9, 2021. IN THE EVENT THAT AN
ADDITIONAL GEOTECHNICAL REPORT IS OBTAINED, THE OWNER WILL PROVIDE THE CONTRACTOR WITH A COPY OF THE
GEOTECHNICAL ENGINEERING REPORT WHICH INCLUDES BORING AND SOILS DATA. THE OWNER DOES NOT REPRESENT
THAT THE BORING LOGS AND OTHER TEST DATA INDICATE THE ACTUAL CONDITIONS THAT WILL BE ENCOUNTERED
THROUGHOUT THE SITES. THE BORING LOGS AND TEST DATA ONLY INDICATE THE CONDITIONS AT THE PARTICULAR
LOCATIONS OF THE BORINGS OR TESTING LOCATIONS. THE CONTRACTOR SHALL ASSUME FULL RESPONSIBILITY FOR ANY
INTERPRETATION AND CONCLUSIONS, WHICH MAY BE MADE AS TO THE NATURE OF THE MATERIALS TO BE ENCOUNTERED
AND THE DIFFICULTY OF PERFORMING THE WORK.
3.FIELD VERIFY DIMENSIONS PRIOR TO STARTING CONSTRUCTION. BRING ANY DISCREPANCIES TO THE OWNER'S THIRD
PARTY INSPECTOR'S ATTENTION AND RECONCILE WITH THE ENGINEER OF RECORD PRIOR TO CONSTRUCTION.
WEATHER
4.UNLESS APPROVED COMPENSATORY MEASURES ARE IN PLACE, NO EXCAVATION, GRADING OR OTHER WORK SHALL BE
PERFORMED IN INCLEMENT WEATHER CONDITIONS WHICH PREVENT ATTAINING SATISFACTORY CONSTRUCTION AS
SPECIFIED HEREIN.
ENVIRONMENTAL PROTECTION:
5.EROSION AND SEDIMENT CONTROL DRAWINGS ARE TO BE DESIGNED, INSTALLED, AND MAINTAINED BY OTHERS UNTIL
PROJECT ACCEPTANCE AND FINAL COMPLETION OCCURS.
6.THE CONTROL OF ENVIRONMENTAL POLLUTION WHICH COULD RESULT FROM CONSTRUCTION OPERATIONS UNDER THIS
CONTRACT REQUIRES CONSIDERATION OF LAND, WATER AND AIR QUALITY AT THE SITE.
7.THE CONTRACTOR AND SUBCONTRACTORS SHALL COMPLY WITH ALL APPLICABLE FEDERAL, STATE AND LOCAL LAWS AND
REGULATIONS CONCERNING ENVIRONMENTAL POLLUTION CONTROL OR ABATEMENT. THE CONTRACTOR SHALL OBTAIN
THE NECESSARY PERMITS AND COMPLY WITH SUCH PERMITS CONCERNING ENVIRONMENTAL PROTECTION.
8.THE OWNER AND THE CONTRACTOR SHALL ESTABLISH THE CRITERIA FOR COMPLIANCE AND ADMINISTRATION OF THE
ENVIRONMENTAL POLLUTION CONTROL PROGRAM PRIOR TO COMMENCEMENT OF WORK.
9.THE OWNER WILL NOTIFY THE CONTRACTOR IN WRITING OF ANY NONCOMPLIANCE WITH THIS SPECIFICATION AND THE
ACTION TO BE TAKEN. THE CONTRACTOR SHALL IMMEDIATELY TAKE CORRECTIVE ACTION.
PROTECTION OF LAND RESOURCES
10.LAND RESOURCES ADJACENT TO THE PROJECT BOUNDARIES SHALL BE PRESERVED IN THEIR PRESENT CONDITION OR
RESTORED TO A NATURAL APPEARANCE PRIOR TO FINAL ACCEPTANCE OF PROJECT.
11.THE CONTRACTOR SHALL NOT INJURE OR DESTROY TREES OR SHRUBS ADJACENT TO THE PROJECT SITE.
CONSTRUCTION ACTIVITIES SHALL BE CONFINED TO THE AREA SHOWN ON THE PLANS.
12.TEMPORARY ROADS, EMBANKMENTS OR EXCAVATIONS SHALL BE RESTORED TO NATURAL GRADE AND SEEDED PRIOR TO
COMPLETION OF CONSTRUCTION. VEGETATION MUST BE ESTABLISHED ON ALL EXPOSED SOILS PRIOR TO FINAL
ACCEPTANCE OF PROJECT.
PROTECTION OF WATER RESOURCES
13.THE CONTRACTOR SHALL NOT ADVERSELY AFFECT THE EXISTING WATER QUALITY WITHIN OR ADJACENT TO THE PROJECT
SITE. NO CONSTRUCTION WASTES OR OTHER HARMFUL MATERIALS WILL BE PERMITTED TO ENTER THESE WATER
RESOURCES.
14.SURFACE DRAINAGE FROM CUTS AND FILLS SHALL BE PROTECTED BY AN EFFECTIVE EROSION AND SEDIMENT CONTROL
PLAN OR SHALL BE GRADED TO CONTROL EROSION WITHIN ACCEPTABLE LIMITS. THESE MEASURES SHALL BE DESIGNED
AND MAINTAINED BY OTHERS AND SHALL BE MAINTAINED UNTIL PERMANENT DRAINAGE AND EROSION CONTROL
FACILITIES ARE COMPLETED.
CONTROL OF AIR POLLUTANTS
15.NO FIRES SHALL BE ALLOWED TO DISPOSE OF DEBRIS.
16.THE CONTRACTOR SHALL MAINTAIN THE PROJECT SITE AND ACCESS ROADS FREE FROM DUST WHICH WOULD CAUSE A
HAZARD OR NUISANCE TO OTHERS. REFER TO JURISDICTIONAL REQUIREMENTS FOR DUST CONTROL MEASURES.
17.THE CONTRACTOR SHALL OBTAIN DUST PERMIT FROM AUTHORITY HAVING JURISDICTION AND PAY ALL ASSOCIATED FEES
PRIOR TO STARTING WORK.
RESTORATION
18.ALL SURFACES NOT SCHEDULED FOR PERMANENT IMPROVEMENTS SUCH AS GRAVEL, PAVEMENT, RIPRAP LININGS, ETC.
SHALL BE PERMANENTLY STABILIZED PER THE EROSION AND SEDIMENT CONTROL DRAWINGS BY OTHERS, PROJECT
COMPLETION SHALL NOT BE ACHIEVED UNTIL ADEQUATE STABILIZATION HAS BEEN ESTABLISHED AND APPROVED BY THE
ENGINEER OF RECORD AND EROSION AND SEDIMENT CONTROL ENGINEER.
PRODUCTS:
FILL
19.ALL PRODUCTS/MATERIALS USED DURING THE CONSTRUCTION OF THESE PLANS SHALL BE SUBMITTED TO THE ENGINEER
OF RECORD FOR APPROVAL PRIOR TO PURCHASING, DELIVERY, AND INSTALLATION.
20.ENGINEERED FILL FOR ALL LOCATIONS OUTSIDE OF THE MOUND IMPROVEMENTS SHALL CONFORM TO FILL
REQUIREMENTS FOUND IN PROJECT GEOTECH REPORT OR GENERAL GUIDELINES SHOWN ON TABLE-1
21.ALL CRUSHED ROCK SPECIFIED (RIPRAP, SURFACING COURSE, ETC.) TO HAVE A MINIMUM SPECIFIC GRAVITY OF 2.6.
22.ENGINEERED FILL FOR ALL LOCATIONS WITHIN THE MOUND IMPROVEMENTS BENEATH THE SEPARATION GEOTEXTILE
SHALL BE CLASSIFIED AS, OR A COMBINATION OF, SC, SM, SW, OR SP (AS DEFINED BY ASTM D2487) WITH A MAXIMUM
PARTICLE SIZE OF ONE QUARTER INCH AND LESS THAN 10% PASSING A NO. 200 SIEVE.
TABLE-1
GEOTEXTILE
23.STABILIZATION (SEPARATION/REINFORCEMENT) GEOSYNTHETIC SHALL BE TENCATE MIRAFI RS380i OR APPROVED EQUAL,
UNLESS NOTED OTHERWISE. EQUIVALENT GEOSYNTHETICS SHALL MEET STRENGTH AND FILTRATION CHARACTERISTICS
OF SPECIFIED PRODUCTS. PROVIDE GEOSYNTHETIC ROLLS WITH SUITABLE WRAPPING FOR PROTECTION AGAINST
MOISTURE, AND EXTENDED ULTRAVIOLET EXPOSURE PRIOR TO PLACEMENT. EACH ROLL SHALL BE LABELED TO PROVIDE
PRODUCT IDENTIFICATION SUFFICIENT FOR INVENTORY AND QUALITY CONTROL PURPOSES. STORE ROLLS IN A MANNER,
WHICH PROTECTS THEM FROM THE ELEMENTS IN ACCORDANCE WITH MANUFACTURER'S REQUIREMENTS. ELEVATE
GEOSYNTHETICS STORED OUTDOORS AND PROTECT WITH WATERPROOF COVER.
24.GEOSYNTHETICS SHALL BE INSTALLED AS INDICATED ON THE PLANS AND OUTLINED HEREIN. THE MATERIALS SHALL BE
INSTALLED IN STRICT ACCORDANCE WITH THE MANUFACTURER'S INSTRUCTIONS INCLUDING, BUT NOT LIMITED TO, SPLICE
LENGTHS/LAP WIDTHS, TENSIONING, AND ORIENTATION. THE GEOSYNTHETICS SHALL BE INSTALLED TO MINIMIZE CUTTING
AND WASTAGE. CARE SHALL BE TAKEN TO NOT RIP THE GEOSYNTHETIC MATERIALS. TEARS SHALL BE COVERED WITH
PIECES OF GEOSYNTHETIC MATERIAL WITH AT LEAST 12 INCHES OF OVERLAP OR PER MANUFACTURER'S SPECIFIED
INSTRUCTIONS. THE GEOSYNTHETIC MATERIALS SHALL NOT REMAIN EXPOSED LONGER THAN 24 HOURS, OR AS
OTHERWISE SPECIFIED IN THE MANUFACTURER'S WRITTEN INSTRUCTIONS.
25.NOTES PRESENTED ABOVE ARE NOT ALL INCLUSIVE AND DO NOT ABSOLVE THE CONTRACTOR FROM INSTALLING
GEOTEXTILE FABRIC PER MANUFACTURERS GUIDELINES.
STORMWATER PIPING
26.MOUND UNDERDRAIN PIPING SHALL BE 6-INCH OR 12-INCH DIA. AS INDICATED ON PLANS AND SHALL CONSIST OF
PERFORATED SMOOTH WALL SCH. 40 PVC PIPE INSTALLED AT A MINIMUM LATERAL SLOPE OF 1.0% TO DAYLIGHT
LOCATIONS AS SHOWN ON PLANS. PERFORATIONS 3/8"-DIA. SHALL BE IN THE BOTTOM HALF OF THE PIPE ORIENTED AT 4-
AND 8-O'CLOCK.
27.UNDERDRAINS SHALL HAVE CLEANOUTS TO GRADE INSTALLED AT ALL UPSLOPE ENDS OF UNDERDRAIN RUNS AND WHERE
BENDS OCCUR.CLEANOUTS SHALL NOT BE LOCATED WITHIN DRIVEPATHS, WALKWAYS, AREAS OF HEAVY FOOT-TRAFFIC,
OR AREAS WHERE THEY MAY POSE AS A TRIP-HAZARD. ALL CLEANOUTS SHALL BE FURNISHED WITH REMOVABLE CAPS OR
SIMILAR MATERIAL.
28.CULVERTS SHALL BE DUAL-WALLED HDPE WITH SMOOTH INTERIOR. CULVERTS LESS THAN 10-INCHES IN DIAMETER SHALL
COMPLY WITH AASHTO M252, TYPE S OR SP. CULVERTS GREATER THAN 10-INCHES IN DIAMETER SHALL COMPLY WITH
AASHTO M294, TYPE S OR SP. CULVERT END SECTIONS, IF SPECIFIED, SHALL BE FLARED AND MATCH THE PIPE MATERIAL
AND STRENGTH.
PROOF-ROLLING
29.PROOF-ROLLING SHALL BE PERFORMED AT AREAS OF PROPOSED FILL PLACEMENT, PROPOSED CUT, PROPOSED
STRUCTURE FOOTPRINTS, PROPOSED ACCESS OR SERVICE ROADS SUBJECT TO VEHICLE LOADING, AND SLAB
SUBGRADES FOR THE PROJECT. PROOF-ROLLING SHALL NOT BE PERFORMED WHERE NOT PRACTICAL OR PERMITTED (I.E.
AREAS ABOVE OR WITHIN 10' OF EXISTING TANKS).
30.PRIOR TO PLACEMENT OF FILL, SUBGRADE SURFACES SHALL BE CLEANED OF DEBRIS, ORGANIC MATTER, MUD, LOOSE
SOIL AND OTHER UNSUITABLE MATERIAL. AFTER THE AREAS OF THE SITE HAVE BEEN STRIPPED AND UNSUITABLE
MATERIALS HAVE BEEN REMOVED, AT-GRADE AREAS, AND AREAS THAT ARE TO RECEIVE FILL SHALL BE PROOF-ROLLED
WITH A LOADED TRI-AXLE DUMP TRUCK, LOADED WATER TRUCK, OR WITH A 10-TON VIBRATORY ROLLER. PROOF-ROLLING
CONSISTS OF APPLYING REPEATED PASSES TO THE SUBGRADE WITH THIS EQUIPMENT. SUBGRADES IN AREAS OF CUT
SHOULD BE SIMILARLY PROOF-ROLLED SUBSEQUENT TO EXCAVATION. THE PROOF-ROLLING OPERATION SHALL BE
PERFORMED UNDER THE OBSERVATION OF THE OWNER'S DESIGNATED REPRESENTATIVE. ANY AREAS WHICH DEFLECT,
RUT, OR PUMP UNDER THE PROOF-ROLLING, AND FAIL TO BE REMEDIED WITH SUCCESSIVE PASSES AS DETERMINED BY
THE OWNER, SHALL BE STABILIZED OR UNDERCUT TO MORE STABLE SOILS DEPENDING ON THE SITE CONDITIONS AT THE
TIME OF CONSTRUCTION. ALL MATERIAL UNDERCUT SHALL BE REPLACED AND COMPACTED WITH AN APPROVED FILL.
SUBGRADE STABILIZATION
31.WET AND UNSTABLE EXPOSED SUBGRADE SOILS, IF ENCOUNTERED, SHALL BE STABILIZED IN LIEU OF UNDERCUTTING
AND SOIL REPLACEMENT WHEN DIRECTED BY THE ENGINEER OF RECORD. STABILIZE THE WET AND UNSTABLE SUBGRADE
WITH A STONE STABILIZATION BLANKET CONSISTING OF STRUCTURAL FILL AS SPECIFIED BY THE GEOTECHNICAL REPORT
PLACED OVER A STABILIZATION GEOSYNTHETIC AS SPECIFIED. THE NECESSARY THICKNESS OF THE STONE STABILIZATION
BLANKET MUST BE DETERMINED IN THE FIELD AT THE TIME OF CONSTRUCTION BY THE ENGINEER OF RECORD, BUT
TYPICAL THICKNESSES RANGE FROM 12 TO 24 INCHES. THE STONE SHALL BE DUMPED IN A STABLE AREA AND THEN
PUSHED OUT OVER THE GEOGRID WITH A LIGHT BULLDOZER. ALTERNATIVELY, THE CONTRACTOR SHALL CONTACT THE
ENGINEER OF RECORD FOR LIME OR CEMENT TREATMENT REQUIREMENTS OF SUBGRADES FOR STABILIZATION.
PREPARATION
32.AFTER PROOF-ROLLING AND BEFORE PLACING FILL MATERIAL, THE SUBGRADE SOIL SURFACE SHALL BE SCARIFIED TO A
MINIMUM DEPTH OF 8 INCHES, WETTED OR DRIED TO PRODUCE 1-3% HIGHER MOISTURE CONTENT THAN OPTIMUM
MOISTURE CONTENT, AND RECOMPACTED TO AT LEAST 95% OF M.D.D. PER ASTM D-1557 FOR GRANULAR SOILS OR PER
ASTM D-698 FOR COHESIVE, FINE-GRAINED SOILS.
CRACK CONTROL JOINTS
33.SAW CUT CONTROL JOINTS 1/8" TO 1/4" WIDE AS SOON AS PRACTICAL TO AVOID RAVELING EDGE.
34.CONTROL JOINTS TO BE CUT TO A QUARTER OF THE PLACED CONCRETE THICKNESS IN DEPTH.
35.SPACING OF JOINTS SHALL BE BETWEEN 24 TO 30 TIMES THE PLACED CONCRETE THICKNESS. THE ASPECT RATIO FOR
UNREINFORCED PANELS OR UNLESS NOTED OTHERWISE SHALL BE A MAXIMUM OF 1.5 TO 1. IRREGULAR SHAPES SUCH AS
"L'S" OR "T'S" SHALL BE AVOIDED.
SLOPED SURFACES
36.PLACEMENT OF FILL AGAINST SLOPED SURFACES STEEPER THAN 3 HORIZONTAL-TO-1 VERTICAL SHALL BE STEPPED OR
BENCHED, INTO COMPETENT SUBGRADE MATERIAL AS DETERMINED BY THE ONSITE GEOTECHNICAL ENGINEER SCARIFIED
AND COMPACTED AS DESCRIBED ON THIS SHEET.
37.REFER TO PLAN FOR INSTALLATION OF RIPRAP RUNDOWNS ON SLOPES.
PLACEMENT
38.FILL SHALL NOT BE PLACED UNTIL THE EXCAVATION AND SUBGRADE PREPARATION (OR PORTIONS THEREOF) HAVE BEEN
COMPLETED, INSPECTED, AND APPROVED BY THE ENGINEER. FILL SHALL BE PLACED ON A SCARIFIED AND RECOMPACTED
SURFACE IN HORIZONTAL LIFTS NOT EXCEEDING THE LIFT THICKNESS AS INDICATED IN THE TABLE BELOW AND THEN
COMPACTED TO RELATIVE COMPACTION AS NOTED IN THE TABLE TO BRING THE AREA UP TO GRADE ELEVATION.
MATERIALS PLACED BY DUMPING IN PILES OR WINDROWS SHALL BE SPREAD UNIFORMLY BEFORE BEING COMPACTED. NO
MATERIAL SHALL BE PLACED ON SURFACES THAT ARE MUDDY, FROZEN OR CONTAIN FROST.
39.MAINTAIN POSITIVE DRAINAGE ACROSS THE SITE THROUGHOUT THE PROJECT.
COMPACTION
40.COMPACTION OUTSIDE OF MOUNDING LIMITS, DEFINED AS 10' MINIMUM AWAY FROM EXISTING TANKS SHALL BE
PERFORMED BY ROLLING WITH APPROVED TAMPING ROLLERS, PNEUMATIC-TIRED ROLLERS, THREE-WHEEL POWER
ROLLERS OR OTHER APPROVED EQUIPMENT SUITABLE FOR THE SOIL AND COMPACTION SPECIFIED. MATERIAL SHALL BE
MOISTENED OR AERATED AS NECESSARY TO PROVIDE THE MOISTURE CONTENT THAT WILL READILY FACILITATE
OBTAINING THE SPECIFIED COMPACTION WITH THE EQUIPMENT USED. EACH LAYER SHALL BE COMPACTED TO NOT LESS
THAN THE PERCENTAGE OF MAXIMUM DENSITY AND SHOULD BE MOISTURE CONDITIONED AS NOTED BELOW.
*INCREASE RELATIVE COMPACTION TO 98%(COHESIVE) RESPECTIVELY IN AREAS
SCHEDULED FOR REPETITIVE WHEEL LOADING OR FOUNDATIONS.
41.LARGE EQUIPMENT IS PROHIBITED WITHIN 10' OF THE EXISTING TANKS AND COMPACTION ON THE MOUND SURFACE OR
ANY LOCATION WITHIN 10' OF THE EXISTING TANKS THAT IS ALSO AT OR ABOVE THE INVERT OF THE TANKS SHALL BE
PERFORMED WITH OWNER- AND ENGINEER-EXPLICITLY APPROVED SMALL EQUIPMENT OR BY HAND. CONTRACTOR SHALL
SUBMIT WORK PLAN TO THE OWNER AND ENGINEER FOR EXPLICIT APPROVAL PRIOR TO COMMENCING BACKFILLING AND
COMPACTION ACTIVITIES.
42.ALL ANGULAR ROCK SPECIFIED ON PLANS (RIPRAP, CRUSHED SURFACING ROCK) SHALL BE PLACED AND COMPACTED IN A
MANNER TO PROMOTE INTERLOCKING AND STABILITY OF MATERIAL THROUGH VIBRATORY COMPACTION, HAND
PLACEMENT, OR A COMBINATION OF THE TWO. ANY OTHER METHOD SHALL BE SUBMITTED WITHIN THE WORK PLAN FOR
OWNER- AND ENGINEER-APPROVAL.
43.ELEVATIONS AND CONTOUR LINES SHOWN ON THE GRADING PLANS ARE THE FINAL GRADE ELEVATIONS INCLUDING
GRAVEL SURFACING, WHERE APPLICABLE.
44.THE CONTRACTOR SHALL NOT CHANGE OR DEVIATE FROM THE PLANS WITHOUT FIRST OBTAINING WRITTEN APPROVAL
FROM THE OWNER AND ENGINEER OF RECORD.
45.THE CONTRACTOR SHALL BE RESPONSIBLE FOR JOB SITE SAFETY OF HIS OWN PERSONNEL, ALL VISITORS TO THE SITE
AND THE GENERAL PUBLIC.
46.THE CONTRACTOR SHALL REPAIR ALL EXISTING DISTURBED AREAS, FENCES, WALLS, SHEDS OR OTHER STRUCTURES
DAMAGED DURING CONSTRUCTION ACTIVITIES TO EQUAL OR BETTER CONDITI0NS.
47.CONTRACTOR SHALL MAINTAIN A SET OF AS-BUILT DRAWINGS WITH ALL CHANGES IDENTIFIED.
48.EROSION CONTROL PLANS ARE BY OTHERS. ALL PERIMETER EROSION CONTROL MEASURES SHALL BE INSTALLED AND
FUNCTIONAL PRIOR TO ANY OTHER EARTH DISTURBING ACTIVITY. ALL OTHER STRUCTURAL EROSION CONTROL MEASURES
SHALL BE IMPLEMENTED AS SOON AS THE CONSTRUCTION ACTIVITIES, AROUND WHICH THEY ARE BASED, COMMENCE.
49.THERE SHALL BE NO EARTH DISTURBING ACTIVITY OUTSIDE THE LIMITS DESIGNATED ON THESE PLANS.
50.CONTRACTOR MUST CONTACT THE APPLICABLE BELOW-GROUND UTILITY LOCATOR AT LEAST 3 BUSINESS DAYS PRIOR TO
EXCAVATION AS REQUIRED BY LAW.
51.ALL AREAS REQUIRING NEW CUT AND FILL OPERATIONS SHALL BE GRUBBED TO REMOVE ANY GRASS, ROOTS, ORGANIC
MATERIAL, EXISTING FILL, OR OTHER DEBRIS. STRIPPED MATERIAL SHALL BE DISPOSED OF OUTSIDE THE SITE AT AN
APPROPRIATE DISPOSAL FACILITY.
52.THE FINISHED GRADE SURFACE AND DRAINAGE PATTERN SHALL ROUGHLY MAINTAIN THE EXISTING NATURAL GRADE
EXCEPT WHERE INDICATED ON THE GRADING PLAN.
53.CONTRACTOR SHALL REPORT ANY TANK COATING DAMAGE TO OWNER AND ENGINEER WITHIN 30 MINUTES OF THE
INCIDENT.
COMPACTION TESTING REQUIREMENTS:
54.THE ON-SITE FIELD GEOTECHNICAL ENGINEER SHALL HAVE AUTHORITY TO MODIFY THE TESTING FREQUENCIES BELOW
AS FIELD CONDITIONS WARRANT. VALUES LISTED BELOW ARE MINIMUM CRITERIA RECOMMENDED BY CAMPOS EPC.
55.COMPACTION TESTING FREQUENCIES FOR ALL ROADS TO BE ONE (1) TEST PER 12 FT OF WIDTH PER 500 FT OF LENGTH,
OR FRACTION THEREOF PER 8" LIFT.
56.COMPACTION TESTING FREQUENCIES FOR ALL AREAS SCHEDULED FOR FOUNDATIONS OR ANY OTHER ITEM SENSITIVE TO
LOCALIZED SETTLEMENT TO BE ONE (1) TEST PER 500 SF OR FRACTION THEREOF PER 8" LIFT.
57.COMPACTION TESTING FREQUENCIES FOR ALL FILL EMBANKMENTS TO BE ONE (1) TEST PER 1,000 SF OR FRACTION
THEREOF PER 8" LIFT.
58.COMPACTION TESTING FREQUENCIES FOR ALL REMAINING AREAS (NOT INCLUDING ITEMS 38 THRU 40) TO BE ONE (1)
TEST PER 2,000 SF, OR FRACTION THEREOF PER 8" LIFT.
INSPECTION
59.ALL REQUIRED INSPECTIONS SHALL BE PERFORMED, RECORDED, AND APPROVED PRIOR TO PROCEEDING TO
SUBSEQUENT TASK. INSPECTIONS SHALL BE PERFORMED AT A MINIMUM FOR SUBGRADE PREPARATION, COMPACTION,
BACKFILL, FINISHED GRADES OF ALL FEATURES AND TEMPORARY AND PERMANENT DRAINAGE BMP'S. INSPECTIONS ARE
PERMITTED TO BE PERFORMED BY A THIRD PARTY PROVIDED INSPECTION REPORTS ARE SUBMITTED TO THE ENGINEER
OF RECORD FOR APPROVAL PRIOR TO ACCEPTANCE.
GRADATION OF FILL
SIEVE % PASSING
3 INCH 100
3/4 INCH 70-100
NO. 200 10
PLASTICITY
LIQUID LIMIT (LL)PLASTICITY INDEX (PI)
<35 <12
OTHER REQUIREMENTS
ORGANIC CONTENT NO ORGANICS
EXPANSIVE POTENTIAL (EI)<20
SOLUBLE SULFATES <2,000 PPM
SOLUBLE CHLORIDE <300 PPM
RESISTIVITY >2,000 *CM
COMPACTION CRITERIA TABLE
MAXIMUM LIFT THICKNESS 8 INCHES
COMPACTION 95% OF M.D.D. PER ASTM D1557 (GRANULAR) 95% OF M.D.D. PER ASTM D698 (COHESIVE)*
MOISTURE CONTENT ±3% FROM OPTIMUM MOISTURE CONTENT
PROFESSIONAL ENGINEER
I hereby certify that this plan, specification, or
report was prepared by me or under my direct
supervision and that I am a duly Licensed
Professional Engineer under the Laws of the
state of Minnesota.
Signature:
Typed or Printed Name: Isaac Francis Cohrs
Date: License Number: 5910605/24/2024
Page 46 of 68
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760
770
780
790
800
812
825
820
815
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815
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0 82682883283483
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808810SEE SHEET 4301SEE SHEET 4301SEE SHEET 4301SEE SHEET 4301SEE SHEET 4301
SEE SHEET 4301
PROPERTY BOUNDARY PROPERTY BOUNDARYPROPERTY BOUNDARYPROPERTY BOUNDARYPROPERTY BOUNDARYPROPERTY BOUNDARY(E) ASPHALT
(E) FENCE
(P) CONTAINMENT BASIN & 100-YR
DETENTION POND
(E) BOILER BUILDING
(E) ENTRANCE LOCATION
W/ ELECTRIC GATE
(E) COMPRESSOR BUILDING
(E) VAPORIZER BUILDING
(E) CULVERT OUTFALL TO BE
REMOVED & REPLACED
(E) CULVERT OUTFALL TO BE
REMOVED & REPLACED
(E) VEGETATION
(E) LPG STORAGE
TANKS (TYP.)
(P) ROCK-LINED RUNDOWN
TO TOE OF SLOPE
(E) DIRT DRIVE
(E) CONTROL ROOM
(E) PLC BUILDING
(E) STORM AND SANITARY
IN 30' WIDE EASEMENT
(E) SANITARY IN 30'
WIDE EASEMENT(E) ASPHALT(E) TRUCK STATIONS
(P) CULVERT @ REPAIRED
ASPHALT ACCESS
(P) POND OUTLET PIPING
(P) POND CONCRETE
OUTLET STRUCTURE
(P) CONCRETE FOREBAY
(P) POND BOTTOM VEHICLE ACCESS
POND OUTLET PIPING
(P) CONCRETE FOREBAY
(P) ROCK-LINED CULVERT
OUTLET PROTECTION
ENERGY DISSIPATION POOL
SEE SHEET 4301(E) ASPHALT
(E) ASPHALT
PROPERTY BOUNDARY
(P) CONCRETE FOREBAY
815820790780770770780790800CONTROL
N: 1022497.517'
E: 2849480.456'
POINT NO: 412
ELEV.: 815.062'
CONTROL
N: 1022682.654'
E: 2849488.683'
POINT NO: 413
ELEV.: 815.254'
(P) 252 LF- CONCRETE
DRAINAGE PAN
(P) 83 LF- NEW FENCING
(P) 105 LF- CONCRETE
DRAINAGE PAN
(P) 166 LF- CONCRETE
DRAINAGE PAN
(E) MAN GATE
(E) MAN GATE
(E) MAN GATE
(E) VEHICLE GATE
(E) VEHICLE GATE
(P) FIREWATER MAIN
(REF: 2000 SERIES)
(P) GRAVEL DRIVE
(P) GRAVEL DRIVE
(P) GRAVEL DRIVE(P) GRAVEL DRIVE!!! (E) SALES GAS LINE IN VICINITY OF
PROPOSED CULVERT WORK SHALL BE
IDENTIFIED AND LOCATED PRIOR TO
CONSTRUCTION. EOR SHALL BE NOTIFIED
OF IT'S DEPTH AND LOCATION!!!
(P) HYDRANT HEADER
(REF: 2000 SERIES)
(E) DIRT DRIVE
(P) HYDRANT (TYP.)
(REF: 2000 SERIES)
SERVICE CENTER:
CAD FILE NAME:
BY
DRAWINGREVISIONS
NO.DESCRIPTION DATE
DESIGNED BY:
APPROVED BY:
CHECKED BY:
DRAWN BY:
TYPE:
LOCATION:
DIVISION:CITY/COUNTY :IN SERVICE DATE:
HISTORY DATE
FLOC:
®
SIBLEY PROPANE PLANT
GRADING & DRAINAGE SITE PLAN 4300
2
D1_4300_Sibley Mounding.dwg
NORTHERN MENDOTA HEIGHTS / DAKOTA FACILITY
UNIT 00
GU-SPG
NORTHERN STATES POWER COMPANY
MR 05/24/2024
IFC 05/24/2024
IFC 05/24/2024
0 ISSUED FOR CONSTRUCTION IFC 06/30/2022
1 ISSUED FOR CONSTRUCTION AJL 05/12/2023
2 ISSUED FOR CONSTRUCTION MR 05/24/2024
>>>
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LEGEND:
EXISTING MAJOR CONTOURS
EXISTING MINOR CONTOURS
PROPOSED MAJOR CONTOURS
PROPOSED MINOR CONTOURS
SURFACE BOUNDARY
PROPERTY LINE
PROPOSED FLOW LINE
PROPOSED FIREWATER MAIN
PROPOSED HYDRANT HEADER
EXISTING FENCE TO BE REMOVED
PROPOSED FENCE
EXISTING FENCE
EXISTING GAS LINE
EXISTING OVERHEAD UTILITY
EXISTING SANITARY SEWER
EXISTING STORM SEWER
PROPOSED CULVERT/STORM
SEWER
PROPOSED UNDERDRAIN
GRAVEL (INCLUDES SMALL
DIA. RIPRAP <6")
CONCRETE
LARGE DIA. RIPRAP (>6")
PROPOSED ASPHALT
G
8460
8466
8460
OH
SS
ST
x x x x x
G
OH
SS
ST
x x x x x
8466
W W W
NOTE:
1.DRAWING REVISED TO REFLECT TANK MOUNDING SCOPE.
PROFESSIONAL ENGINEER
I hereby certify that this plan, specification, or
report was prepared by me or under my direct
supervision and that I am a duly Licensed
Professional Engineer under the Laws of the
state of Minnesota.
Signature:
Typed or Printed Name: Isaac Francis Cohrs
Date: License Number: 5910605/24/2024
Page 47 of 68
W W
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W W
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OHOHOH OH OH OH OHOHOHOHOHOHOHOHOHOHOHOHGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGG
G G GSTSTSSSSSS
SSSSSSSSS
S
S
S
S
S
S
S
S
S
S
S
S
S
S
S
S
S SSSSSSSSSSSSSSSSSSS
S
S
S
SS SSSSSSSSSSSSSSxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx x x x xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx>>>>>>>>>>>>>>>>>>>>>>>20.0'
81
5
81
5 820815815815
815
820
825
825830
830
815
820
825 825820815820815807
810
805
740
7
4
5 7507
5
5 760765770775780785790795800805810810
815-45.1%830815820825825820815810
825
815825820 81
5
810
820 815810
815
820
825-2:1-2:1-3:1
-2:1
-2:1
-2:1-2:1 -3:1-3:1-3:1
-4:1-4:1-4:1
-9.2%8251
4302
NORTHWEST 2
4303
NORTHEAST
4
4305
SOUTHEAST3
4304
SOUTHWEST
810(P) 110 LF - 18" DIA. HDPE W/ SMOOTH INTERIOR POND OUTLET PIPING
@ -1.00% MIN. WITH 18" COVER. VERIFY OUTLET LOCATION OF EXISTING
CULVERT IN FIELD & PROVIDE FLARED END SECTIONS
153 LF- 18" DIA. SMOOTH-WALLED
INTERIOR HDPE @ -1.0%
(P) CONCRETE POND OUTLET W/ MICROPOOL
100-YR DETENTION POND
W/ IMPERVIOUS LINER
(P) 8" DEEP CONCRETE
FOREBAY
(P) 25' X 11' CONCRETE FOREBAY W/
6" CURB HEIGHT ALONG WEST END
V NOTCH INV.: 805.29'
TOP OF CURB: 805.79'
(P) 210' LONG X 10' WIDE @ BOT. X 1' DEEP
W/ 3:1 SIDE SLOPES RIPRAP-LINED
RUNDOWN & END SECTION. 18" D50 RIPRAP
36" THICK LAYER OVER RIPRAP FABRIC OR
SEPARATION & REINFORCEMENT
GEOTEXTILE & REPAIRED SUBGRADE
REMOVE EXISTING
CONCRETE RUNDOWN
DENOTES SURFACE
BOUNDARY (TYP.)
DENOTES EXISTING TANK
FOUNDATION (TYP.)
DENOTES EXISTING TANK
FOUNDATION (TYP.)
(E) STAIRWAY
(E) SANITARY SEWER
MATCH EXISTING GRADES @ OUTSIDE
OF RIPRAP-LINED RUNDOWN
20' LONG END SECTION @ 10%
OR LESS LONGITUDINAL SLOPE
CULVERT OUTFALL LOCATION CURRENTLY
UNKNOWN. VERIFY IN FIELD & CONSULT W/ E.O.R.
(E) CULVERT TO BE
REMOVED & REPLACED
ASPHALT TIE-IN TO (P) TRENCH (TYP.)
(P) 4' PERIMETER AROUND FOREBAY & CULVERT INLET
PROTECTION- 9" D50 SOIL-FILLED RIPRAP IN 18" THICK LAYER OVER
RIPRAP FABRIC OR SEPARATION & REINFORCEMENT GEOTEXTILE
(P) 30" WIDE CONCRETE TRENCH
W/ 30 DEG. BENDS (TYP.)
(P) 18' LONG X 12' WIDE @ BOT. X 1' DEEP W/ 3:1 SIDE SLOPES
TO EXISTING RIPRAP-LINED CULVERT OUTLET PROTECTION
ENERGY DISSIPATION POOL. 9" D50 RIPRAP IN 18" THICK LAYER
OVER RIPRAP FABRIC OR SEPARATION & REINFORCEMENT
GEOTEXTILE & REPAIRED SUBGRADE
ENSURE FUNCTIONALITY OF EXISTING
BERM @ TOP OF CUT SLOPE
EXISTING POLE-MOUNTED TRANSFORMER (P) 12' WIDE ALL-WEATHER
POND BOT. VEHICLE ACCESS
(P) 50 LF - 18" DIA. HDPE CULVERT @
-1.8% SLOPE WITH MIN. 12" COVER.
PROVIDE STD. FLARED END SECTIONS
1,000 SF - 9" D50 RIPRAP INLET
PROTECTION IN 15" THICK LAYER
OVER SEPARATION &
REINFORCEMENT GEOTEXTILE
PROTECT EXISTING
POWER POLE IN PLACE
PROTECT EXISTING
POWER POLE IN PLACE
DENOTES SURFACE
BOUNDARY (TYP.)
DENOTES SURFACE BOUNDARY (TYP.)
ENSURE FUNCTIONALITY OF EXISTING
BERM @ TOP OF CUT SLOPE
(P) 8" DEEP CONCRETE
FOREBAY
BEGIN ASPHALT
SURFACED ACCESS ROAD
BEGIN 1'-6" DEEP TRENCH & GRATING
END 1' DEEP TRENCH
END TRENCH BEGIN FOREBAY
BEGIN ASPHALT
SURFACED ACCESS ROAD
BEGIN 1' DEEP TRENCH
END 1'-6" DEEP TRENCH & GRATING
(P) 166 LF- CONCRETE
DRAINAGE PAN
(P) 105 LF- CONCRETE
DRAINAGE PAN
17.9'
18.0'35.3'(P) 83 LF- NEW FENCING
28.0'21.5'(P) 252 LF- CONCRETE
DRAINAGE PAN
CONTROL
N: 1022497.517'
E: 2849480.456'
POINT NO: 412
ELEV.: 815.062'
CONTROL
N: 1022682.654'
E: 2849488.683'
POINT NO: 413
ELEV.: 815.254'
17.6'
36.0'
(P) 81 LF- 6' MAX. HEIGHT
RETAINING WALL
(REF: STRUCTURAL
SHEETS FOR DETAILS)
(P) FIREWATER MAIN
REF: 2000 SERIES
44 LF- 18" DIA. SMOOTH-WALLED
INTERIOR HDPE @ -1.0%
(P) MANHOLE
(SDMH 3)
DENOTES DIMENSION FROM TOE
OF SLOPE TO EXISTING FENCE
(P) MANHOLE
(SDMH 2)
DENOTES DIMENSION
FROM TOE OF SLOPE
TO EXISTING FENCE
DENOTES DIMENSION
FROM EDGE OF CONCRETE
PAN TO EXISTING FENCE
(P) MANHOLE
(SDMH 1)
166 LF- 18" DIA. SMOOTH-WALLED
INTERIOR HDPE @ -1.0%
121 LF- 18" DIA. SMOOTH-WALLED
INTERIOR HDPE @ -1.0%
DENOTES DIMENSION
FROM POND PERIMETER
TO EXISTING FENCE
DENOTES DIMENSION FROM
TOE OF SLOPE TO EDGE OF
CONCRETE PAN
DENOTES PROPOSED
RESURFACING AND MINOR
REGRADING (TYP.)
(P) 12" PERF. UNDERDRAIN
TO DAYLIGHT WEST OF
WALL IN FACE OF SLOPE
TIE-IN GRADES AT LOD
AND SLOPE UP TO WALL
AT 3% MINIMUM.
(P) HYDRANT HEADER
REF: 2000 SERIES
APPROXIMATE LOCATION OF
DAYLIGHT FOR (P) 18" POND
OUTLET. PROVIDE FLARED END.
(P) HYDRANT (TYP.)
REF: 2000 SERIES
SERVICE CENTER:
CAD FILE NAME:
BY
DRAWINGREVISIONS
NO.DESCRIPTION DATE
DESIGNED BY:
APPROVED BY:
CHECKED BY:
DRAWN BY:
TYPE:
LOCATION:
DIVISION:CITY/COUNTY :IN SERVICE DATE:
HISTORY DATE
FLOC:
®
SIBLEY PROPANE PLANT
GRADING & DRAINAGE KEY PLAN 4301
2
D1_4301_Sibley Mounding.dwg
NORTHERN MENDOTA HEIGHTS / DAKOTA FACILITY
UNIT 00
GU-SPG
NORTHERN STATES POWER COMPANY
MR 05/24/2024
IFC 05/24/2024
IFC 05/24/2024
0 ISSUED FOR CONSTRUCTION IFC 06/30/2022
1 ISSUED FOR CONSTRUCTION AJL 05/12/2023
2 ISSUED FOR CONSTRUCTION- NOTE11 MR 05/24/2024
>>>
W W
LEGEND:
EXISTING MAJOR CONTOURS
EXISTING MINOR CONTOURS
PROPOSED MAJOR CONTOURS
PROPOSED MINOR CONTOURS
SURFACE BOUNDARY
PROPERTY LINE
PROPOSED FLOW LINE
PROPOSED FIREWATER MAIN
PROPOSED HYDRANT HEADER
EXISTING FENCE TO BE REMOVED
PROPOSED FENCE
G
8460
8466
8460
OH
SS
ST
G
OH
SS
ST
NOTES:
1.ALL COORDINATES BASED ON NAD83 MINNESOTA STATE PLANES, SOUTH ZONE.
2.TOPOGRAPHY SHOWN INSIDE FENCE IS FROM LIDAR SURVEY PERFORMED BY CEPC IN 2021. TOPOGRAPHY
OUTSIDE FENCE LIMITS IS FROM MN GIS ELEVATION DATA.
3.AREAS OF DISTURBANCE: TOTAL AREA OF DISTURBANCE IS 4.97 ACRES
4.ALL PROPOSED SURFACING DEPICTED AS GRAVEL OUTSIDE OF PROPOSED POND LIMITS AND MOUND
SURFACE OR SLOPES TO HAVE A 2" LAYER OF VIBRATORY COMPACTED CLEAN 3/4" CRUSHED
STONE/GRAVEL OVER A 4" MIN. LAYER OF AGGREGATE BASE COURSE MECHANICALLY COMPACTED TO 95%
OF M.D.D. PER ASTM D698 OVER TENCATE MIRAFI RS380i OR E.O.R. APPROVED EQUAL.
5.ALL PROPOSED SURFACING DEPICTED AS GRAVEL ON THE MOUND SURFACE, SLOPES, OR POND (SEE NOTE
6) SHALL BE 3" D50 RIPRAP IN 6" THICK LAYER OVER TENCATE MIRAFI RS380I OR E.O.R. APPROVED EQUAL.
6.PROVIDE IMPERVIOUS LINING BENEATH 3" D50 RIPRAP & SEPARATION/REINFORCEMENT GEOTEXTILE
WITHIN POND LIMITS. LINING TO BE HDPE (60 MIL MIN. THICKNESS, SMOOTH, BLACK, 108 LB MIN. PUNCTURE
RESISTANCE PER ASTM D4833). INSTALL PER USDA CONSTRUCTION SPECIFICATION 202.
7.FOLLOWING ROUGH GRADING OPERATIONS AND PRIOR TO GEOTEXTILE INSTALLATION, CUT PERFORATED
UNDERDRAIN SYSTEM TRENCHES, 18" WIDE INTO MOUND SURFACE AND ALONG WESTERN FENCE IN
LOCATIONS DEPICTED. INSTALL GEOTEXTILE SEPARATION LINER ON MOUND SURFACE AND WITHIN
TRENCHES IN CONTINUOUS LAYER. INSTALL CRUSHED ROCK TRENCH BACKFILL TO MATCH SURFACING
ROCK WITH 6" MIN. COVER AT HIGHEST LOCATIONS. PROVIDE -1% MIN. SLOPE TO DAYLIGHT.
8.ALL CONCRETE ON-SITE TO BE 4,500 PSI MIN. UNLESS NOTED OTHERWISE.
9.TOP OF MOUND ELEVATIONS DEPICTED ARE BASED ON 12 INCH MINIMUM SOIL COVER OVER EXISTING
TANKS. VERIFY IN FIELD, NOTIFY ENGINEER OF RECORD OF DISCREPANCIES.
10.EARTHWORK CALCULATIONS:
a.ASSUMPTIONS:
·EXISTING SURFACING ONSITE IS ASSUMED TO BE WEATHERED, MIXED WITH NATIVE FINES, AND IS NOT
APPROVED FOR RE-USE AS SURFACING MATERIAL. BUT MAY BE RE-USED AS ENGINEERED FILL AS
APPROVED BY THE ONSITE GEOTECHNICAL ENGINEER.
·VOLUMES NOT MODIFIED FOR SHRINKAGE, SWELLING, NOR COMPACTION OF SOIL.
x x x x x
8466
PROPOSED CULVERT/STORM SEWER
PROPOSED UNDERDRAIN
GRAVEL (INCLUDES SMALL
DIA. RIPRAP <6")
CONCRETE
LARGE DIA. RIPRAP (>6")
PROPOSED ASPHALT
b.SOIL QUANTITIES:
·AGGREGATE BASE COURSE............................................................................................................ 500 C.Y.
·3/4" CRUSHED STONE........................................................................................................................ 400 C.Y.
·3" D50 RIPRAP ................................................................................................................................. 2,900 C.Y.
·9" D50 RIPRAP .................................................................................................................................... 365 C.Y.
·18" D50 RIPRAP .................................................................................................................................. 400 C.Y.
·ENGINEERED FILL .......................................................................................................................... 37,560 C.Y.
c.OTHER MATERIAL QUANTITIES:
·CONCRETE (FOREBAYS / OUTLET STRUCTURE / DRAINAGE PAN)........................................... AS REQ'D
·3/8" STEEL ORIFICE PLATE...................................................................................................................... 1 EA.
·NEOPRENE GASKET......................................................................................................................... AS REQ'D
·STAINLESS STEEL WATER QUALITY SCREEN...................................................................................... 1 EA.
·CULVERT STANDARD FLARED END SECTIONS...................................................................................15 EA.
·SEPARATION & REINFORCEMENT GEOTEXTILE........................................................................ 16,500 S.Y.
·IMPERVIOUS POND LINING ..............................................................................................................1,760 S.Y.
·STATION FENCING................................................................................................................................. 83 L.F.
·6" DIA. SCH. 40 SMOOTH WALL PVC PIPING WITH 3/8" PERFORATIONS.....................................2,895 L.F.
·6" DIA. PVC CLEANOUTS...................................................................................................................AS REQ'D
·12" DIA. SCH. 40 SMOOTH WALL PVC PIPING WITH 3/8" PERFORATIONS...................................1,178 L.F.
·12" DIA. PVC CLEANOUTS................................................................................................................ AS REQ'D
·8" DIA. HDPE W/ SMOOTH INTERIOR PIPING .................................................................................... 242 L.F.
·12" DIA. HDPE W/ SMOOTH INTERIOR PIPING .................................................................................... 91 L.F.
·18" DIA. HDPE W/ SMOOTH INTERIOR PIPING....................................................................................644 L.F.
·NYLOPLAST 36" DIAMETER MANHOLE W/ SOLID COVER ................................................................. 3 EA.
d.MODEL VOLUMES
·MODEL CUT VOLUME ........................................................................................................................2,700 C.Y.
·MODEL FILL VOLUME .................................................................................................................... 44,825 C.Y.
·MODEL NET (FILL) ........................................................................................................................... 42,125 C.Y.
e.SUMMARY
·TOTAL EXPORT........................................................................................................................................ 0 C.Y.
·TOTAL IMPORT................................................................................................................................ 42,125 C.Y.
AGGREGATE BASE COURSE............................................................................................... 500 C.Y.
3/4" CRUSHED STONE.......................................................................................................... 400 C.Y.
3" D50 RIPRAP ...................................................................................................................... 2,900 C.Y.
9" D50 RIPRAP ......................................................................................................................... 365 C.Y.
18" D50 RIPRAP ....................................................................................................................... 400 C.Y.
ENGINEERED FILL ............................................................................................................. 37,560 C.Y.
EXAMPLE: MODEL CUT - MODEL FILL + TOTAL IMPORT = ADDITIONAL IMPORT (NEG)
OR LEFTOVER USABLE CUT (POS)
11. DRAWING REVISED TO REFLECT TANK MOUNDING SCOPE.
EXISTING FENCE
EXISTING GAS LINE
EXISTING OVERHEAD UTILITY
EXISTING SANITARY SEWER
EXISTING STORM SEWER
W W W
x x x x x
PROFESSIONAL ENGINEER
I hereby certify that this plan, specification, or
report was prepared by me or under my direct
supervision and that I am a duly Licensed
Professional Engineer under the Laws of the
state of Minnesota.
Signature:
Typed or Printed Name: Isaac Francis Cohrs
Date: License Number: 5910605/24/2024
Page 48 of 68
GGGGGGGGGGG G G G G G G G
GGGGGGGGGGG G G G G G G GGGGGGGGG
GSTSTST
SSSSSS
S
S
S
S
S
S
S
S
S
S
S
S
S
S
S
S SSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx806
807
808
815820825-2:1-3:1
(P) 110 LF - 18" DIA. HDPE W/ SMOOTH INTERIOR POND OUTLET PIPING
@ -1.00% MIN. WITH 18" COVER. VERIFY OUTLET LOCATION OF EXISTING
CULVERT IN FIELD & PROVIDE FLARED END SECTIONS
(P) 25' X 11' CONCRETE FOREBAY W/ 6"
CURB HEIGHT ALONG WEST END.
V NOTCH INV.: 805.29'
TOP OF CURB: 805.79'
(E) CULVERT TO BE
REMOVED & REPLACED
(P) 4' PERIMETER AROUND FOREBAY & CULVERT INLET
PROTECTION- 9" D50 SOIL-FILLED RIPRAP IN 18" THICK LAYER OVER
RIPRAP FABRIC OR SEPARATION & REINFORCEMENT GEOTEXTILE(P) 18' LONG X 12' WIDE @ BOT. X 1' DEEP W/ 3:1 SIDE SLOPES
TO EXISTING RIPRAP-LINED CULVERT OUTLET PROTECTION
ENERGY DISSIPATION POOL. 9" D50 RIPRAP IN 18" THICK
LAYER OVER RIPRAP FABRIC OR SEPARATION &
REINFORCEMENT GEOTEXTILE & REPAIRED SUBGRADE.
REMOVE TREES AS REQUIRED TO INSTALL
THE CULVERT AND DISSIPATION POOL
DENOTES SURFACE BOUNDARY (TYP.)
END TRENCH BEGIN FOREBAY
N: 1022887.53'
E: 2849553.50'
PG: 827.13'
EG: 815.31'
N: 1022901.70'
E: 2849480.23'
PG: 814.93'
EG: 814.98'
CULVERT OUTFALL LOCATION CURRENTLY
UNKNOWN. VERIFY IN FIELD & CONSULT W/ E.O.R.
N: 1022968.11'
E: 2849451.24'
EG: 802.68'
N: 1022944.42'
E: 2849561.24'
INV.: 805.15'
EG: 805.37'
FLOWLINE
N: 1022944.06'
E: 2849644.66'
PG: 805.67'
EG: 806.19'N: 1022901.60'
E: 2849521.37'
PG: 815.71'
EG: 816.08'
N: 1022925.52'
E: 2849671.59'
TOW: 809.00'
EG: 808.97'
N: 1022916.47'
E: 2849671.53'
TOW: 814.92'
EG: 811.07'
FL/ BEGIN 1' DEEP TRENCH
N: 1022948.55'
E: 2849652.51'
PG: 805.72'
EG: 806.83'
FL/ END 1'-6" DEEP TRENCH & GRATING
N: 1022950.53'
E: 2849655.99'
PG: 805.74'
EG: 806.92'
ASPHALT TIE-IN TO (P) TRENCH (TYP.)
FLOWLINE
N: 1022958.55'
E: 2849670.04'
PG: 805.82'
EG: 807.29'
815 815815TOC EL :
827.13'
TOC EL :
827.13'
0.0%
0.0%
0.0%
0.0%
0.0%
0.0%-6:1FLOWLINE GRADES (TYP.)
PG: 826.87'
EG: 814.84'
12"
FLOWLINE GRADES (TYP.)
PG: 826.88'
EG: 814.93'
20 LF-12" DIA. HDPE
CULVERT @ -0.80% SLOPE
N: 1022795.69'
E: 2849673.96'
PG: 825.55'
INV.: 825.05'
-0.5%-1.5%-1.5%-1.5%-1.6%-7.2%TOC EL :
827.13'
TOC EL :
827.13'
TOC EL :
827.13'
FLOWLINE GRADES (TYP.)
PG: 826.50'
INV.: 826.00'
FLOWLINE GRADES (TYP.)
PG: 826.87'
EG: 814.87'-2:1-6:1-10.2%-10.6%815820825(P) WESTERN PERIMETER PERF. UNDERDRAIN
@ -1.0% MIN. SLOPE TO DAYLIGHT AT RUNDOWN
-2.5%12"12"-2.5%
20 LF-8" DIA. HDPE CULVERTS
@ -0.80% SLOPE (TYP.)
807
808
810
815
820
825810815806807808
809
811
812
813
814
816
-0.5%-0.5%-0.50%
-0.50%
(P) PERF. UNDERDRAINS @ -1.0%
MIN. SLOPE TO DAYLIGHT. (TYP.)6"6"6"745 7
5
0
7
5
5 760765770775780785790795800805810(E) GATE TO REMAIN -3.1%STAIRS TO MOUND ELEVATION
(REF. STRUCTURAL)
N: 1022820.92'
E: 2849561.98'
PG: 827.13'
EG: 814.74'
N: 1022771.98'
E: 2849561.62'
PG: 827.13'
EG: 815.02'
N: 1022820.12'
E: 2849680.13'
PG: 827.13'
EG: 814.70'
N: 1022771.18'
E: 2849679.80'
PG: 827.13'
EG: 815.11'
FLOWLINE GRADES
N: 1022796.40'
E: 2849568.048'
PG: 826.08'
EG: 814.98'
-3:1
(P) 12" PERF. UNDERDRAIN
TO DAYLIGHT WEST OF
WALL INTO FACE OF SLOPE-0.5%-0.5%-0.5%-22.4%12"6"FLOWLINE GRADES (TYP.)
PG: 826.16'
INV.: 825.66'
4313
4
!!! (E) SALES GAS LINE IN VICINITY OF PROPOSED CULVERT WORK
SHALL BE IDENTIFIED AND LOCATED PRIOR TO CONSTRUCTION.
EOR SHALL BE NOTIFIED OF IT'S DEPTH AND LOCATION!!!6"6"6"6"6"TIE-IN GRADES AT LOD
AND SLOPE UP TO
WALL AT 3% MINIMUM.-1.2%-1.2%-1.5%-1.5%-3.0%3.0'
0.0%WW
WWWWOHOHOHOHOH
G
G
SSSSSTxxxxxxxxxxxxxxxxx>28.0'18.0'35.0'24.0'
17.9'
3.0'
17.6'
SERVICE CENTER:
CAD FILE NAME:
BY
DRAWINGREVISIONS
NO.DESCRIPTION DATE
DESIGNED BY:
APPROVED BY:
CHECKED BY:
DRAWN BY:
TYPE:
LOCATION:
DIVISION:CITY/COUNTY :IN SERVICE DATE:
HISTORY DATE
FLOC:
®
SIBLEY PROPANE PLANT
GRADING & DRAINAGE PLAN - NORTHWEST 4302
2
D1_4302_Sibley Mounding.dwg
NORTHERN MENDOTA HEIGHTS / DAKOTA FACILITY
UNIT 00
GU-SPG
NORTHERN STATES POWER COMPANY
MR 05/24/2024
IFC 05/24/2024
IFC 05/24/2024
0 ISSUED FOR CONSTRUCTION IFC 06/30/2022
1 ISSUED FOR CONSTRUCTION AJL 05/12/2023
2 ISSUED FOR CONSTRCUTION- NOTE 7 MR 05/24/2024
4302 4303
4304 4305
MATCHLINE - SEE SHEET NO 4304 MATCHLINE - SEE SHEET NO 4303NOTES:
1.BURIED TANKS SHOWN ON PLANS FOR REFERENCE.
GRADING PLAN INTENDED FOR SURFACE GRADING ABOVE
THESE REFERENCED TANKS.
2.REFER TO STRUCTURAL DRAWING PACKAGE FOR EXACT
LOCATIONS OF TOP OF MOUND CONCRETE
SIDEWALKS/SUPPORTS.
3.SLOPE LABELS SHOWN FOR SURFACE GRADING AND ARE
NOT INTENDED TO DEPICT SLOPES OF PROPOSED
UNDERDRAIN PIPES.
4.DAYLIGHT FLOWLINES BENEATH WALKWAYS VIA A SINGLE 8"
DIA. HDPE PIPE AT EACH LOCATION. REFER TO DETAIL K ON
SHEET 4308.
5.ALL CULVERTS AT MOUND SURFACE TO BE PLACED WITH
INVERTS TO MATCH THE BASE OF THE 3" D50 RIPRAP
SURFACE. (I.E. 6" BELOW PG)
6.ALL CULVERTS 12"-DIA. AND UP SHALL HAVE FLARED END
SECTIONS PROVIDED EXCEPT AT MOUNDING RIPRAP
RUNDOWN DAYLIGHT LOCATIONS.
7.DRAWING SUPERSEDES ALL PREVIOUS REVISIONS DUE TO
SCOPE CHANGE FROM FIRE WATER TO MOUNDING.
>>
x x x
G
8460
8466
8460
8466
OH
SS
ST
x x x
LEGEND:
-X.X%-X:X
EXISTING MAJOR CONTOURS
EXISTING MINOR CONTOURS
PROPOSED MAJOR CONTOURS
PROPOSED MINOR CONTOURS
SURFACE BOUNDARY
PROPERTY LINE
PROPOSED FLOW LINE
PROPOSED FIREWATER MAIN
PROPOSED HYDRANT HEADER
EXISTING FENCE TO BE REMOVED
PROPOSED FENCE
EXISTING FENCE
EXISTING GAS LINE
EXISTING OVERHEAD UTILITY
EXISTING SANITARY SEWER
EXISTING STORM SEWER
PROPOSED CULVERT/ STORM SEWER
PROPOSED UNDERDRAIN
GRAVEL (INCLUDES SMALL
DIA. RIPRAP <6")
CONCRETE
LARGE DIA. RIPRAP (>6")
PROPOSED ASPHALT
PROPOSED TRENCH GRATE
PROPOSED SURFACE SLOPES
W
W W
PROFESSIONAL ENGINEER
I hereby certify that this plan, specification, or
report was prepared by me or under my direct
supervision and that I am a duly Licensed
Professional Engineer under the Laws of the
state of Minnesota.
Signature:
Typed or Printed Name: Isaac Francis Cohrs
Date: License Number: 5910605/24/2024
Page 49 of 68
WW W W
WWWWWWWWWWW W W W W W WWWWWWWWWW
WWWWWWWWWWWWWWWWWWWWWWWWWWWW W W W
OHOHOHOHOHOHOHOHOHOHOHOHOHOHOHOHOHOHOHOHOHOHOHOHOHOHOHOHOHOHOHOHOHOHOHOHOHOHOHOHOHOHOHOHOHOHOHOHOHOHOHOHOHOHOHOHGGGGGGGGGGG GG G G G G G G G G G G G G G G GGGGGGGGG
GGGGGGGGGGG GG G G G G G G G G G G G G GGGGGGGGGGGGGGGG
G GGG
G xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx>>>>>>>>64'-0"9'-6"808
808
809
820825815810
809
810
815
820
825 -2:1-3:1
-3:1 810(P) 160 LF- CONCRETE
DRAINAGE PAN TO POND
REMOVE EXISTING
CONCRETE RUNDOWN
(E) STAIRWAY
FOR EXTENTS OF DEMOLITION,
REF. STRUCTURAL
ASPHALT TIE-IN TO (P) TRENCH (TYP.)
(P) 30" WIDE CONCRETE TRENCH
(TYP.)
(P) 50 LF - 18" DIA. HDPE CULVERT @
-1.8% SLOPE WITH MIN. 12" COVER.
PROVIDE STD. FLARED END SECTIONS
1,000 SF - 9" D50 RIPRAP INLET
PROTECTION IN 15" THICK LAYER
OVER SEPARATION & REINFORCEMENT
GEOTEXTILE
PROTECT EXISTING
POWER POLE IN PLACE
BEGIN DITCH TRANSITION
FL/ END 1' DEEP TRENCH
N: 1022945.51'
E: 2849793.00'
PG: 806.45'
EG: 807.18'
FL/ BEGIN 1'-6" DEEP TRENCH & GRATING
N: 1022947.55'
E: 2849789.51'
PG: 806.43'
EG: 807.30'
FLOWLINE
N: 1022958.03'
E: 2849771.57'
PG: 806.33'
EG: 807.66'
FLOWLINE
N: 1022943.30'
E: 2849796.80'
PG: 806.47'
EG: 807.25'8158158158208258168178188198218228238248268278288290.0%0.0%0.0%0.0%
0.0%
0.0%
0.0%12"12"12"12"12"12"6"6"6"6"6"6"6"6"6"6"6"6"6"6"6"6"6"6"0.0%N: 1022758.01'
E: 2849705.46'
PG: 825.15'
INV.: 824.65'
N: 1022778.01'
E: 2849705.58'
PG: 825.30'
INV.: 824.80'
16 LF-12" DIA. HDPE
CULVERT @ -0.80% SLOPE
FLOWLINE GRADES (TYP.)
PG: 826.87'
EG: 814.92'
FLOWLINE GRADES (TYP.)
N: 1022795.49'
E: 2849703.71'
PG: 825.39'
INV.: 824.89'
N: 1022795.14'
E: 2849707.69'
PG: 825.39'
INV.: 824.89'
N: 1022794.95'
E: 2849730.96'
PG: 825.55'
INV.: 825.05'
20 LF-12" DIA. HDPE
CULVERT @ -0.80% SLOPE
-0.5%-0.5%-1.8%-0.5%-0.5%-0.5%-0.5%-0.5%-0.5%-0.5%-0.5%-0.5%-0.5%-0.5%-0.5%-6.4%-6.3%-4.4%-5.9%FLOWLINE
N: 1022798.79'
E: 2849999.54'
PG: 815.70'
EG: 815.90'-0.5%-0.5%-0.5%-0.5%-0.5%-0.5%-0.5%-0.5%-0.5%-3:1-3:1
-4.1%-4.1%-6:1TOC EL :
827.13'
TOC EL :
827.13'
TOC EL :
827.13'
TOC EL :
827.13'
TOC EL :
827.13'
TOC EL :
827.13'
TOC EL :
827.13'
TOC EL :
827.13'
N: 1022794.63'
E: 2849770.46'
PG: 825.75'
INV.: 825.25'
N: 1022794.42'
E: 2849790.46'
PG: 825.87'
INV.: 825.37'
12 LF-12" DIA. HDPE
CULVERT @ -0.80% SLOPE
FLOWLINE GRADES (TYP.)
PG: 826.87'
EG: 814.89'
FLOWLINE GRADES (TYP.)
PG: 826.67'
EG: 814.48'
-4.1%-4.1%-6:1N: 1022884.91'
E: 2849943.57'
PG: 827.13'
EG: 815.33'-2.8%-2.6%N: 1022817.58'
E: 2849933.96'
PG: 827.13'
EG: 814.84'
N: 1022769.48'
E: 2849933.58'
PG: 827.13'
EG: 815.25'
BEGIN ASPHALT SURFACED ACCESS ROAD
N: 1022900.41'
E: 2849998.30'
PG: 814.45'
EG: 815.05'
BEGIN ASPHALT SURFACED ACCESS ROAD
N: 1022900.47'
E: 2849978.30'
PG: 814.95'
EG: 816.01'
BEGIN ASPHALT SURFACED ACCESS ROAD
N: 1022952.11'
E: 2849950.98'
EG: 808.27'
BEGIN ASPHALT SURFACED ACCESS ROAD
N: 1022994.85'
E: 2849978.56'
EG: 809.15'
N: 1022942.53'
E: 2849948.74'
(P) INV ELEV.: 807.23'
EG: 809.20'
N: 1022938.81'
E: 2850002.89'
(P) INV ELEV.: 808.14'
EG: 814.16'
(P) 81 LF RET. WALL
(6.0' MAX. HEIGHT)
N: 1022925.04'
E: 2849734.59'
TOW: 810.67'
EG: 808.64'
N: 1022916.04'
E: 2849734.53'
TOW: 814.92'
EG: 810.98'-3.7%-1.5%-3.5%-4.0%-0.5%
-0.5
%
-0.5%
-
4
.
9%
811
812
813
814
815
81
6
816-10.0%-10.0%-2.0%
-2.0%
-2.6%-10.0%-3.0%-1.5%
-2.5%
-2.5%
-2.5%-0.8%-0.8%-2.5%-0.8%815 (P) PERF. UNDERDRAINS @ -1.0%
MIN. SLOPE TO DAYLIGHT. (TYP.)-1.6%6"(E) CONC. STEM WALLS
FOR EXTENTS OF DEMOLITION,
REF. STRUCTURAL
(P) FIREWATER MAIN
(REF: 2000 SERIES)
65'-9"11'-3"(P) 12" PERF. UNDERDRAIN TO DAYLIGHT
WEST OF WALL INTO FACE OF SLOPE
N: 1022795.71'
E: 2849673.96'
PG: 825.55'
INV.: 825.05'
STAIRS TO MOUND ELEVATION
(REF. STRUCTURAL)
6"6"FLOWLINE GRADES
N: 1022793.57'
E: 2849927.60'
PG: 826.56'
EG: 815.04'
12"-4:1-2:1
-4:1
-3:1
-2:1
-2.5%
-11.9%
-4:1
-10.1%
TIE-IN GRADES AT LOD
AND SLOPE UP TO
WALL AT 3% MINIMUM.
STAIRS TO MOUND ELEVATION
(REF. STRUCTURAL)-5:117.9'6"(P) HYDRANT HEADER
(REF: 2000 SERIES)
(P) HYDRANT (TYP.)
(REF: 2000 SERIES)WW
WWWWOHOHOHOHOH
G
G
SSSSSTxxxxxxxxxxxxxxxxx>SERVICE CENTER:
CAD FILE NAME:
BY
DRAWINGREVISIONS
NO.DESCRIPTION DATE
DESIGNED BY:
APPROVED BY:
CHECKED BY:
DRAWN BY:
TYPE:
LOCATION:
DIVISION:CITY/COUNTY :IN SERVICE DATE:
HISTORY DATE
FLOC:
®
SIBLEY PROPANE PLANT
GRADING & DRAINAGE PLAN - NORTHEAST 4303
2
D1_4302_Sibley Mounding.dwg
NORTHERN MENDOTA HEIGHTS / DAKOTA FACILITY
UNIT 00
GU-SPG
NORTHERN STATES POWER COMPANY
MR 05/24/2024
IFC 05/24/2024
IFC 05/24/2024
0 ISSUED FOR CONSTRUCTION IFC 06/30/2022
1 ISSUED FOR CONSTRUCTION AJL 05/12/2023
2 ISSUED FOR CONSTRUCTION- NOTE 7 MR 05/24/2024
4302 4303
4304 4305
MATCHLINE - SEE SHEET NO 4305MATCHLINE - SEE SHEET NO 4302>>
x x x
G
8460
8466
8460
8466
OH
SS
ST
x x x
LEGEND:
-X.X%-X:X
EXISTING MAJOR CONTOURS
EXISTING MINOR CONTOURS
PROPOSED MAJOR CONTOURS
PROPOSED MINOR CONTOURS
SURFACE BOUNDARY
PROPERTY LINE
PROPOSED FLOW LINE
PROPOSED FIREWATER MAIN
PROPOSED HYDRANT HEADER
EXISTING FENCE TO BE REMOVED
PROPOSED FENCE
EXISTING FENCE
EXISTING GAS LINE
EXISTING OVERHEAD UTILITY
EXISTING SANITARY SEWER
EXISTING STORM SEWER
PROPOSED CULVERT/ STORM SEWER
PROPOSED UNDERDRAIN
GRAVEL (INCLUDES SMALL
DIA. RIPRAP <6")
CONCRETE
LARGE DIA. RIPRAP (>6")
PROPOSED ASPHALT
PROPOSED TRENCH GRATE
PROPOSED SURFACE SLOPES
W
W W
NOTES:
1.BURIED TANKS SHOWN ON PLANS FOR REFERENCE.
GRADING PLAN INTENDED FOR SURFACE GRADING ABOVE
THESE REFERENCED TANKS.
2.REFER TO STRUCTURAL DRAWING PACKAGE FOR EXACT
LOCATIONS OF TOP OF MOUND CONCRETE
SIDEWALKS/SUPPORTS.
3.SLOPE LABELS SHOWN FOR SURFACE GRADING AND ARE
NOT INTENDED TO DEPICT SLOPES OF PROPOSED
UNDERDRAIN PIPES.
4.DAYLIGHT FLOWLINES BENEATH WALKWAYS VIA A SINGLE 8"
DIA. HDPE PIPE AT EACH LOCATION. REFER TO DETAIL K ON
SHEET 4308.
5.ALL CULVERTS AT MOUND SURFACE TO BE PLACED WITH
INVERTS TO MATCH THE BASE OF THE 3" D50 RIPRAP
SURFACE. (I.E. 6" BELOW PG)
6.ALL CULVERTS 12"-DIA. AND UP SHALL HAVE FLARED END
SECTIONS PROVIDED EXCEPT AT MOUNDING RIPRAP
RUNDOWN DAYLIGHT LOCATIONS.
7.DRAWING SUPERSEDES ALL PREVIOUS REVISIONS DUE TO
SCOPE CHANGE FROM FIRE WATER TO MOUNDING.
PROFESSIONAL ENGINEER
I hereby certify that this plan, specification, or
report was prepared by me or under my direct
supervision and that I am a duly Licensed
Professional Engineer under the Laws of the
state of Minnesota.
Signature:
Typed or Printed Name: Isaac Francis Cohrs
Date: License Number: 5910605/24/2024
Page 50 of 68
G G G G G G G G GGGGGGG G G G G G G G GGGGGGGG G G G G GSSSSSSSSSSSS
SSSSSSSSSSSSSSSSSSS
S
S
S
S
S
S
S
S
S
S
S xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx>>>>>>>>>>>>>>>>>>>>>>>>7357407457507557607657707757807857907958
1
5 815815800-45.1%815820825815820825820
825
-3:1
-2:1
-2:1-2:1
(P) 210' LONG X 10' WIDE @ BOT. X 1' DEEP W/ 3:1
SIDE SLOPES RIPRAP-LINED RUNDOWN & END
SECTION. 18" D50 RIPRAP 36" THICK LAYER OVER
RIPRAP FABRIC OR SEPARATION & REINFORCEMENT
GEOTEXTILE & REPAIRED SUBGRADE
DENOTES EXISTING TANK
FOUNDATION (TYP.)
(E) SANITARY SEWER
MATCH EXISTING GRADES @ OUTSIDE
OF RIPRAP-LINED RUNDOWN
20' LONG END SECTION @ 10%
OR LESS LONGITUDINAL SLOPE
DENOTES SURFACE
BOUNDARY (TYP.)
N: 1022709.33'
E: 2849550.30'
PG: 827.13'
EG: 814.97'
N: 1022702.04'
E: 2849548.87'
PG: 827.13'
EG: 815.00'
N: 1022654.19'
E: 2849529.75'
PG: 829.63'
EG: 814.26'
N: 1022661.68'
E: 2849532.74'
PG: 827.13'
EG: 813.97'
N: 1022643.43'
E: 2849526.94'
PG: 829.63'
EG: 814.54'
N: 1022551.93'
E: 2849528.32'
PG: 829.63'
EG: 814.87'
N: 1022551.46'
E: 2849629.82'
PG: 829.63'
EG: 815.04'
N: 1022553.45'
E: 2849631.83'
PG: 829.63'
EG: 815.05'
815
815
815
815
815
820
816
817
818
819
821
822
823
N: 1022666.94'
E: 2849482.54'
PG: 813.84'
EG: 814.86'
APPROX. LOCATION OF PERF
PIPE DAYLIGHT AT RUNDOWN
N: 1022666.90'
E: 2849462.40'
EG: 812.58'
N: 1022495.91'
E: 2849478.63'
PG: 815.00'
EG: 814.81'
FLOWLINE
N: 1022518.80'
E: 2849528.17'
PG: 815.78'
EG: 815.09'
FLOWLINE
N: 1022518.25'
E: 2849647.11'
PG: 814.81'
EG: 814.96'
-9:1-9:1
-4:1TOC EL :
829.63'
TOC EL :
829.63'
TOC EL :
827.13'
TOC EL :
827.13'
0.0%
0.0%-3:10.0%
0.0%0.0%0.0%0.0%N: 1022494.57'
E: 2849661.76'
PG: 815.00'
EG: 814.74'
FLOWLINE
N: 1022542.76'
E: 2849665.76'
PG: 814.59'
EG: 814.83'
N: 1022661.23'
E: 2849632.56'
PG: 827.13'
EG: 814.94'
N: 1022653.73'
E: 2849632.51'
PG: 829.63'
EG: 814.79'
FLOWLINE
N: 1022641.54'
E: 2849666.41'
PG: 813.80'
EG: 814.84'
FLOWLINE
N: 1022643.39'
E: 2849668.28'
PG: 813.78'
EG: 814.84'-7:1-0.8%-0.8%-0.8%-0.8%FLOWLINE GRADES (TYP.)
PG: 829.00'
INV. 828.50'
17 LF-8" DIA. HDPE CULVERTS
@ -0.80% SLOPE (TYP.)6"6"6"6"6"6"6"6"12"-5.9%-15.7%(P) PERF. UNDERDRAINS
@ -1.0% MIN. SLOPE TO
DAYLIGHT. (TYP.)
TOC EL :
829.63'
-3:
1-4:1-10:1-10:1FLOWLINE GRADES (TYP.)
PG: 826.50'
EG: 814.78'
23 LF-12" DIA. HDPE CULVERT @ -0.80% SLOPE
N: 1022682.01'
E: 2849604.70'
PG: 825.78'
INV.: 825.28'
N: 1022681.86'
E: 2849632.20'
PG: 825.51'
INV.: 825.01'
N: 1022681.80'
E: 2849643.90'
PG: 825.08'
EG: 814.95'6"6"6"
N: 1022702.75'
E: 2849670.16'
PG: 827.13'
EG: 814.91'
R
2
0
'
-
0
"
R20'-0"
N: 1022695.71'
E: 2849654.80'
PG: 827.13'
EG: 814.94'
N: 1022675.21'
E: 2849637.34'
PG: 827.13'
EG: 814.96'-1.2%-1.2%-1.5%-1.5%-0.5%
-0.8%-0.8%-0.7%-0.8%R20'-0"N: 1022615.82'
E: 2849671.08'
PG: 814.30'
EG: 814.76'
N: 1022640.82'
E: 2849671.25'
PG: 814.10'
EG: 814.83'745
750
755760770775780785740790 795735 800805(P) WESTERN PERIMETER PERF. UNDERDRAIN
@ -1.0% MIN. SLOPE TO DAYLIGHT AT RUNDOWN
12"-2.5%
CONTROL
N: 1022497.517'
E: 2849480.456'
POINT NO: 412
ELEV.: 815.062'
CONTROL
N: 1022682.654'
E: 2849488.683'
POINT NO: 412
ELEV.: 815.062'
(P) WESTERN PERIMETER PERF. UNDERDRAIN @
-1.0% MIN. SLOPE TO DAYLIGHT AT RUNDOWN
-2.6%-2.6%(P) 252 LF- CONCRETE DRAINAGE
PAN TO POND
(P) STAIRS. REFER TO STRUCTURAL.
(P) STAIRS. REFER
TO STRUCTURAL.
N: 1022703.00'
E: 2849557.87'
PG: 827.13'
EG: 814.92'
N: 1022702.64'
E: 2849610.84'
PG: 827.13'
EG: 814.80'
N: 1022661.33'
E: 2849610.56'
PG: 827.13'
EG: 814.87'
N: 1022661.64'
E: 2849541.34'
PG: 827.13'
EG: 814.22'
N: 1022702.54'
E: 2849626.33'
PG: 827.13'
EG: 814.82'
N: 1022661.26'
E: 2849626.06'
PG: 827.13'
EG: 814.92'
(P) 6' WIDE BOT. WIDTH X 9" D50
IN 36" LAYER RIPRAP RUNDOWN
OVER SEPARATION &
REINFORCEMENT GEOTEXTILE
AT SLOPES DEPICTED.
SDMH 1
36" DIA. NYLOPLAST MANHOLE
RIM ELEV. = 815.32'
N: 1022509.62'
E: 2849654.36'
IN INV. ELEV. = 807.29 (18" NE)
OUT INV. ELEV. = 807.09 (18" W)
SDMH 2
36" DIA. NYLOPLAST MANHOLE
RIM ELEV. = 814.89'
N: 1022510.83'
E: 2849488.69'
IN INV. ELEV. = 805.43 (18" E)
OUT INV. ELEV. = 805.23 (18" N)
SDMH 3
36" DIA. NYLOPLAST MANHOLE
RIM ELEV. = 814.04'
N: 1022664.33'
E: 2849489.27'
IN INV. ELEV. = 803.69 (18" S)
OUT INV. ELEV. = 803.49 (18" W)
FLARED END SECTION
APPROX. LOCATION OF DAYLIGHT
N: 1022664.79'
E: 2849445.63'
OUT INV. ELEV. = 803.05 (18" E)
166 L.F. - 18" DIA. SMOOTH-WALLED
INTERIOR HDPE @ -1.0%
153 L.F. - 18" DIA. SMOOTH-WALLED
INTERIOR HDPE @ -1.0%
44 L.F. - 18" DIA. SMOOTH-WALLED
INTERIOR HDPE @ -1.0%
12
"12"-2:1 -4:1-4:1FLOWLINE GRADES (TYP.)
PG: 829.40'
EG: 814.76'
-2.5%
-2.5%
12"
-2.5%
LENGTHS VARY (12 TO 18 LF)
- 8" DIA. HDPE CULVERT @
-0.80% SLOPE (TYP.)28.0'24
.
0
'
17.6'
121 L.F. - 18" DIA. SMOOTH-WALLED
INTERIOR HDPE @ 1.00%
(P) 83 L.F. - NEW FENCING 6"6"6"6"WW
WWWWOHOHOHOHOH
G
G
SSSSSTxxxxxxxxxxxxxxxxx>SERVICE CENTER:
CAD FILE NAME:
BY
DRAWINGREVISIONS
NO.DESCRIPTION DATE
DESIGNED BY:
APPROVED BY:
CHECKED BY:
DRAWN BY:
TYPE:
LOCATION:
DIVISION:CITY/COUNTY :IN SERVICE DATE:
HISTORY DATE
FLOC:
®
SIBLEY PROPANE PLANT
GRADING & DRAINAGE PLAN - SOUTHWEST 4304
2
D1_4302_Sibley Mounding.dwg
NORTHERN MENDOTA HEIGHTS / DAKOTA FACILITY
UNIT 00
GU-SPG
NORTHERN STATES POWER COMPANY
MR 05/24/2024
IFC 05/24/2024
IFC 05/24/2024
0 ISSUED FOR CONSTRUCTION IFC 06/30/2022
1 ISSUED FOR CONSTRUCTION AJL 05/12/2023
2 ISSUED FOR CONSTRCUTION- NOTE 8 MR 05/24/2024
4302 4303
4304 4305
MATCHLINE - SEE SHEET NO 4302
MATCHLINE - SEE SHEET NO 4305NOTES:
1.BURIED TANKS SHOWN ON PLANS FOR REFERENCE.
GRADING PLAN INTENDED FOR SURFACE GRADING ABOVE
THESE REFERENCED TANKS.
2.REFER TO STRUCTURAL DRAWING PACKAGE FOR EXACT
LOCATIONS OF TOP OF MOUND CONCRETE
SIDEWALKS/SUPPORTS.
3.SLOPE LABELS SHOWN FOR SURFACE GRADING AND ARE
NOT INTENDED TO DEPICT SLOPES OF PROPOSED
UNDERDRAIN PIPES.
4.DAYLIGHT FLOWLINES BENEATH WALKWAYS VIA A SINGLE 8"
DIA. HDPE PIPE AT EACH LOCATION. REFER TO DETAIL K ON
SHEET 4308.
5.ALL CULVERTS AT MOUND SURFACE TO BE PLACED WITH
INVERTS TO MATCH THE BASE OF THE 3" D50 RIPRAP
SURFACE. (I.E. 6" BELOW PG)
6.ALL CULVERTS 12"-DIA. AND UP SHALL HAVE FLARED END
SECTIONS PROVIDED EXCEPT AT RUNDOWN DAYLIGHT
LOCATIONS.
7.REFER TO SHEETS 4600/4601 FOR FENCING DETAILS.
8.DRAWING SUPERSEDES ALL PREVIOUS REVISIONS DUE TO
SCOPE CHANGE FROM FIRE WATER TO MOUNDING.
>>
x x x
G
8460
8466
8460
8466
OH
SS
ST
x x x
LEGEND:
-X.X%-X:X
EXISTING MAJOR CONTOURS
EXISTING MINOR CONTOURS
PROPOSED MAJOR CONTOURS
PROPOSED MINOR CONTOURS
SURFACE BOUNDARY
PROPERTY LINE
PROPOSED FLOW LINE
PROPOSED FIREWATER MAIN
PROPOSED HYDRANT HEADER
EXISTING FENCE TO BE REMOVED
PROPOSED FENCE
EXISTING FENCE
EXISTING GAS LINE
EXISTING OVERHEAD UTILITY
EXISTING SANITARY SEWER
EXISTING STORM SEWER
PROPOSED CULVERT/ STORM SEWER
PROPOSED UNDERDRAIN
GRAVEL (INCLUDES SMALL
DIA. RIPRAP <6")
CONCRETE
LARGE DIA. RIPRAP (>6")
PROPOSED ASPHALT
PROPOSED TRENCH GRATE
PROPOSED SURFACE SLOPES
W
W W
PROFESSIONAL ENGINEER
I hereby certify that this plan, specification, or
report was prepared by me or under my direct
supervision and that I am a duly Licensed
Professional Engineer under the Laws of the
state of Minnesota.
Signature:
Typed or Printed Name: Isaac Francis Cohrs
Date: License Number: 5910605/24/2024
Page 51 of 68
WWWWWWWWW W W W
OHOHOHOHOHOHOHOHOHOHOHOHOHOHOHOHOHOHOHOHOHOHOHOHOHOHOHOHOHOHOHOHOHOHOH OH OH OH OH OH OH OH OH OH OH OH OH OH OH
OHOHOHOHOHOH OH OH OH OH OH OH OHOHOHOHOHOHOHOHOHGGGGGGGGGGGGGGGGGxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
xxxx>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>815815810
815
815-3:1-3:1
-3:1-4:1-4:1
-9.2%-3:1810
815
820
825
N: 1022702.51'
E: 2849705.09'
PG: 824.87'
EG: 815.08'12"6"6"6"6"6"6"6"6"6"N: 1022560.26'
E: 2849711.76'
PG: 815.33'
EG: 815.38'
0.0%
FLOWLINE GRADES (TYP.)
PG: 826.67'
EG: 814.89'R
2
0
'
-
0
"-0.5%N: 1022702.90'
E: 2849944.34'
PG: 827.13'
EG: 814.93'
N: 1022700.92'
E: 2849942.33'
PG: 827.13'
EG: 814.92'
N: 1022657.29'
E: 2849885.29'
PG: 813.98'
EG: 814.62'
FLOWLINE
N: 1022658.56'
E: 2849995.32'
PG: 814.59'
EG: 815.25'
FLOWLINE
N: 1022632.80'
E: 2849998.30'
PG: 815.24'
EG: 815.38'
-0.8%-0.8%-2.7%N: 1022626.76'
E: 2849931.16'
PG: 814.67'
EG: 814.12'
N: 1022627.10'
E: 2849880.16'
PG: 810.02'
EG: 814.43'-3:1-0.5%-0.5%-0.5%-0.5%-0.5%-0.5%-0.5%-0.5%-0.5%-3:1-3:1
-4.1%-4.1%R20'-0"R20'-0"R
2
0
'
-
0
"
N: 1022641.00'
E: 2849896.20'
PG: 814.02'
EG: 814.50'
N: 1022612.98'
E: 2849896.02'
PG: 814.41'
EG: 814.09'
N: 1022594.46'
E: 2849875.94'
PG: 814.46'
EG: 814.35'
N: 1022660.52'
E: 2849721.00'
PG: 814.00'
EG: 814.74'
N: 1022595.69'
E: 2849690.95'
PG: 814.46'
EG: 815.06'
N: 1022659.46'
E: 2849876.38'
PG: 814.00'
EG: 814.63'
815
820
825
830
830
830
816
817
818
819
821
822
823
824
826827
828
829
-2.5%-0.8%6"6"POND OUTLET STRC
REFER TO DETAIL 1 ON SHEET 4311
RIM ELEV. = 813.75'
N: 1022610.45'
E: 2849721.09'
OUT INV. ELEV. = 808.50 (18" SW)
POND BOTTOM: 809.50'12"121 L.F. - 18" DIA. SMOOTH-WALLED
INTERIOR HDPE @ -1.0%
-3:1 -3:1
N: 1022643.15'
E: 2849721.06'
PG: 809.68'
EG: 814.67'
N: 1022640.76'
E: 2849686.45'
PG: 809.75'
EG: 814.80'815815815815815815820825816817818819821822823824826827828829-4:1FLOWLINE
N: 1022659.23'
E: 2849895.58'
PG: 813.80'
EG: 814.63'
N: 1022648.91'
E: 2849894.04'
PG: 814.10'
EG: 814.59'
FLOWLINE
N: 1022656.62'
E: 2849893.02'
PG: 813.77'
EG: 814.62'-0.6%-0
.6%-0.5%-2.4%-1.5%-
1
.
3%
-2.5
%
-
2
.
6%
-4:
1 -4:1-4:1-4:1-4:1
-4:1
4311
1
4312
2
4313
3
18.0'35.0'24
.
0
'6"100-YR DETENTION POND
W/ IMPERVIOUS LINER
DENOTES SURFACE
BOUNDARY (TYP.)
DENOTES EXISTING TANK
FOUNDATION (TYP.)
ENSURE FUNCTIONALITY OF EXISTING
BERM @ TOP OF CUT SLOPE
EXISTING POLE-MOUNTED
TRANSFORMER
(P) 12' WIDE ALL-WEATHER
POND BOT. VEHICLE ACCESS PROTECT EXISTING
POWER POLE IN PLACE
ENSURE FUNCTIONALITY OF EXISTING
BERM @ TOP OF CUT SLOPE
(P) 8" DEEP CONCRETE FOREBAY W/
VERTICAL TEETH AND RIPRAP
OVERLAIN
V NOTCH INV.: 809.74'
TOP OF CURB: 810.41'
(P) 160 LF- CONCRETE
DRAINAGE PAN TO POND
(P) 105 LF- CONCRETE
DRAINAGE PAN TO POND
(E) MAN GATE
(E) VEHICLE GATE TO REMAIN
(P) 6' WIDE BOT. WIDTH X 9" D50 IN 36" LAYER
RIPRAP RUNDOWN OVER SEPARATION &
REINFORCEMENT GEOTEXTILE AT SLOPES
DEPICTED.
(P) 8" DEEP CONCRETE FOREBAY W/
VERTICAL TEETH AND RIPRAP OVERLAIN
V NOTCH INV.: 810.04'
TOP OF CURB: 810.71'
(P) 6' WIDE BOT. WIDTH X 9" D50 IN 18" LAYER RIPRAP
RUNDOWN OVER SEPARATION & REINFORCEMENT
GEOTEXTILE AT SLOPES DEPICTED.
(P) 83 L.F. - NEW FENCING
(P) HYDRANT HEADER
(REF: 2000 SERIES)
(P) HYDRANT (TYP.)
(REF: 2000 SERIES)WW
WWWWOHOHOHOHOH
G
G
SSSSSTxxxxxxxxxxxxxxxxx>SERVICE CENTER:
CAD FILE NAME:
BY
DRAWINGREVISIONS
NO.DESCRIPTION DATE
DESIGNED BY:
APPROVED BY:
CHECKED BY:
DRAWN BY:
TYPE:
LOCATION:
DIVISION:CITY/COUNTY :IN SERVICE DATE:
HISTORY DATE
FLOC:
®
SIBLEY PROPANE PLANT
GRADING & DRAINAGE PLAN - SOUTHEAST 4305
2
D1_4302_Sibley Mounding.dwg
NORTHERN MENDOTA HEIGHTS / DAKOTA FACILITY
UNIT 00
GU-SPG
NORTHERN STATES POWER COMPANY
MR 05/24/2024
IFC 05/24/2024
IFC 05/24/2024
0 ISSUED FOR CONSTRUCTION IFC 06/30/2022
1 ISSUED FOR CONSTRUCTION AJL 05/12/2023
2 ISSUED FOR CONSTRCUTION- NOTE 8 MR 05/24/2024
4302 4303
4304 4305
MATCHLINE - SEE SHEET NO 4303
MATCHLINE - SEE SHEET NO 4304NOTES:
1.BURIED TANKS SHOWN ON PLANS FOR REFERENCE.
GRADING PLAN INTENDED FOR SURFACE GRADING ABOVE
THESE REFERENCED TANKS.
2.REFER TO STRUCTURAL DRAWING PACKAGE FOR EXACT
LOCATIONS OF TOP OF MOUND CONCRETE
SIDEWALKS/SUPPORTS.
3.SLOPE LABELS SHOWN FOR SURFACE GRADING AND ARE
NOT INTENDED TO DEPICT SLOPES OF PROPOSED
UNDERDRAIN PIPES.
4.DAYLIGHT FLOWLINES BENEATH WALKWAYS VIA A SINGLE 8"
DIA. HDPE PIPE AT EACH LOCATION. REFER TO DETAIL K ON
SHEET 4308.
5.ALL CULVERTS AT MOUND SURFACE TO BE PLACED WITH
INVERTS TO MATCH THE BASE OF THE 3" D50 RIPRAP
SURFACE. (I.E. 6" BELOW PG)
6.ALL CULVERTS 12"-DIA. AND UP SHALL HAVE FLARED END
SECTIONS PROVIDED EXCEPT AT RUNDOWN DAYLIGHT
LOCATIONS.
7.REFER TO SHEETS 4600/4601 FOR FENCING DETAILS.
8.DRAWING SUPERSEDES ALL PREVIOUS REVISIONS DUE TO
SCOPE CHANGE FROM FIRE WATER TO MOUNDING.
>>
x x x
G
8460
8466
8460
8466
OH
SS
ST
x x x
LEGEND:
-X.X%-X:X
EXISTING MAJOR CONTOURS
EXISTING MINOR CONTOURS
PROPOSED MAJOR CONTOURS
PROPOSED MINOR CONTOURS
SURFACE BOUNDARY
PROPERTY LINE
PROPOSED FLOW LINE
PROPOSED FIREWATER MAIN
PROPOSED HYDRANT HEADER
EXISTING FENCE TO BE REMOVED
PROPOSED FENCE
EXISTING FENCE
EXISTING GAS LINE
EXISTING OVERHEAD UTILITY
EXISTING SANITARY SEWER
EXISTING STORM SEWER
PROPOSED CULVERT/ STORM SEWER
PROPOSED UNDERDRAIN
GRAVEL (INCLUDES SMALL
DIA. RIPRAP <6")
CONCRETE
LARGE DIA. RIPRAP (>6")
PROPOSED ASPHALT
PROPOSED TRENCH GRATE
PROPOSED SURFACE SLOPES
W
W W
PROFESSIONAL ENGINEER
I hereby certify that this plan, specification, or
report was prepared by me or under my direct
supervision and that I am a duly Licensed
Professional Engineer under the Laws of the
state of Minnesota.
Signature:
Typed or Printed Name: Isaac Francis Cohrs
Date: License Number: 5910605/24/2024
Page 52 of 68
ELEVATION (FEET)STATION (FEET)
812.0
814.0
816.0
818.0
820.0
822.0
824.0
826.0
828.0
830.0
812.0
814.0
816.0
818.0
820.0
822.0
824.0
826.0
828.0
830.0
0+00 0+10 0+20 0+30 0+40 0+50 0+60 0+70 0+80 0+90 1+00 1+10 1+20 1+30 1+40 1+50 1+60 1+70 1+80 1+90 2+00 2+10 2+20 2+30 2+40 2+50 2+60 2+70 2+80 2+90 3+00 3+10 3+20 3+30 3+40 3+50 3+60 3+70 3+80 3+90 4+00 4+10 4+20 4+30 4+40 4+50 4+60 4+70 4+80 4+90 5+00 5+10 5+20 5+30 5+40 5+50 5+60 5+70 5+80 5+90 6+00 6+10
EXISTING
FENCE
DENOTES FILL (TYP.)
EXISTING GRADE
PROPOSED GRADE
3
1
3
1
REFERENCE 4302 TO 4305
FOR PROPOSED SLOPES
EXISTING GRADE
TANKS AND UNDERDRAINS
NOT PICTURED FOR CLARITY
UNDERDRAIN NOT
PICTURED FOR CLARITY
ROAD FILL LAYERS NOT
SHOWN FOR CLARITY
ELEVATION (FEET)STATION (FEET)
806.0
808.0
810.0
812.0
814.0
816.0
818.0
820.0
822.0
824.0
826.0
828.0
830.0
832.0
806.0
808.0
810.0
812.0
814.0
816.0
818.0
820.0
822.0
824.0
826.0
828.0
830.0
832.0
0+00 0+10 0+20 0+30 0+40 0+50 0+60 0+70 0+80 0+90 1+00 1+10 1+20 1+30 1+40 1+50 1+60 1+70 1+80 1+90 2+00 2+10 2+20 2+30 2+40 2+50 2+60 2+70 2+80 2+90 3+00 3+10 3+20 3+30 3+40 3+50 3+60 3+70 3+80 3+90 4+00 4+10 4+20 4+30 4+40 4+50 4+60 4+70 4+80 4+90 5+00 5+10 5+20 5+30 5+40 5+50 5+60 5+70 5+80 5+90 6+00 6+10
EXISTING
FENCE
100-YR DETENTION POND
W/ IMPERVIOUS LINER
11
14
1
(P) 12' WIDE ALL-WEATHER
POND BOT. VEHICLE ACCESS
POND LINER & SURFACING NOT SHOWN
FOR CLARITY
DENOTES FILL (TYP.)
PROPOSED GRADE
2
1
2
1
REFERENCE 4302 TO 4305
FOR PROPOSED SLOPES
EXISTING GRADE
PROPOSED CONCRETE DRAINAGE PAN
REF. SECTION E ON SHEET 4308
EXISTING GRADE
DENOTES FILL (TYP.)
DENOTES CUT (TYP.)
TANKS AND UNDERDRAINS
NOT PICTURED FOR CLARITYUNDERDRAIN NOT
PICTURED FOR CLARITY
SERVICE CENTER:
CAD FILE NAME:
BY
DRAWINGREVISIONS
NO.DESCRIPTION DATE
DESIGNED BY:
APPROVED BY:
CHECKED BY:
DRAWN BY:
TYPE:
LOCATION:
DIVISION:CITY/COUNTY :IN SERVICE DATE:
HISTORY DATE
FLOC:
®
SIBLEY PROPANE PLANT
GRADING PROFILES 4306
0
D1_4306_Sibley Mounding.dwg
NORTHERN MENDOTA HEIGHTS / DAKOTA FACILITY
UNIT 00
GU-SPG
NORTHERN STATES POWER COMPANY
MR 05/24/2024
IFC 05/24/2024
IFC 05/24/2024
0 ISSUED FOR CONSTRUCTION MR 05/24/2024
PROFESSIONAL ENGINEER
I hereby certify that this plan, specification, or
report was prepared by me or under my direct
supervision and that I am a duly Licensed
Professional Engineer under the Laws of the
state of Minnesota.
Signature:
Typed or Printed Name: Isaac Francis Cohrs
Date: License Number: 5910605/24/2024
Page 53 of 68
ELEVATION (FEET)STATION (FEET)
802.0
804.0
806.0
808.0
810.0
812.0
814.0
816.0
818.0
820.0
802.0
804.0
806.0
808.0
810.0
812.0
814.0
816.0
818.0
820.0
0+00 0+10 0+20 0+30 0+40 0+50 0+60 0+70 0+80 0+90 1+00
(P) 50 LF - 18" DIA. HDPE CULVERT @
-1.8% SLOPE WITH MIN. 12" COVER.
PROVIDE STD. FLARED END SECTIONS
EXISTING GRADE
PROPOSED ASPHALT
SURFACED ACCESS ROAD
DENOTES
CUT (TYP.)
9" D50 RIPRAP INLET PROTECTION IN 15"
THICK LAYER OVER SEPARATION &
REINFORCEMENT GEOTEXTILE
DENOTES
CUT (TYP.)
4
1
2
1
3
1ELEVATION (FEET)STATION (FEET)
806.0
808.0
810.0
812.0
814.0
816.0
818.0
820.0
822.0
824.0
826.0
828.0
830.0
806.0
808.0
810.0
812.0
814.0
816.0
818.0
820.0
822.0
824.0
826.0
828.0
830.0
0+00 0+10 0+20 0+30 0+40 0+50 0+60 0+70 0+80 0+90 1+00 1+10 1+20 1+30 1+40 1+50 1+60 1+70 1+80 1+90 2+00 2+10 2+20 2+30 2+40 2+50 2+60 2+70 2+80 2+90 3+00 3+10 3+20 3+30 3+40 3+50 3+60 3+70 3+80 3+90 4+00 4+10 4+20 4+30 4+40 4+50 4+60 4+70 4+80 4+90 5+00
EXISTING
FENCE
DENOTES
FILL (TYP.)
DENOTES CUT (TYP.)
EXISTING
GRADE
PROPOSED GRADE
100-YR DETENTION POND
W/ IMPERVIOUS LINER
4
1
4
1
(P) 1' DEEP
TRENCH @ -0.50%
POND LINER &
SURFACING NOT
SHOWN FOR CLARITY
REFERENCE 4302 TO 4305
FOR PROPOSED SLOPES
TANKS AND UNDERDRAINS
NOT PICTURED FOR CLARITY
3
1
3
1ELEVATION (FEET)STATION (FEET)
804.0
806.0
808.0
810.0
812.0
814.0
816.0
818.0
820.0
822.0
824.0
826.0
828.0
830.0
804.0
806.0
808.0
810.0
812.0
814.0
816.0
818.0
820.0
822.0
824.0
826.0
828.0
830.0
0+00 0+10 0+20 0+30 0+40 0+50 0+60 0+70 0+80 0+90 1+00 1+10 1+20 1+30 1+40 1+50 1+60 1+70 1+80 1+90 2+00 2+10 2+20 2+30 2+40 2+50 2+60 2+70 2+80 2+90 3+00 3+10 3+20 3+30 3+40 3+50 3+60 3+70 3+80 3+90 4+00 4+10 4+20 4+30 4+40 4+50 4+60 4+70 4+80 4+90 5+00 5+10 5+20
EXISTING FENCE
DENOTES FILL (TYP.)
EXISTING GRADE
PROPOSED GRADE
(P) 1' DEEP
TRENCH @ -0.50%
PROPOSED CONCRETE DRAINAGE PAN
REF. SECTION E ON SHEET 4308
TANKS AND UNDERDRAINS
NOT PICTURED FOR CLARITY
REFERENCE 4302 TO 4305
FOR PROPOSED SLOPES
REFERENCE 4302 TO 4305
FOR PROPOSED SLOPES
2
1
2
1
3
1
UNDERDRAIN NOT
PICTURED FOR CLARITY
SERVICE CENTER:
CAD FILE NAME:
BY
DRAWINGREVISIONS
NO.DESCRIPTION DATE
DESIGNED BY:
APPROVED BY:
CHECKED BY:
DRAWN BY:
TYPE:
LOCATION:
DIVISION:CITY/COUNTY :IN SERVICE DATE:
HISTORY DATE
FLOC:
®
SIBLEY PROPANE PLANT
GRADING PROFILES AND DETAILS 4307
0
D1_4306_Sibley Mounding.dwg
NORTHERN MENDOTA HEIGHTS / DAKOTA FACILITY
UNIT 00
GU-SPG
NORTHERN STATES POWER COMPANY
MR 05/24/2024
IFC 05/24/2024
IFC 05/24/2024
0 ISSUED FOR CONSTRUCTION MR 05/24/2024
PROFESSIONAL ENGINEER
I hereby certify that this plan, specification, or
report was prepared by me or under my direct
supervision and that I am a duly Licensed
Professional Engineer under the Laws of the
state of Minnesota.
Signature:
Typed or Printed Name: Isaac Francis Cohrs
Date: License Number: 5910605/24/2024
Page 54 of 68
6"-THICK LAYER OF COMPACTED SAND
OR CRUSHED STONE BEDDING
COMPACTED SUBGRADE
INV. OF DRAINAGE PAN
FG (FINISHED GRADE) ELEVATION
AS DEPICTED ON PLANS
SEE PLAN
TAPER CRUSHED STONE
SURFACE SO THAT AB SHALL BE
FLUSH WITH TOP OF DRAIN PAN
4'-WIDE X 3"-DEEP X 6"-THICK 4500 PSI
DRAINAGE PAN W/ CJ'S AT 5' O.C.
-1% MIN. FOR AB SURFACE TO
DAYLIGHT AT EDGE OF PAN
4X4 - W12XW12 WWR AT CENTER DEPTH (TYP.)
SEPARATION & REINFORCEMENT GEOTEXTILE
4"-THICK AGGREGATE BASE COURSE
2"-THICK CRUSHED STONE4'-0"
8"1'-8"1'-8"6"3"1
2"-THICK CRUSHED STONE
4"-THICK AGGREGATE BASE COURSE
SEPARATION & REINFORCEMENT
GEOTEXTILE
NOTE:
1.RETAINING WALL FOUNDATION (BY STRUCTURAL)
IS SHOWN FOR REFERENCE ONLY.
COMPACTED SUBGRADE
(P) 81 LF RET. WALL (3.85' MAX. HEIGHT)
(FOR REFERENCE ONLY)
2
FG (FINISHED GRADE) ELEVATION AS DEPICTED ON PLANS
SEPARATION & REINFORCEMENT
GEOTEXTILE
(P) 3" D50 RIPRAP 6"-THICK
(P) 12" DIA. PERF. UNDERDRAINS @ -1% MIN.
SLOPE TO DAYLIGHT (TYP.)
3/4" CRUSHED STONE
CONTINUE GEOTEXTILE UP TO TOP
OF RETAINING WALL MINUS 4"
-3% SLOPE MIN.
2'-0"6"VARIES(6" MIN.)VARIES
SEE PLAN
SEE PLANSEE PLAN SEE PLAN
12"-DEEP, 5'-LONG
MOUNDING KEYWAY
EXISTING GRADE
TANK DIAMETER AND TANK
GROUND CLEARANCE VARY
2"-THICK CRUSHED STONE
4"-THICK AGGREGATE
BASE COURSE
1.5
1
(P) 3" D50 RIPRAP 6"-THICK LAYER
OVER SEPARATION GEOTEXTILE
SEPARATION & REINFORCEMENT GEOTEXTILE
2'-0"6"5'-0"
1'-0"12" MIN12" MIN1'-0"SEE STRUCTURAL
FG (FINISHED GRADE) ELEVATION
AS DEPICTED ON PLANS
3'-WIDE CONCRETE WALK PER
STRUCTURAL SPECIFICATIONS
SEE PLAN
(P) HDPE CULVERT @ -0.8% MIN. SLOPE (TYP.)
DAYLIGHT UNDER WALKWAY
SEE PLANS FOR CULVERT SIZE AND LENGTHS
NOTE:
1.ALL 12" DIA. CULVERTS SHALL HAVE FLARED END SECTIONS PROVIDED
(NOT DEPICTED) EXCEPT AT RUNDOWN DAYLIGHT LOCATIONS.
(P) PERF. UNDERDRAINS @ -1% MIN. SLOPE TO DAYLIGHT (TYP.).
SEE PLANS FOR PIPE DIAMETER COMPACTED SUBGRADE
SEPARATION & REINFORCEMENT
GEOTEXTILE
3/4" CRUSHED STONE
(P) 3" D50 RIPRAP 6"-THICK
LAYER OVER SEPARATION &
REINFORCEMENT GEOTEXTILE
SEPARATION & REINFORCEMENT
GEOTEXTILE
3'-0"1'-6"VARIES6"1'-6"
1
2
SEE PLAN SEE STRUCTURAL
FG (FINISHED GRADE) ELEVATION
AS DEPICTED ON PLANS
SEPARATION & REINFORCEMENT
GEOTEXTILE
COMPACTED SUBGRADE
6"-THICK LAYER OF COMPACTED SAND
OR CRUSHED STONE BEDDING
3'-WIDE CONCRETE WALK PER
STRUCTURAL SPECIFICATIONS
(P) 3" D50 RIPRAP 6"-THICK
(P) 3" D50 RIPRAP 6"-THICK
LAYER OVER SEPARATION &
REINFORCEMENT GEOTEXTILE
SEPARATION & REINFORCEMENT
GEOTEXTILE
4'-0"
3'-0"
NOTE:
1.REFER TO SHEET 4003 FOR FILL MATERIAL AND SOIL
COMPACTION CRITERIA.
SERVICE CENTER:
CAD FILE NAME:
BY
DRAWINGREVISIONS
NO.DESCRIPTION DATE
DESIGNED BY:
APPROVED BY:
CHECKED BY:
DRAWN BY:
TYPE:
LOCATION:
DIVISION:CITY/COUNTY :IN SERVICE DATE:
HISTORY DATE
FLOC:
®
SIBLEY PROPANE PLANT
GRADING AND DRAINAGE DETAILS 4308
0
D1_4308_Sibley Mounding.dwg
NORTHERN MENDOTA HEIGHTS / DAKOTA FACILITY
UNIT 00
GU-MPG
NORTHERN STATES POWER COMPANY
MR 05/24/2024
IFC 05/24/2024
IFC 05/24/2024
0 ISSUED FOR CONSTRUCTION MR 05/24/2024
PROFESSIONAL ENGINEER
I hereby certify that this plan, specification, or
report was prepared by me or under my direct
supervision and that I am a duly Licensed
Professional Engineer under the Laws of the
state of Minnesota.
Signature:
Typed or Printed Name: Isaac Francis Cohrs
Date: License Number: 5910605/24/2024
Page 55 of 68
SEE PLAN
(P) PERF. UNDERDRAINS @ -1% MIN.
SLOPE TO DAYLIGHT (TYP.)
SEE PLANS FOR PIPE DIAMETER
COMPACTED SUBGRADE
EXTEND SEPARATION & REINFORCEMENT
GEOTEXTILE BENEATH CONTINUOUS
GEOTEXTILE A MINIMUM OF 2'-0"
FG (FINISHED GRADE) ELEVATION
AS DEPICTED ON PLANS
(P) 3" D50 RIPRAP 6"-THICK LAYER OVER
SEPARATION & REINFORCEMENTGEOTEXTILE
3/4" CRUSHED STONEVARIES(6" MIN.)SEPARATION & REINFORCEMENT GEOTEXTILE
CONTINUOUS OVER CRUSHED STONE LAYER
2'-0"6"1
REPLACED TOPSOIL LAYER TO
MATCH EXISTING GRADES
RIPRAP FABRIC OR SEPARATION &
REINFORCEMENT GEOTEXTILE
OVERLAID BY REPLACED TOPSOIL
REPAIRED & COMPACTED
SUBGRADE
10' BOT. WIDTH, 3:1 SIDE SLOPES, & 1' DEPTH - 18" D50
RIPRAP-LINED RUNDOWN & APRON @ BOT. IN 36" THICK
LAYER OVER RIPRAP FABRIC OR SEPARATION &
REINFORCEMENT GEOTEXTILE & REPAIRED SUBGRADE
REPLACED TOPSOIL LAYER.
MATCH ADJACENT DEPTH AND
RELATIVE COMPACTION.
3
3'-0"10'-0"3'-0"1'-0"3'-0"KEYWAY NOT PICTURED
FOR CLARITY
IMPERVIOUS POND
LINER. EXTEND BENEATH
FOREBAY BY 2' MIN.
3" D50 RIPRAP IN 6" LAYER
POND SURFACING
6' BOT. WIDTH X 9" D50 RIPRAP IN 36" LAYER OVER
SEPARATION & REINFORCEMENT GEOTEXTILE
PERFORATED UNDERDRAIN
DAYLIGHT WITHIN RUNDOWN
3/4" CRUSHED STONE
IMPERVIOUS POND LINER W/ SEAL
TO TOP OF CURB, EXTEND TO ELEV.
814.5' MIN BENEATH SEPARATION &
REINFORCEMENT GEOTEXTILE
SEPARATION &
REINFORCEMENT GEOTEXTILE
3" D50 RIPRAP IN 6" LAYER
MOUND SURFACING
8" DEEP CONCRETE FOREBAY
12" TALL X 8" LONG X 6" WIDE
CONCRETE TEETH @ 16" O.C.
FOR RIPRAP TOE TERMINATION
4
1
3
1 CHANGE IN RUNDOWN SLOPE
OCCURS AT ELEV 814.00'
6"-THICK LAYER OF
COMPACTED SAND OR
CRUSHED STONE BEDDING
SEPARATION & REINFORCEMENT
GEOTEXTILE
**
REINFORCE CONCRETE FOREBAY W/ 4X4 -
W12XW12 WWR AT CENTER DEPTH (TYP.)
(2) #4/GR60 W/ STD. HOOKS INTO
WWR LAYER EA. TOOTH (TYP.)6"6"6"14'-0"6"7'-0" (SECTION CUT ON ANGLE)**SECTION
CUT ON
ANGLE
2'-0"
4'-0"8"12"8" SEPARATION &
REINFORCEMENT GEOTEXTILE
2'-0"
IMPERVIOUS POND LINER PATCH SEALED TO
FACE OF FOREBAY, OVERLAP BOTH FABRIC
LAYERS WITHIN POND 2' MIN.
11 44
(P) 9" D50 RIPRAP 36"-THICK LAYER
OVER COMPACTED SUBGRADECOMPACTED SUBGRADE
(P) 12" DIA. PERF. UNDERDRAINS @ -1% MIN.
SLOPE TO DAYLIGHT. (TYP.)
WITH CRUSHED STONE WRAPPED WITH
SEPARATION & REINFORCEMENT GEOTEXTILE
(P) 3" D50 RIPRAP 6"-THICK
3/4" CRUSHED STONE
FG (FINISHED GRADE) ELEVATION
AS DEPICTED ON PLANS
SEPARATION & REINFORCEMENT GEOTEXTILE
CONTINUOUS OVER CRUSHED STONE LAYER
EXTEND SEPARATION & REINFORCEMENT
GEOTEXTILE BENEATH CONTINUOUS
GEOTEXTILE A MINIMUM OF 2'-0"
6'-0"6'-0"6'-0"6"2'-0"VARIES(6" MIN.)NOTE:
1.REFER TO SHEET 4003 FOR FILL MATERIAL AND SOIL
COMPACTION CRITERIA.
SERVICE CENTER:
CAD FILE NAME:
BY
DRAWINGREVISIONS
NO.DESCRIPTION DATE
DESIGNED BY:
APPROVED BY:
CHECKED BY:
DRAWN BY:
TYPE:
LOCATION:
DIVISION:CITY/COUNTY :IN SERVICE DATE:
HISTORY DATE
FLOC:
®
SIBLEY PROPANE PLANT
GRADING AND DRAINAGE DETAILS 4309
0
D1_4308_Sibley Mounding.dwg
NORTHERN MENDOTA HEIGHTS / DAKOTA FACILITY
UNIT 00
GU-MPG
NORTHERN STATES POWER COMPANY
MR 05/24/2024
IFC 05/24/2024
IFC 05/24/2024
0 ISSUED FOR CONSTRUCTION MR 05/24/2024
PROFESSIONAL ENGINEER
I hereby certify that this plan, specification, or
report was prepared by me or under my direct
supervision and that I am a duly Licensed
Professional Engineer under the Laws of the
state of Minnesota.
Signature:
Typed or Printed Name: Isaac Francis Cohrs
Date: License Number: 5910605/24/2024
Page 56 of 68
11
33
(P) 9" D50 RIPRAP 18"-THICK LAYER
OVER COMPACTED SUBGRADE
COMPACTED SUBGRADE
(P) 3" D50 RIPRAP 6"-THICK
SEPARATION & REINFORCEMENT
GEOTEXTILE
FG (FINISHED GRADE) ELEVATION
AS DEPICTED ON PLANS
6'-0"3'-0"3'-0"
KEYWAY NOT PICTURED
FOR CLARITY
6' BOT. WIDTH X 9" D50 RIPRAP IN 36" LAYER OVER
SEPARATION & REINFORCEMENT GEOTEXTILE
PERFORATED UNDERDRAIN
DAYLIGHT WITHIN RUNDOWN
3/4" CRUSHED STONE
IMPERVIOUS POND LINER W/ SEAL
TO TOP OF CURB, EXTEND TO ELEV.
814.50' MIN BENEATH SEPARATION &
REINFORCEMENT GEOTEXTILE
SEPARATION &
REINFORCEMENT GEOTEXTILE
8" DEEP CONCRETE FOREBAY
12" TALL X 8" LONG X 6" WIDE
CONCRETE TEETH @ 16" O.C.
FOR RIPRAP TOE TERMINATION
4
1
3
1 CHANGE IN RUNDOWN SLOPE
OCCURS AT ELEV 814.00'
6"-THICK LAYER OF
COMPACTED SAND OR
CRUSHED STONE BEDDING
3" D50 RIPRAP IN 6" LAYER
MOUND SURFACING
SEPARATION & REINFORCEMENT
GEOTEXTILE
(2) #4/GR60 W/ STD. HOOKS INTO
WWR LAYER EA. TOOTH (TYP.)
REINFORCE CONCRETE FOREBAY W/ 4X4 -
W12XW12 WWR AT CENTER DEPTH (TYP.)6"6"6"14'-0"6"9'-6"6"
4'-0"8"12"8" SEPARATION &
REINFORCEMENT GEOTEXTILE
IMPERVIOUS POND LINER.
EXTEND BENEATH FOREBAY
BY 2' MIN.
3" D50 RIPRAP IN 6" LAYER
POND SURFACING
2'-0"
2'-0"
IMPERVIOUS POND LINER PATCH SEALED TO
FACE OF FOREBAY, OVERLAP BOTH FABRIC
LAYERS WITHIN POND 2' MIN.
1
1
3
3
(P) 9" D50 RIPRAP 36"-THICK LAYER
OVER COMPACTED SUBGRADE
(P) 12" DIA. PERF. UNDERDRAINS @ -1% MIN.
SLOPE TO DAYLIGHT. (TYP.)
WITH CRUSHED STONE WRAPPED WITH
SEPARATION & REINFORCEMENT GEOTEXTILE
(P) 3" D50 RIPRAP 6"-THICK
3/4" CRUSHED STONE
FG (FINISHED GRADE) ELEVATION
AS DEPICTED ON PLANS
COMPACTED SUBGRADE
EXTEND SEPARATION & REINFORCEMENT
GEOTEXTILE BENEATH CONTINUOUS
GEOTEXTILE A MINIMUM OF 2'-0"
SEPARATION & REINFORCEMENT GEOTEXTILE
CONTINUOUS OVER CRUSHED STONE LAYER
6'-0"6'-0"6'-0"
2'-0"6"VARIES(6" MIN.)SEE PLAN, -1.0% MIN.
FG (FINISHED GRADE) ELEVATION AS
DEPICTED ON PLANS
FL (FLOWLINE) ELEVATION AS DEPICTED ON PLANS
COMPACTED SUBGRADE
HS-20/HL-93 TRAFFIC-RATED GRATING
1
2" BITUMINOUS JOINT FILLER (TYP.)
ASPHALT SURFACING TO MATCH EXISTING ASPHALT
THICKNESS OR 2" MIN., WHICHEVER IS GREATER.
4" LAYER OF AB OVER MIRAFI RS380i FABRIC
(TYP.)
#4 @ 6" EW 6" LAYER OF COMPACTED SAND OR CRUSHED
STONE BEDDING
3
8" Ø x 4 1
8" NELSON STUDS
@ 18" O.C. (OR EQUIVALENT)
1
4" BENT PLATE3 1
2"3 1
2"
4 1
2"
SEE PLAN, -1.0% MIN.
2'-6"8"8"1'-6"(MIN)1"312"312"9"3"VARIES VARIES
4500 PSI CONCRETE TRENCH
SEPARATION &
REINFORCEMENT GEOTEXTILE
SEE PLAN
FG (FINISHED GRADE) ELEVATION
AS DEPICTED ON PLANS
FL (FLOWLINE) ELEVATION
AS DEPICTED ON PLANSCOMPACTED SUBGRADE
#4 @ 6" EW
6" LAYER OF COMPACTED SAND
OR CRUSHED STONE BEDDING
CRUSHED STONE OVER AGGREGATE
BASE COURSE OVER SEPARATION &
REINFORCEMENT GEOTEXTILE
-1% MIN. FOR AB SURFACE TO
DAYLIGHT AT EDGE OF TRENCH
4500 PSI CONCRETE TRENCH
2'-6"8"8"1'-0"(MIN)1"9"3" SEPARATION &
REINFORCEMENT GEOTEXTILE
-1% MIN. FOR AB SURFACE TO
DAYLIGHT AT EDGE OF TRENCH
NOTE:
1.REFER TO SHEET 4003 FOR FILL MATERIAL AND SOIL
COMPACTION CRITERIA.
SERVICE CENTER:
CAD FILE NAME:
BY
DRAWINGREVISIONS
NO.DESCRIPTION DATE
DESIGNED BY:
APPROVED BY:
CHECKED BY:
DRAWN BY:
TYPE:
LOCATION:
DIVISION:CITY/COUNTY :IN SERVICE DATE:
HISTORY DATE
FLOC:
®
SIBLEY PROPANE PLANT
GRADING AND DRAINAGE DETAILS 4310
0
D1_4308_Sibley Mounding.dwg
NORTHERN MENDOTA HEIGHTS / DAKOTA FACILITY
UNIT 00
GU-MPG
NORTHERN STATES POWER COMPANY
MR 05/24/2024
IFC 05/24/2024
IFC 05/24/2024
0 ISSUED FOR CONSTRUCTION MR 05/24/2024
NOTES:
1.TRENCH DESIGN:
a.4,500 PSI CONCRETE.
b.ALL REINFORCEMENT SHALL BE MINIMUM 3" FROM OUTER FACE.
c.IMPACT CHANNEL SHALL BE A BENT STEEL PLATE, ASTM A36 MATERIAL. SEE
SECTION FOR DIMENSIONS.
d.VEHICLE-RATED GRATING SHALL SUPPORT HS-20/HL-93 LOADS. 19W4 SPACING,
3- 12" DEEP BY 1 4" THICK BEARING BARS AT 1-3 16" SPACING RECOMMENDED. BAR
GRATING MATERIAL SHALL BE HDG.
2.TRENCH CONSTRUCTION:
a.CONTRACTOR TO INSTALL A KEYED JOINT AT EVERY 20'-0" OF SPACING. PAINT
WITH A CURING COMPOUND BEFORE ADJACENT SLAB OR WALL IS PLACED.
PROFESSIONAL ENGINEER
I hereby certify that this plan, specification, or
report was prepared by me or under my direct
supervision and that I am a duly Licensed
Professional Engineer under the Laws of the
state of Minnesota.
Signature:
Typed or Printed Name: Isaac Francis Cohrs
Date: License Number: 5910605/24/2024
Page 57 of 68
TOP OF FOOTING/BOT. OF
MICROPOOL
806.42'
POND BOTTOM
LOWER ORIFICE INV.
809.50'
GRATE 813.75'
OUTLET INVERT
808.50'
UPPER ORIFICE INV.
810.50'
12"W x 4"T RECT. WEIR INV.
812.67'
POND OUTLET STRUCTURE W/
MICROPOOL
GRATE: 813.75'
INV. OUT: 808.50'
(P) 18" DIA. HDPE W/
SMOOTH INTERIOR
POND OUTLET PIPINGFLOW
POND OUTLET PIPING
4500 PSI CONC. FTG. PAD W/ #4/GR60 REINF.
@ 12" O.C. EA. WAY @ BOT. PROVIDE MIN. 3"
COVER OVER REBAR FOR CONC. IN
PERMANENT CONTACT WITH SOIL (TYP.)
NO. 93 JOHNSON VEE WIRE STAINLESS STEEL
WQ SCREEN W/ INTERMITTENT WELDS TO
3x3x3
16" THICK ANGLE FRAME. ATTACH FRAME
TO FACE OF CONCRETE W/ 5
8" DIA. REDHEAD
LDT W/ 23
4" EMBED. @ 12" O.C. MAX
WALL REINF. TO BE #4/GR60 @ 12"
O.C. EA. WAY W/ (2) CONT. #5/GR60
@ TOP & BOT. (TYP.)
#4/GR60 DOWELS @ VERTICAL WALL
REINF. SPACING (TYP.) PROVIDE 24" MIN.
LEG INTO WALL & MIN. 6" LEG ON 90°
HOOK INTO FTG. (TYP.)
L 3x3x3
8" THICK A36 STEEL (HDG) ANGLES EA. SIDE OF
OPENING. BEVEL INSIDE CORNER OF TOP OF CONCRETE
WALLS TO ALLOW FOR ANGLE INSIDE RADIUS.
DENOTES 1-1
4" DIA. STD. WEIGHT STEEL
PIPES @ 6" O.C. W/ ALL-AROUND 1
8" FILLET
WELD TO ANGLE @ EA. SIDE (TYP.)
DENOTES CONC.
WALL BEYOND 12"
SCREEN/ORIFICE
PLATE OPENING
SLOPE TOP OF
HALF WALL
TOWARD M.P.
4" MIN. SLAB TO
OUTLET
DENOTES 3
8" THICK SS ORIFICE PLATE W/ NEOPRENE GASKET
BETWEEN PLATE AND CONCRETE. ATTACH TO CONCRETE W/ 5
8"
DIA. REDHEAD LDT W/ 23
4" EMBED. @ 12" O.C. MAX.
DENOTES CONC.
OPENING BEYOND PLATE
ANCHORAGE HOLES IN PLATE
TO BE 1" FROM CL OF HOLE TO
EDGE OF PLATE AS DEPICTED
NO. 93 JOHNSON VEE WIRE
STAINLESS STEEL WQ SCREEN W/
INTERMITTENT WELDS TO 3x3x3
16"
THICK ANGLE FRAME. ATTACH
FRAME TO FACE OF CONCRETE W/
5
8" DIA. REDHEAD LDT W/ 23
4" EMBED.
@ 12" O.C. MAX
ANCHORAGE HOLES IN
FRAME TO BE 1" FROM CL OF
HOLE TO EDGE OF ANGLE AS
DEPICTED
DENOTES 3
8" THICK SS ORIFICE PLATE
W/ NEOPRENE GASKET BETWEEN
PLATE AND CONCRETE. ATTACH TO
CONCRETE W/ 5
8" DIA. REDHEAD LDT W/
23
4" EMBED. @ 12" O.C. MAX.
SURFACE OF
MICROPOOL BOT.
SURFACE OF FOOTING
3'x3'
3'x4'
NO. 93 JOHNSON VEE WIRE
STAINLESS STEEL WQ SCREEN W/
INTERMITTENT WELDS TO 3x3x3
16"
THICK ANGLE FRAME. ATTACH
FRAME TO FACE OF CONCRETE W/
5
8" DIA. REDHEAD LDT W/ 23
4" EMBED.
@ 12" O.C. MAX
L 3x3x3
8" THICK A36 STEEL (HDG)
ANGLES EA. SIDE OF OPENING.
BEVEL INSIDE CORNER OF TOP OF
CONCRETE WALLS TO ALLOW FOR
ANGLE INSIDE RADIUS.
DENOTES 1-1
4" DIA. STD. WEIGHT
STEEL PIPES @ 6" O.C. W/
ALL-AROUND 1
8" FILLET WELD TO
ANGLE @ EA. SIDE (TYP.)
5
8" DIA. ANCHOR W/ 6" MIN. EMBED.
4" FROM EACH CORNER OF
OPENING. (4 TOTAL ANCHORS)
W/ 6x3x5
16" THICK BENT PLATE FOR
CLAMPING GRATE
DENOTES 3
8" THICK SS ORIFICE PLATE
W/ NEOPRENE GASKET BETWEEN
PLATE AND CONCRETE. ATTACH TO
CONCRETE W/ 5
8" DIA. REDHEAD LDT
W/ 23
4" EMBED. @ 12" O.C. MAX
3"∅
4"∅
FREE-DRAINING BACKFILL
OR CLSM WITHIN BOX.
PROVIDE WEEP HOLES IN
BOX, EA. FACE OF WALL
TOP OF CONC. WALL
BEYOND
3" D50 RIPRAP IN 6" LAYER OVER
SEPARATION & REINFORCEMENT
GEOTEXTILE
3" D50 RIPRAP IN 6" LAYER OVER
SEPARATION & REINFORCEMENT
GEOTEXTILE
2" DIA. PVC THROUGH MICROPOOL WALL
W/ INV.'S @ POND LINER ELEVATION
(6) 2" DIA. PVC THROUGH MICROPOOL
WALL W/ INV.'S @ POND LINER ELEVATION
18"4"12" O.C.MAX1"12" O.C.MAX6'-0"3"3"12" WELL
SCREEN
WIDTH
1"
3'-0"8"4'-2"4"12"
5'-4"
6"4'-4"6"10'-0"6"4'-8"4'-4"6"8"4'-0"8"3'-0"8"12" IMPERVIOUS POND LINER W/ SEALED
ATTACHMENT TO CONCRETE
6" LAYER OF COMPACTED SAND OR CRUSHED
STONE BEDDING
IMPERVIOUS POND LINER W/ SEAL TO TOP OF CURB, EXTEND TO ELEV. 814.5' MIN BENEATH SEPARATION & REINFORCEMENT GEOTEXTILE
IMPERVIOUS POND LINER
W/ SEALED ATTACHMENT
TO CONCRETE
SERVICE CENTER:
CAD FILE NAME:
BY
DRAWINGREVISIONS
NO.DESCRIPTION DATE
DESIGNED BY:
APPROVED BY:
CHECKED BY:
DRAWN BY:
TYPE:
LOCATION:
DIVISION:CITY/COUNTY :IN SERVICE DATE:
HISTORY DATE
FLOC:
®
SIBLEY PROPANE PLANT
GRADING AND DRAINAGE DETAILS 4311
0
D1_4308_Sibley Mounding.dwg
NORTHERN MENDOTA HEIGHTS / DAKOTA FACILITY
UNIT 00
GU-MPG
NORTHERN STATES POWER COMPANY
MR 05/24/2024
IFC 05/24/2024
IFC 05/24/2024
0 ISSUED FOR CONSTRUCTION MR 05/24/2024
PROFESSIONAL ENGINEER
I hereby certify that this plan, specification, or
report was prepared by me or under my direct
supervision and that I am a duly Licensed
Professional Engineer under the Laws of the
state of Minnesota.
Signature:
Typed or Printed Name: Isaac Francis Cohrs
Date: License Number: 5910605/24/2024
Page 58 of 68
>>>10'-0"6'-0"8'-0"
6'-0"
(P) 6' WIDE BOT. WIDTH X 9" D50 IN 36" LAYER RIPRAP
RUNDOWN OVER SEPARATION & REINFORCEMENT
GEOTEXTILE AT SLOPES DEPICTED.
(P) 8" DEEP CONCRETE FOREBAY W/
VERTICAL TEETH AND RIPRAP OVERLAIN
V NOTCH
INV. 809.74'
MIN. TOP OF
CURB 810.41'-0.50% TOOUTLETRIPRAP TOE
ELEV. 809.80'
RIPRAP TOE
ELEV. 809.80'
12"X12" THICKENED EDGE AT PAN
TERMINATION AT RIPRAP (TYP.)
LIMIT OF POND TOP
LIMIT OF POND TOP
(P) 6' WIDE BOT. WIDTH X 9" D50 IN 36" LAYER RIPRAP
RUNDOWN OVER SEPARATION & REINFORCEMENT
GEOTEXTILE AT SLOPES DEPICTED.
-3:
1 -4:1-4:1-3:1-3:1-3:1
LIMIT OF POND BOTTOM
12" TALL X 8" LONG X 6" WIDE CONCRETE TEETH
@ 16" O.C. FOR RIPRAP TOE TERMINATION
2' X 1' CONCRETE SPLASH
PAD @ V-NOTCH OUTLET
(P) 6'X4' ENERGY DISSIPATION PAD WITH 9" D50 RIPRAP
18"-THICK LAYER OVER SEPARATION & REINFORCEMENT
GEOTEXTILE OVER IMPERVIOUS POND LINER12'-2"1'-11"4'-9"15'-7"11'-5"12'-0"12'-10"25'-0"10'-9"34'-3"2'-9"4'-1"17'-5"6'-0"5'-7"
2'-0"12"6'-0"4'-9"4'-0"6'-
8
"
CONSTRUCTED TERMINATION OF
RIPRAP TO BE AT UPHILL SIDE OF TEETH
(TYP.)
-0.50%
MATCH POND BOTTOM
ELEVATION @ INVERT OF WEIR
6" LAYER OF COMPACTED SAND
OR CRUSHED STONE BEDDING
6" MIN. BOT. THICKNESS
-0.50%
4500 PSI CONCRETE
FOREBAY
REINFORCE CONCRETE FOREBAY
W/ 4X4 - W12XW12 WWR AT CENTER
DEPTH (TYP.)8"55°
IMPERVIOUS POND LINER
SEPARATION & REINFORCEMENT
GEOTEXTILE
NOTE:
1.REFER TO SHEET 4003 FOR SOIL COMPACTION CRITERIA.
SERVICE CENTER:
CAD FILE NAME:
BY
DRAWINGREVISIONS
NO.DESCRIPTION DATE
DESIGNED BY:
APPROVED BY:
CHECKED BY:
DRAWN BY:
TYPE:
LOCATION:
DIVISION:CITY/COUNTY :IN SERVICE DATE:
HISTORY DATE
FLOC:
®
SIBLEY PROPANE PLANT
GRADING AND DRAINAGE DETAILS 4312
0
D1_4308_Sibley Mounding.dwg
NORTHERN MENDOTA HEIGHTS / DAKOTA FACILITY
UNIT 00
GU-MPG
NORTHERN STATES POWER COMPANY
MR 05/24/2024
IFC 05/24/2024
IFC 05/24/2024
0 ISSUED FOR CONSTRUCTION MR 05/24/2024
PROFESSIONAL ENGINEER
I hereby certify that this plan, specification, or
report was prepared by me or under my direct
supervision and that I am a duly Licensed
Professional Engineer under the Laws of the
state of Minnesota.
Signature:
Typed or Printed Name: Isaac Francis Cohrs
Date: License Number: 5910605/24/2024
Page 59 of 68
>>>>>>>>>>>V NOTCH
INV. 810.04'
MIN. TOP OF
CURB 810.71'
-0.50% TO
OUTLET
RIPRAP TOE
ELEV. 810.07'
DRAINAGE PAN
ENTRANCE TO RUNDOWN
CURBS ALONG DRAINAGE PAN TO RETAIN
THE 8" STORAGE DEPTH IN FOREBAY
17' X 13' X 8" DEEP CONCRETE FOREBAY W/
VERTICAL TEETH AND RIPRAP OVERLAIN
AND 3" V-NOTCH TOP WIDTH
REINFORCE CONCRETE FOREBAY W/ 4X4 -
W12XW12 WWR AT CENTER DEPTH (TYP.)(P) 6' WIDE BOT. WIDTH X 9" D50 IN
18" LAYER RIPRAP RUNDOWN OVER
SEPARATION & REINFORCEMENT
GEOTEXTILE AT SLOPES DEPICTED
-4:1-3:1-3:112" TALL X 8" LONG X 6" WIDE CONCRETE TEETH
@ 16" O.C. FOR RIPRAP TOE TERMINATION
-0.8%-0.8%
LIMIT OF POND BOTTOM
LIMIT OF POND TOP
2'-0"12"13'-0"6'-0"4'-0"3'-6"9'-0"4'-0"3'-0"6'-0"3'-0"4'-0"
17'-0"8"6"8"4'-0"4'-5"2'-2"
-0.50%
POND BOTTOM
2' x 1' CONCRETE SPLASH
PAD @ V-NOTCH OUTLET
6"-THICK LAYER OF COMPACTED
SAND OR CRUSHED STONE BEDDING
6" MIN. BOT. THICKNESS2
1
SEPARATION &
REINFORCEMENT GEOTEXTILE
REINFORCE CONCRETE FOREBAY
W/ 4X4 - W12XW12 WWR AT CENTER
DEPTH (TYP.)
6"-THICK LAYER OF COMPACTED SAND
OR CRUSHED STONE BEDDING
4'-WIDE X 3"-DEEP X 6"-THICK 4500 PSI
DRAINAGE PAN W/ CJ'S AT 5' O.C.
4X4 - W12XW12 WWR AT CENTER DEPTH (TYP.)
12" TALL X 8" LONG X 6" WIDE CONCRETE TEETH
@ 16" O.C. FOR RIPRAP TOE TERMINATION
TOP OF FOREBAY CURB BEYOND
(P) 6' WIDE BOT. WIDTH X 9" D50 IN 18" LAYER RIPRAP
RUNDOWN OVER SEPARATION & REINFORCEMENT
GEOTEXTILE AT SLOPES DEPICTED
(P) 6'x4' ENERGY DISSIPATION PAD WITH 9" D50
RIPRAP 18"-THICK LAYER OVER SEPARATION &
REINFORCEMENT GEOTEXTILE OVER
IMPERVIOUS POND LINER. EXTEND POND
LINER BENEATH FOREBAY BY 2' MIN.
IMPERVIOUS POND LINER.
3" D50 RIPRAP IN 6"
LAYER POND SURFACING
(2) #4/GR60 W/ STD. HOOKS INTO
WWR LAYER EA. TOOTH (TYP.)8"6"12"6"6"7'-0"1'-6"6"
2'-0"
IMPERVIOUS POND LINER W/ SEAL TO TOP OF
CURB, EXTEND TO ELEV. 814.5' MIN. OR 2' MIN.
PAST TOP OF BANK BENEATH SEPARATION &
REINFORCEMENT GEOTEXTILE
IMPERVIOUS POND LINER PATCH SEALED TO
FACE OF FOREBAY, OVERLAP BOTH FABRIC
LAYERS WITHIN POND 2' MIN.
2'-0"SEPARATION & REINFORCEMENT
GEOTEXTILE
12"X12" THICKENED EDGE
@ PAN TERMINATION (TYP.)
12"12"1
1
-0.50%
MATCH POND BOTTOM
ELEVATION @ INVERT OF WEIR
POND BOTTOM
6" LAYER OF COMPACTED SAND
OR CRUSHED STONE BEDDING
POND BOTTOM
IMPERVIOUS POND LINER.
EXTEND BENEATH FOREBAY BY 2' MIN.
6" MIN. BOT. THICKNESS
-0.50%
4500 PSI CONCRETE
FOREBAY
REINFORCE CONCRETE FOREBAY
W/ 4X4 - W12XW12 WWR AT CENTER
DEPTH (TYP.)IMPERVIOUS POND LINER. EXTEND
BENEATH FOREBAY BY 2' MIN.
3" D50 RIPRAP IN 6" LAYER POND SURFACING
6"6"8"2'-0"2'-0"
20°
2'-0"
IMPERVIOUS POND LINER PATCH
SEALED TO FACE OF FOREBAY,
OVERLAP BOTH FABRIC LAYERS
WITHIN POND 2' MIN.
SEPARATION & REINFORCEMENT
GEOTEXTILE
2'-0"
IMPERVIOUS POND LINER PATCH SEALED TO
FACE OF FOREBAY, OVERLAP BOTH FABRIC
LAYERS WITHIN POND 2' MIN.>>>>>>>>>>>>>>>4' PERIMETER AROUND FOREBAY 9" D50
SOIL-FILLED RIPRAP IN 18" THICK LAYER OVER
PERMEABLE/NONWOVEN SEPARATION FABRIC
24.5' X 11' CONCRETE FOREBAY W/
6" CURB HEIGHT ALONG WEST END.
V-NOTCH INVERT EL: 805.29'
TOP OF CURB EL: 805.79'
-0.5%-0.50% TO
OUTLET-0.5%-0.5%(P) 110 LF - 18" DIA. HDPE W/ SMOOTH INTERIOR POND OUTLET
PIPING @ -1.00% MIN. WITH 18" COVER. VERIFY OUTLET LOCATION
OF EXISTING CULVERT IN FIELD & PROVIDE FLARED END SECTIONS
(P) 30" WIDE CONCRETE
TRENCH (TYP.)
V NOTCH
INV. 805.29'
MIN. TOP OF
CURB 805.79'
TRENCH FLOWLINE AT
FOREBAY ENTRANCE
ELEV. : 805.42'11'-0"25'-0"3'-7"3'-10"3'-7"2'-6"6'-0"2'-6"4'-0"1'-4"1'-4"
-0.50%
2' x 1' CONCRETE SPLASH
PAD @ V-NOTCH OUTLET
6"-THICK LAYER OF COMPACTED
SAND OR CRUSHED STONE BEDDING
6" MIN. BOT. THICKNESS2
1
REINFORCE CONCRETE FOREBAY
W/ 4X4 - W12XW12 WWR AT CENTER
DEPTH (TYP.)
(P) 6'x4' ENERGY DISSIPATION PAD WITH 9" D50 SOIL-FILLED
RIPRAP 18"-THICK LAYER OVER RIPRAP FABRIC OR SEPARATION
& REINFORCEMENT GEOTEXTILE & REPAIRED SUBGRADE6"6"12"6"6"7'-0"1'-6"-0.50%
6" LAYER OF COMPACTED SAND OR
CRUSHED STONE BEDDING
COMPACTED SUBGRADE
FL (FLOWLINE) ELEVATION
AS DEPICTED ON PLANS
FG (FINISHED GRADE)/ TRENCH TOP
ELEVATION AS DEPICTED ON PLANS(P) 4' PERIMETER AROUND FOREBAY & CULVERT INLET PROTECTION
- 9" D50 SOIL-FILLED RIPRAP IN 18" THICK LAYER OVER RIPRAP
FABRIC OR SEPARATION & REINFORCEMENT GEOTEXTILE
EXTEND SEPARATION &
REINFORCEMENT GEOTEXTILE
FABRIC BENEATH FOREBAY
45°
11'-0"
24.5' X 11' CONCRETE FOREBAY W/
6" CURB HEIGHT ALONG WEST END.
V-NOTCH INVERT EL: 805.29'
TOP OF CURB EL: 805.79'
V-NOTCH INV. : 805.29'6"6" LAYER OF COMPACTED SAND
OR CRUSHED STONE BEDDING
EXTEND CONCRETE CURB INTO RIPRAP
LINING TO PREVENT BYPASS OF V-NOTCH
OVERLAP GEOTEXTILE 2'-0"
MIN. UNDER FOREBAY
6" MIN. BOT. THICKNESS
4' PERIMETER AROUND FOREBAY 9" D50
SOIL-FILLED RIPRAP IN 18" THICK LAYER
RIPRAP FABRIC OR SEPARATION &
REINFORCEMENT GEOTEXTILE 4'-0"
SEPARATION FABRIC OVERLAID BY
REPLACED TOPSOIL/GRAVEL/ASPHALT
4'-0"
AS REQ'DAS REQ'D
-0.50%-0.50%
EXTEND SLAB & CURB
THROUGH RIPRAP LAYER TO
SOIL TO PREVENT BYPASS
0.5% SLOPE TO V-NOTCH
OUTLET ALONG FLOWLINE
1'-4"
NOTE:
1.REFER TO SHEET 4003 FOR SOIL COMPACTION CRITERIA.
SERVICE CENTER:
CAD FILE NAME:
BY
DRAWINGREVISIONS
NO.DESCRIPTION DATE
DESIGNED BY:
APPROVED BY:
CHECKED BY:
DRAWN BY:
TYPE:
LOCATION:
DIVISION:CITY/COUNTY :IN SERVICE DATE:
HISTORY DATE
FLOC:
®
SIBLEY PROPANE PLANT
GRADING AND DRAINAGE DETAILS 4313
0
D1_4308_Sibley Mounding.dwg
NORTHERN MENDOTA HEIGHTS / DAKOTA FACILITY
UNIT 00
GU-MPG
NORTHERN STATES POWER COMPANY
MR 05/24/2024
IFC 05/24/2024
IFC 05/24/2024
0 ISSUED FOR CONSTRUCTION MR 05/24/2024
PROFESSIONAL ENGINEER
I hereby certify that this plan, specification, or
report was prepared by me or under my direct
supervision and that I am a duly Licensed
Professional Engineer under the Laws of the
state of Minnesota.
Signature:
Typed or Printed Name: Isaac Francis Cohrs
Date: License Number: 5910605/24/2024
Page 60 of 68
WWWWW W
OH OH OH OH OH OH OH OH OH OH
OHOHOHOHOHOHOHOHG G G G G GGGG G G G G GGGGG G G GSSSSSSSS
SSSSSSSSSSSSS
S
S
S
S
S
S
S xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx>>>>>>>>>>>>>>>>>>>>>>>>>>>>73574074575075576076577077578078579079581
5
81
5
820815815 815
820
825
825
830
830
815
820
825 815800805810815-45.1%8158208258258208158
1
0
825
815
820 815-2:1
-2:1
-2:1-2:1 -3:1-3:1-4:1-4:1-4:1
-9.2%
100-YR DETENTION POND
W/ IMPERVIOUS LINER
(P) 210' LONG X 10' WIDE @ BOT. X 1' DEEP W/
3:1 SIDE SLOPES RIPRAP-LINED RUNDOWN &
END SECTION. 18" D50 RIPRAP 36" THICK LAYER
OVER PERMEABLE/NONWOVEN SEPARATION
FABRIC & REPAIRED SUBGRADE
DENOTES SURFACE
BOUNDARY (TYP.)
(E) SANITARY SEWER
MATCH EXISTING GRADES @ OUTSIDE
OF RIPRAP-LINED RUNDOWN
DENOTES SURFACE
BOUNDARY (TYP.)
(P) CONCRETE FOREBAY
18.0'
CONTROL
N: 1022497.517'
E: 2849480.456'
POINT NO: 412
ELEV.: 815.062'
CONTROL
N: 1022682.654'
E: 2849488.683'
POINT NO: 413
ELEV.: 815.254'
SDMH 1
36" DIA. NYLOPLAST MANHOLE
STA. 3+72
RIM ELEV. = 815.32'
N: 1022509.62'
E: 2849654.36'
IN INV. ELEV. = 807.29 (18" NE)
OUT INV. ELEV. = 807.09 (18" W)
SDMH 2
36" DIA. NYLOPLAST MANHOLE
STA. 2+06
RIM ELEV. = 814.89'
N: 1022510.83'
E: 2849488.69'
IN INV. ELEV. = 805.43 (18" E)
OUT INV. ELEV. = 805.23 (18" N)
SDMH 3
36" DIA. NYLOPLAST MANHOLE
STA. 0+53
RIM ELEV. = 814.04'
N: 1022664.33'
E: 2849489.27'
IN INV. ELEV. = 803.69 (18" S)
OUT INV. ELEV. = 803.49 (18" W)
POND OUTLET STRC
REFER TO DETAIL 1 ON SHEET 4311
STA. 4+93
RIM ELEV. = 813.75'
N: 1022610.45'
E: 2849721.09'
OUT INV. ELEV. = 808.50 (18" SW)
APPROX. DAYLIGHT LOCATION
PROVIDE FLARED END SECTION
STA. 0+09
N: 1022664.79'
E: 2849445.63'
OUT INV. ELEV. = 803.05 (18" E)
121 L.F. - 18" DIA. SMOOTH-WALLED
INTERIOR HDPE @ -1.0%
166 L.F. - 18" DIA. SMOOTH-WALLED
INTERIOR HDPE @ -1.0%
153 L.F. - 18" DIA. SMOOTH-WALLED
INTERIOR HDPE @ -1.0%
44 L.F. - 18" DIA. SMOOTH-WALLED
INTERIOR HDPE @ -1.0%
0+00
1+002+003+00 4+004+93(P) CONCRETE FOREBAY
-0.8%-3:1-3
:
1
ELEVATION (FEET)STATION (FEET)
790.0
792.0
794.0
796.0
798.0
800.0
802.0
804.0
806.0
808.0
810.0
812.0
814.0
816.0
818.0
820.0
790.0
792.0
794.0
796.0
798.0
800.0
802.0
804.0
806.0
808.0
810.0
812.0
814.0
816.0
818.0
820.0
-1+00 -0+80 -0+60 -0+40 -0+20 0+00 0+20 0+40 0+60 0+80 1+00 1+20 1+40 1+60 1+80 2+00 2+20 2+40 2+60 2+80 3+00 3+20 3+40 3+60 3+80 4+00 4+20 4+40 4+60 4+80 5+00 5+20 5+40 5+60 5+80 6+00
POND OUTLET STRC
REFER TO DETAIL 1 ON SHEET 4311
STA. 4+93
RIM ELEV. = 813.75'
N: 1022610.45'
E: 2849721.09'
OUT INV. ELEV. = 808.50 (18" SW)
121 L.F. - 18" DIA. SMOOTH-WALLED
INTERIOR HDPE @ -1.0%
SDMH 1
36" DIA. NYLOPLAST MANHOLE
STA. 3+72
RIM ELEV. = 815.32'
N: 1022509.62'
E: 2849654.36'
IN INV. ELEV. = 807.29 (18" NE)
OUT INV. ELEV. = 807.09 (18" W)
166 L.F. - 18" DIA. SMOOTH-WALLED
INTERIOR HDPE @ -1.0%
SDMH 2
36" DIA. NYLOPLAST MANHOLE
STA. 2+06
RIM ELEV. = 814.89'
N: 1022510.83'
E: 2849488.69'
IN INV. ELEV. = 805.43 (18" E)
OUT INV. ELEV. = 805.23 (18" N)
153 L.F. - 18" DIA. SMOOTH-WALLED
INTERIOR HDPE @ -1.0%
SDMH 3
36" DIA. NYLOPLAST MANHOLE
STA. 0+53
RIM ELEV. = 814.04'
N: 1022664.33'
E: 2849489.27'
IN INV. ELEV. = 803.69 (18" S)
OUT INV. ELEV. = 803.49 (18" W)
44 L.F. - 18" DIA. SMOOTH-WALLED
INTERIOR HDPE @ -1.0%
APPROX. DAYLIGHT LOCATION
PROVIDE FLARED END SECTION
STA. 0+09
RIM ELEV. = 804.77'
N: 1022664.79'
E: 2849445.63'
OUT INV. ELEV. = 803.05 (18" E)
EXISTING GRADE
PROPOSED GRADE
NOTES:
1.STORM DRAIN MANHOLES SHALL BE NYLOPLAST 36" DIA. DRAIN BASINS WITH 30" DIA. SOLID
COVERS AND 36"X30" DUCTILE IRON REDUCING TOPS.
2.ALL MANHOLES SHALL BE FURNISHED WITH LADDERS.
3.SDMH COVERS SHALL SUPPORT HS-20/HL-93 LOADS.
SERVICE CENTER:
CAD FILE NAME:
BY
DRAWINGREVISIONS
NO.DESCRIPTION DATE
DESIGNED BY:
APPROVED BY:
CHECKED BY:
DRAWN BY:
TYPE:
LOCATION:
DIVISION:CITY/COUNTY :IN SERVICE DATE:
HISTORY DATE
FLOC:
®
SIBLEY PROPANE PLANT
POND OUTLET PLAN & PROFILE 4400
0
D1_4400_Sibley Mounding.dwg
NORTHERN MENDOTA HEIGHTS / DAKOTA FACILITY
UNIT 00
GU-SPG
NORTHERN STATES POWER COMPANY
AL 05/24/2024
IFC 05/24/2024
IFC 05/24/2024
0 ISSUED FOR CONSTRUCTION MR 05/24/2024
>>>
W W
LEGEND:
EXISTING MAJOR CONTOURS
EXISTING MINOR CONTOURS
PROPOSED MAJOR CONTOURS
PROPOSED MINOR CONTOURS
SURFACE BOUNDARY
PROPERTY LINE
PROPOSED FLOW LINE
PROPOSED FIREWATER MAIN
EXISTING FENCE TO BE REMOVED
PROPOSED FENCE
EXISTING FENCE
EXISTING GAS LINE
EXISTING OVERHEAD UTILITY
EXISTING SANITARY SEWER
EXISTING STORM SEWER
PROPOSED CULVERT/STORM SEWER
PROPOSED UNDERDRAIN
GRAVEL (INCLUDES SMALL
DIA. RIPRAP <6")
CONCRETE
LARGE DIA. RIPRAP (>6")
PROPOSED ASPHALT
G
8460
8466
8460
OH
SS
ST
x x x x x
G
OH
SS
ST
x x x x x
8466
PROFESSIONAL ENGINEER
I hereby certify that this plan, specification, or
report was prepared by me or under my direct
supervision and that I am a duly Licensed
Professional Engineer under the Laws of the
state of Minnesota.
Signature:
Typed or Printed Name: Isaac Francis Cohrs
Date: License Number: 5910605/24/2024
Page 61 of 68
SERVICE CENTER:
CAD FILE NAME:
BY
DRAWINGREVISIONS
NO.DESCRIPTION DATE
DESIGNED BY:
APPROVED BY:
CHECKED BY:
DRAWN BY:
TYPE:
LOCATION:
DIVISION:CITY/COUNTY :IN SERVICE DATE:
HISTORY DATE
FLOC:
®
SIBLEY PROPANE PLANT
MANHOLE DETAILS 4401
0
D1_4400_Sibley Mounding.dwg
NORTHERN MENDOTA HEIGHTS / DAKOTA FACILITY
UNIT 00
GU-SPG
NORTHERN STATES POWER COMPANY
AL 05/24/2024
IFC 05/24/2024
IFC 05/24/2024
0 ISSUED FOR CONSTRUCTION MR 05/24/2024
PROFESSIONAL ENGINEER
I hereby certify that this plan, specification, or
report was prepared by me or under my direct
supervision and that I am a duly Licensed
Professional Engineer under the Laws of the
state of Minnesota.
Signature:
Typed or Printed Name: Isaac Francis Cohrs
Date: License Number: 5910605/24/2024
Page 62 of 68
NOTES:
1.INSTALLATION:
FENCE ADDITION SHALL BE PLUMB AND TRUE TO LINE, CHAIN LINK FABRIC SHALL BE TAUT AND PROPERLY SECURED, CORNER BRACES AND DIAGONAL BRACES SHALL BE
PROPERLY PLACED TO PREVENT SAGGING. THE COMPLETE INSTALLATION SHALL BE INSTALLED BY SKILLED AND EXPERIENCED FENCE ERECTORS, IN A WORKMANLIKE
MANNER, IN ACCORDANCE WITH GOOD CONSTRUCTION PRACTICE AND IN ACCORDANCE WITH ALL LOCAL APPLICABLE CODES.
2.MATERIAL:
LINE POST SHALL BE 3.5" O.D. OR LARGER. PIPE TERMINAL POSTS (CORNER/END/PULL POSTS) SHALL BE 4.5" O.D. OR LARGER. HORIZONTAL FRAMEWORK MEMBERS INCLUDING
TOP RAIL, BRACE RAIL & TRUSS ROD SHALL COMPLY WITH ASTM F1043. SPECIFICATION FOR HOT-DIP GALVANIZED FENCE CHAIN LINK FABRIC - THE CHAIN LINK FABRIC SHALL
BE IN ACCORDANCE WITH ASTM A-392 SPECIFICATIONS AND SHALL BE HOT DIPPED GALVANIZED AFTER WEAVING, HAVING A COATING WEIGHT OF 2 OUNCES OF ZINC PER
SQUARE FOOT, MINIMUM, OF UNCOATED WIRE SURFACE (CLASS II). FABRIC SHALL BE NO. 9 GAUGE WIRE WOVEN IN A 1-INCH CHAIN LINK DIAMOND MESH. THE FABRIC SHALL BE
FASTENED TO THE LINE POST BY MEANS OF NO. 6 GAUGE ALUMINUM WIRE CLIPS SPACED 12 INCHES ON CENTER. IT SHALL BE ATTACHED TO TOP RAIL WITH NO. 9 GAUGE
ALUMINUM TIE WIRES SPACED 24 INCHES ON CENTER. FABRIC SHALL BE ATTACHED TO TERMINAL POST BY MEANS OF A 1/4" X 3/4" TENSION BAR WITH HEAVY GAUGE PRESSED
STEEL BAND OR CLIPS SPACED APPROXIMATELY 14 INCHES ON CENTER.
3.FOR ADDITIONAL FENCE INFORMATION, SEE SPECIFICATIONS UNDER "PHYSICAL SECURITY FENCE AND GATE GUIDELINES" BY XCEL ENERGY, VERSION 2.
TENSION WIRE
9-GAUGE STEEL TIE WIRE
(15" O.C. MAX. AND WITHIN
4" FROM TOP AND BOTTOM
OF FABRIC)
9-GAUGE STEEL TIE WIRES
(2'-0" O.C. MAX.)
FABRIC
FABRIC
TENSION BAND (15" O.C. MAX.
AND WITHIN 4" FROM TOP
AND BOTTOM OF FABRIC)
TENSION BAR TO ENGAGE
EACH FABRIC LINK
TENSION BAR
CARRIAGE BOLT
TENSION BAND
TRUSS ROD (3/8" MIN. DIA.)
18"
15"
10'-0" MAXIMUM 10'-0" O.C. MAXIMUM
LINE POSTS TO BE EQUALLY SPACED
GRADE
6"5'-9"2"6"5'-9"CONCRETE PIER
CORNER, END, OR
PULL POST
TOP RAIL OR TENSION WIRE
BRACE RAIL
TIE WIRES OR
HOG RINGS (TYP.)
HOG RINGS (TYP.)4" MIN FOR
SJKF PASSAGE FENCE FABRIC HEIGHTLINE POST
LINE POST
CHAIN-LINK FABRIC
(11 GAUGE, 1" MESH)
TRUSS ROD
(3/8" MIN. DIA.)
BOTTOM OF
FABRIC
TENSION WIRE
TIE WIRES OR CLIPS
(TYP.)
CONSTRUCTION NOTES:
1.PROVIDE BRACE PANEL WHENEVER STRAIGHT RUNS EXCEED 500 FEET.
2.PROVIDE BRACE PANEL WHENEVER FENCE ALIGNMENT CHANGE IN DIRECTION EXCEEDS 15 DEGREES.
10'-0" MAX.10'-0" MAX.
TENSION WIRE
LINE POST LINE POST
BRACE RAILSBRACE RAILS
PULL POST
TRUSS RODTRUSS ROD 10'-0" MINIMUMSERVICE CENTER:
BY
DRAWINGREVISIONS
NO.DESCRIPTION DATE
DESIGNED BY:
APPROVED BY:
CHECKED BY:
DRAWN BY:
TYPE:
LOCATION:
DIVISION:CITY/COUNTY :IN SERVICE DATE:
HISTORY DATE
FLOC:
®
SIBLEY PROPANE PLANT
FENCING DETAILS 4600
0
D1_4600_Sibley Mounding.dwg
NORTHERN MENDOTA HEIGHTS / DAKOTA FACILITY
UNIT 00
GU-SPG
NORTHERN STATES POWER COMPANY
MR 05/24/2024
IFC 05/24/2024
IFC 05/24/2024
0 ISSUED FOR CONSTRUCTION MR 05/24/2024
PROFESSIONAL ENGINEER
I hereby certify that this plan, specification, or
report was prepared by me or under my direct
supervision and that I am a duly Licensed
Professional Engineer under the Laws of the
state of Minnesota.
Signature:
Typed or Printed Name: Isaac Francis Cohrs
Date: License Number: 5910605/24/2024
Page 63 of 68
NOTES:
1.DETAILS SHOWN ARE TO CLARIFY REQUIREMENTS AND ARE NOT INTENDED TO LIMIT OTHER TYPES OF FENCE SECTIONS AND METHODS OF
INSTALLATION THAT COMPLY WITH THE SPECIFICATIONS.
2.WIRE TIES, RAILS, POSTS, AND BRACES SHALL BE CONSTRUCTED ON THE SECURE SIDE OF THE FENCE ALIGNMENT. CHAIN-LINK FABRIC SHALL
BE PLACED ON THE SIDE OPPOSITE THE SECURE AREA.
3.UNLESS SPECIFICALLY SHOWN OR SPECIFIED, ALL FENCE SHALL HAVE AN APRON EXTENDED OUTWARD FROM THE AREA BEING PROTECTED.112"(TYP.)TRUSS ROD
(3 8" MIN. DIA.)
CONCRETE PIER
STEEL POST SCHEDULE
USE AND SECTION
MINIMUM OUTSIDE DIMENSIONS (NOMINAL)
FABRIC WIDTH 120"
CORNER, END, & PULL
POSTS
TUBULAR - ROUND
4.5" O.D.
LINE POSTS
TUBULAR - ROUND 3.5" O.D.
TOP, BOTTOM, & BRACE
RAILS
TUBULAR - ROUND
1.66" O.D.
SERVICE CENTER:
BY
DRAWINGREVISIONS
NO.DESCRIPTION DATE
DESIGNED BY:
APPROVED BY:
CHECKED BY:
DRAWN BY:
TYPE:
LOCATION:
DIVISION:CITY/COUNTY :IN SERVICE DATE:
HISTORY DATE
FLOC:
®
SIBLEY PROPANE PLANT
FENCING DETAILS 4601
0
D1_4600_Sibley Mounding.dwg
NORTHERN MENDOTA HEIGHTS / DAKOTA FACILITY
UNIT 00
GU-SPG
NORTHERN STATES POWER COMPANY
MR 05/24/2024
IFC 05/24/2024
IFC 05/24/2024
0 ISSUED FOR CONSTRUCTION MR 05/24/2024
PROFESSIONAL ENGINEER
I hereby certify that this plan, specification, or
report was prepared by me or under my direct
supervision and that I am a duly Licensed
Professional Engineer under the Laws of the
state of Minnesota.
Signature:
Typed or Printed Name: Isaac Francis Cohrs
Date: License Number: 5910605/24/2024
Page 64 of 68
1.0 GENERAL CONSTRUCTION ACTIVITY INFORMATION:
THIS STORMWATER POLLUTION PREVENTION PLAN (SWPPP) HAS BEEN PREPARED IN COMPLIANCE WITH THE MINNESOTA GENERAL
STORMWATER PERMIT FOR CONSTRUCTION ACTIVITY NO. MNR100001 (GENERAL PERMIT), AS REQUIRED BY THE MINNESOTA POLLUTION
CONTROL AGENCY (MPCA) UNDER THE NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM/STATE DISPOSAL SYSTEM (NPDES/SDS)
PROGRAM.
THE PROJECT IS LOCATED AT 800 SIBLEY MEMORIAL HIGHWAY IN THE CITY OF MENDOTA HEIGHTS, DAKOTA COUNTY, MINNESOTA. PROPOSED
CONSTRUCTION ACTIVITIES WILL TAKE PLACE WITHIN SECTION 23 TOWNSHIP 28 NORTH RANGE 23 WEST. THE APPROXIMATE CENTROID OF THE
PROJECT HAS A LATITUDE OF 44.906177 AND A LONGITUDE OF -93.130502.
THIS PROJECT INVOLVES THE IMPROVEMENT OF EXISTING STORMWATER ROUTING, STORAGE AND DISCHARGE SYSTEMS ON SITE.
CONSTRUCTION WILL CONSIST OF SITE GRADING, DRAINAGE SYSTEM IMPROVEMENTS, SURFACING EXPANSION AND REPAIR, AND
CONSTRUCTION OF OUTLET AND PRETREATMENT STRUCTURES. THE PROJECT IS NOT A PART OF A LARGER COMMON PLAN OF
DEVELOPMENT. THE PROJECT AS PROPOSED HAS A TOTAL DISTURBANCE AREA OF 5.38 ACRES. EROSION PREVENTION AND SEDIMENT
CONTROL MEASURES ARE REQUIRED TO MINIMIZE SEDIMENT FROM BEING TRANSPORTED INTO THE MISSISSIPPI RIVER, REFER TO PROJECT
DRAWINGS FOR FURTHER DETAILS. (CSW PERMIT PART III.A.1)
1.1 PROJECT SIZE AND CUMULATIVE IMPERVIOUS SURFACE:
·THE ANTICIPATED AREA OF DISTURBANCE IS APPROXIMATELY 5.38 ACRES.
·THE TOTAL AREA OF PRE-CONSTRUCTION IMPERVIOUS AREA IS APPROXIMATELY 3.93 ACRES.
·THE TOTAL AREA OF POST-CONSTRUCTION IMPERVIOUS AREA IS APPROXIMATELY 4.53 ACRES.
·THE TOTAL NEW IMPERVIOUS AREA IS APPROXIMATELY 0.60 ACRES.
1.2 DATES OF CONSTRUCTION:
·ANTICIPATED START DATE: JUNE 2022 ANTICIPATED END DATE: NOVEMBER 2023
1.3 CONTACT INFORMATION:
OWNER: XCEL ENERGY
MAILING ADDRESS: 10326 S. ROBERT TRAIL, INVER GROVE HEIGHTS, MN 55076
CONTACT PERSON: RICHARD HYDE TITLE: SENIOR OPERATIONS MANAGER
PHONE NUMBER: 651-265-7055 EMAIL ADDRESS: RICHARD.R.HYDE@XCELENERGY.COM
OPERATOR / GENERAL CONTRACTOR (WILL OVERSEE IMPLEMENTATION OF THE SWPPP): ___________________________________________
MAILING ADDRESS: _________________________________________
CONTACT PERSON: _________________________________________TITLE: _______________________________________________________
PHONE NUMBER: ___________________________________________EMAIL ADDRESS: ______________________________________________
PARTY RESPONSIBLE FOR LONG-TERM OPERATION AND MAINTENANCE OF THE PERMANENT STORMWATER MANAGEMENT SYSTEM:
XCEL ENERGY
MAILING ADDRESS: 10326 S. ROBERT TRAIL, INVER GROVE HEIGHTS, MN 55076
CONTACT PERSON: RICHARD HYDE
TITLE: SENIOR OPERATIONS MANAGER
PHONE NUMBER: 651-265-7055
EMAIL ADDRESS: RICHARD.R.HYDE@XCELENERGY.COM
2.0 RECEIVING WATERS:
WATERS WITHIN ONE MILE (NEAREST STRAIGHT LINE DISTANCE) THAT ARE LIKELY TO RECEIVE STORMWATER RUNOFF FROM THE PROJECT
SITE (CSW PERMIT ITEM 5.10) INCLUDE:
SPECIAL IMPAIRED PUBLIC WATER WITH WORK
NAME OF WATER BODY TYPE (1)WATER BODY ID (2)WATER? (3)WATER? (3)IN WATER RESTRICTIONS?
UNNAMED CREEK CREEK 07010206-542 NO NO NO
MISSISSIPPI RIVER RIVER 07010206-505 NO YES NO
(1) TYPE EXAMPLES: DITCH, POND, WETLAND, CALCAREOUS FEN, LAKE, STREAM, RIVER
(2) WATER BODY IDENTIFICATION (ID) MIGHT NOT BE AVAILABLE FOR ALL WATER BODIES. USE THE SPECIAL AND IMPAIRED
WATERS SEARCH TOOL AT: HTTPS://WWW.PCA.STATE.MN.US/WATER/STORMWATER-SPECIAL-AND-IMPAIRED-WATERS-SEARCH
(3) REFER TO CSW PERMIT SECTION 23. IMPAIRED WATER FOR THE FOLLOWING POLLUTANT(S) OR STRESSOR(S): PHOSPHORUS
(NUTRIENT EUTROPHICATION BIOLOGICAL INDICATORS), TURBIDITY, TOTAL SUSPENDED SOLIDS (TSS), DISSOLVED OXYGEN, OR AQUATIC
BIOTA (FISH BIOASSESSMENT, AQUATIC PLANT BIOASSESSMENT, AND AQUATIC MACROINVERTEBRATE BIOASSESSMENT)
2.1 SPECIAL AND IMPAIRED WATERS:
THE MPCA'S SPECIAL AND IMPAIRED WATERS SEARCH TOOL WAS USED TO LOCATE SPECIAL AND IMPAIRED WATERS WITHIN ONE MILE (AERIAL
RADIUS MEASUREMENT) OF THE PROJECT SITE. THIS SEGMENT OF THE MISSISSIPPI RIVER HAS EPA-APPROVED IMPAIRMENTS FOR FECAL
COLIFORM, MERCURY IN FISH TISSUE, MERCURY IN WATER COLUMN, NUTRIENTS, PCB IN FISH TISSUE, TOTAL SUSPENDED SOLIDS, AND
PERFLUOROOCTANE SULFUNATE (PFOs) IN FISH TISSUE. THESE IMPAIRMENTS ARE CONSIDERED CONSTRUCTION RELATED AND DO REQUIRE
ADDITIONAL BEST MANAGEMENT PRACTICES (BMPS) OR PLAN REVIEW FOR COMPLIANCE WITH THE GENERAL PERMIT. (CSW PERMIT ITEM 2.7
AND SECTION 23)
ADDITIONAL BMPS OR OTHER SPECIFIC CONSTRUCTION RELATED IMPLEMENTATION ACTIVITIES IDENTIFIED IN AN APPROVED TOTAL MAXIMUM
DAILY LOAD (TMDL) INCLUDE NEED TO UPDATE BASED ON TMDL - MIGHT INCLUDE THINGS LIKE IMMEDIATE STABILIZATION OF EXPOSED SOIL
AREAS. (CSW PERMIT ITEM 5.19)
2.2 PUBLIC WATERS WITH WORK IN WATER RESTRICTIONS:
THIS PROJECT DOES NOT INCLUDE WORK IN PUBLIC WATERS. (CSW PERMIT ITEM 5.11)
2.3 WETLAND IMPACTS:
THIS PROJECT DOES NOT INCLUDE WETLAND IMPACTS. (CSW PERMIT ITEMS 2.4 AND 2.10, AND SECTION 22)
2.4 ENVIRONMENTAL REVIEW AND OTHER REQUIRED REVIEWS:
STORMWATER MITIGATION MEASURES ARE NOT REQUIRED AS A RESULT OF AN ENVIRONMENTAL REVIEW (E.G., EAW OR EIS), ENDANGERED OR
THREATENED SPECIES REVIEW, ARCHEOLOGICAL SITE REVIEW, OR OTHER LOCAL, STATE, OR FEDERAL REVIEW CONDUCTED FOR THE
PROJECT. (CSW PERMIT ITEMS 2.8, 2.9, AND 5.16)
2.5 KARST AREAS OR DRINKING WATER SUPPLY MANAGEMENT AREAS:
THE PRESENCE OF KARST IN THE VICINITY OF THE SITE RESULTS IN THE PROHIBITION OF INFILTRATION FEATURES FOR STORMWATER
MANAGEMENT IN ORDER TO PROTECT GROUNDWATER STANDARDS. (CSW PERMIT ITEMS 16.19, 16.20, AND 18.10)
3.0 PROJECT PLANS AND SPECIFICATIONS:
REQUIRED FEATURE SHEET NUMBER
·PROJECT LOCATION AND CONSTRUCTION LIMITS 4152
·EXISTING AND FINAL GRADES, INCLUDING DRAINAGE AREA BOUNDARIES, DIRECTIONS
OF FLOW AND ALL DISCHARGE POINTS WHERE STORMWATER IS LEAVING THE SITE OR
ENTERING A SURFACE WATER
·SOIL TYPES AT THE SITE 4151
·LOCATIONS OF IMPERVIOUS SURFACES 4152
·LOCATIONS OF AREAS NOT BE BE DISTURBED (E.G., BUFFER ZONES, WETLANDS, ETC.)4152
·LOCATIONS OF AREAS OF STEEP SLOPES 4152
·LOCATIONS OF AREAS WHERE CONSTRUCTION WILL BE PHASED TO MINIMIZE DURATION
OF EXPOSED SOILS N/A
·PORTIONS OF THE SITE THAT DRAIN TO A PUBLIC WATER WITH DNR WORK IN WATER
RESTRICTIONS FOR FISH SPAWNING TIMEFRAMES 4152
·LOCATIONS OF ALL TEMPORARY AND PERMANENT EROSION AND SEDIMENT CONTROL
BMPS AS REQUIRED IN PERMIT SECTIONS 8 THROUGH 10 AND 14 THROUGH 19 4152
·BUFFER ZONES AS REQUIRED IN PERMIT ITEMS 9.17 AND 23.11 N/A
·LOCATIONS OF POTENTIAL POLLUTION-GENERATING ACTIVITIES IDENTIFIED IN PERMIT
SECTION 12 4152
·STANDARD DETAILS FOR EROSION AND SEDIMENT CONTROL BMPS TO BE INSTALLED
AT THE SITE 4153
4.0 BEST MANAGEMENT PRACTICES (BMPS):
4.1 EROSION PREVENTION PRACTICES:
1.BEFORE LAND DISTURBING ACTIVITIES BEGIN, THE LIMITS OF THE AREAS TO BE DISTURBED DURING CONSTRUCTION
WILL BE DELINEATED WITH FLAGS, STAKES, SIGNS, SILT FENCE, ETC.
2.TEMPORARY STABILIZATION OF SOILS AND SOIL STOCKPILES: (CSW PERMIT ITEMS 8.4, 8.5, AND 23.9)
a.AREAS OF EXPOSED SOIL WILL BE STABILIZED WITH EROSION CONTROL BLANKET OR EQUIVALENT MEASURES.
b.IF PRESENT, SOIL STOCKPILES WILL BE STABILIZED WITH FAST GROWING COVER CORP, MULCH SUCH AS STRAW
MULCH OR EQUIVALENT MEASURES.
c.TEMPORARY STOCKPILES WITHOUT SIGNIFICANT SILT, CLAY, OR ORGANIC COMPONENTS (E.G., CLEAN
AGGREGATE STOCKPILES, DEMOLITION CONCRETE STOCKPILES, SAND STOCKPILES) AND THE CONSTRUCTED
BASE COMPONENTS OF ROADS, PARKING LOTS, AND SIMILAR SURFACES ARE EXEMPT FROM THESE
STABILIZATION REQUIREMENTS.
2.STABILIZATION OF DITCH AND SWALE WETTED PERIMETERS: (CSW PERMIT ITEMS 8.6 THROUGH 8.8)
a.IF SOILS WITHIN EXISTING STORMWATER DITCHES OR SWALES ARE DISTURBED, THEY WILL BE STABILIZED WITH
CHANNEL EROSION CONTROL BLANKET, RIPRAP, TURF REINFORCEMENT MAT OR EQUIVALENT MEASURES.
b.MULCH, HYDROMULCH, TACKIFIER, POLYACRYLAMIDE, OR SIMILAR EROSION PREVENTION PRACTICES WILL NOT
BE USED TO STABILIZE ANY PART OF AN EXISTING STORMWATER DITCH OR SWALE WITH A CONTINUOUS SLOPE
OF GREATER THAN 2 PERCENT.
c.THE LAST 200 LINEAL FEET OF LENGTH OF THE NORMAL WETTED PERIMETER OF ANY TEMPORARY OR
PERMANENT DITCH OR SWALE THAT DRAINS WATER FROM ANY PORTION OF THE CONSTRUCTION SITE, OR
DIVERTS WATER AROUND THE SITE, WITHIN 200 LINEAL FEET FROM THE PROPERTY EDGE, OR FROM THE POINT
OF DISCHARGE INTO ANY SURFACE WATER WILL BE STABILIZED WITHIN 24 HOURS AFTER CONNECTING TO A
SURFACE WATER OR PROPERTY EDGE.
d.STABILIZATION OF THE REMAINING PORTIONS OF ANY TEMPORARY OR PERMANENT DITCHES OR SWALES WILL
BE COMPLETED WITHIN 14 CALENDAR DAYS AFTER CONNECTING TO A SURFACE WATER OR PROPERTY EDGE
AND CONSTRUCTION IN THAT PORTION OF THE DITCH HAS TEMPORARILY OR PERMANENTLY CEASED.
3.ENERGY DISSIPATION AT PIPE OUTLETS: ENERGY DISSIPATION AT PIPE OUTLETS WILL BE PROVIDED WITH ONE OR
MORE OF THE FOLLOW METHODS: RIP RAP, SPLASH PADS, GABIONS, OR EQUIVALENT MEASURES. (CSW PERMIT ITEM
8.9)
4.EROSION PREVENTION IMPLEMENTATION TIMELINES: (CSW PERMIT ITEMS 5.4, 8.4 THROUGH 8.6, AND 23.9)
a.SINCE THE SITE DRAINS TO A DISCHARGE POINT THAT IS WITHIN ONE MILE (AERIAL RADIUS MEASUREMENT) OF A
SPECIAL OR IMPAIRED WATER (SEE SECTION 2.0), STABILIZATION OF EXPOSED SOIL AREAS (INCLUDING
STOCKPILES) WILL BE INITIATED IMMEDIATELY TO LIMIT SOIL EROSION WHENEVER ANY CONSTRUCTION
ACTIVITY HAS PERMANENTLY OR TEMPORARILY CEASED ON ANY PORTION OF THE SITE AND WILL NOT RESUME
FOR A PERIOD EXCEEDING 7 CALENDAR DAYS.
b.THE FOLLOWING ACTIVITIES CAN BE TAKEN TO INITIATE STABILIZATION: PREPPING THE SOIL FOR VEGETATIVE
OR NON-VEGETATIVE STABILIZATION, APPLYING MULCH OR OTHER NON-VEGETATIVE PRODUCT TO THE
EXPOSED SOIL AREA, OR SEEDING OR PLANTING THE EXPOSED AREA.
5.ADDITIONAL EROSION PREVENTION MEASURES: THE FOLLOWING ADDITIONAL EROSION PREVENTION METHODS WILL
BE IMPLEMENTED AT THE SITE DURING CONSTRUCTION: (CSW PERMIT ITEMS 8.2, 8.3, AND 8.10)
a.CONSTRUCTION PHASING WILL BE UTILIZED TO MINIMIZE THE AREA OF SOIL EXPOSED AT ANY ONE TIME.
b.SOIL DISTURBANCE WILL BE MINIMIZED WHEREVER POSSIBLE TO AID IN EROSION PREVENTION.
c.EXISTING VEGETATION WILL BE PRESERVED WHEREVER POSSIBLE TO LIMIT EXPOSED SOIL AND THUS WILL
SERVE AS NATURAL VEGETATIVE BUFFERS.
d.EXPOSED SOIL ON STEEP SLOPES (≤3H:1V) WILL BE STABILIZED USING EROSION CONTROL BLANKETS AND
SEEDING.
e.HORIZONTAL SLOPE GRADING WILL BE UTILIZED TO MINIMIZE EROSION POTENTIAL.
f.TERRACING WILL BE USED TO MINIMIZED EROSION POTENTIAL.
4.2 SEDIMENT CONTROL PRACTICES:
1.DOWNGRADIENT PERIMETER CONTROLS: (CSW PERMIT ITEMS 9.2 THROUGH 9.6)
a.SEDIMENT CONTROL PRACTICES WILL BE ESTABLISHED ON ALL DOWNGRADIENT PERIMETERS AND LOCATED
UPGRADIENT OF ANY BUFFER ZONES. PERIMETER SEDIMENT CONTROLS WILL INCLUDE: SILT FENCE, SEDIMENT
CONTROL LOGS / BIOROLLS (FILLED WITH COMPOST, WOOD CHIPS, ROCK, ETC.), VEGETATIVE BUFFERS (RETAIN
EXISTING VEGETATION WHERE POSSIBLE) OR EQUIVALENT MEASURES.
b.PERIMETER SEDIMENT CONTROL PRACTICES MUST BE INSTALLED BEFORE ANY UPGRADIENT LAND‐DISTURBING
ACTIVITIES BEGIN AND REMAIN IN PLACE UNTIL PERMANENT COVER HAS BEEN ESTABLISHED.
c.IF SEDIMENT CONTROL PRACTICES HAVE BEEN ADJUSTED OR REMOVED TO ACCOMMODATE SHORT‐TERM
ACTIVITIES (SUCH AS CLEARING, GRUBBING, OR PASSAGE OF VEHICLES), THE CONTROLS MUST BE
RE-INSTALLED IMMEDIATELY AFTER THE SHORT‐TERM ACTIVITY HAS BEEN COMPLETED. SEDIMENT CONTROL
PRACTICES MUST BE RE-INSTALLED BEFORE THE NEXT PRECIPITATION EVENT, EVEN IF THE SHORT‐TERM
ACTIVITY IS NOT COMPLETE.
d.IF THE DOWNGRADIENT SEDIMENT CONTROLS ARE OVERLOADED (BASED ON FREQUENT FAILURE OR EXCESSIVE
MAINTENANCE REQUIREMENT), INSTALL ADDITIONAL UPGRADIENT SEDIMENT CONTROL PRACTICES OR
REDUNDANT BMPS TO ELIMINATE THE OVERLOADING AND AMEND THE SWPPP TO IDENTIFY THESE ADDITIONAL
PRACTICES.
2.SOIL STOCKPILE PERIMETER CONTROLS: TEMPORARY SOIL STOCKPILES WILL BE SURROUNDED BY: SEDIMENT
CONTROL LOGS / BIOROLLS (FILLED WITH COMPOST, WOOD CHIPS, ROCK, ETC.) OR EQUIVALENT MEASURES, AND
SHALL NOT BE PLACED IN ANY NATURAL BUFFERS OR SURFACE WATERS.(CSW PERMIT ITEMS 9.9 AND 9.10)
3.STORM DRAIN INLET PROTECTION: (CSW PERMIT ITEMS 9.7 AND 9.8)
a.INLET PROTECTION BMPS WILL BE INSTALLED AROUND ALL STORM DRAIN INLETS DOWNGRADIENT OF
CONSTRUCTION ACTIVITIES.
b.STORM DRAIN INLETS WILL BE PROTECTED UNTIL ALL SOURCES WITH POTENTIAL FOR DISCHARGING TO THE
INLET HAVE BEEN STABILIZED.
c.INLET PROTECTION BMPS WILL BE: SEDIMENT CONTROL LOG, FILTER SACK, ROCK WITH FILTER FABRIC, FILTER
FENCE BOX OR EQUIVALENT MEASURES.
4.VEHICLE TRACKING BMPS: (CSW PERMIT ITEMS 9.11 AND 9.12)
a.VEHICLE TRACKING BMPS WILL BE INSTALLED TO MINIMIZE THE TRACKING OUT OF SEDIMENT FROM THE
CONSTRUCTION AREA AND WILL INCLUDE: ROCK PADS OR AN EQUIVALENT SYSTEM.
b.IF SUCH VEHICLE TRACKING BMPS ARE NOT ADEQUATE TO PREVENT SEDIMENT FROM BEING TRACKED ONTO
THE PAVED ROAD, STREET SWEEPING WILL ALSO BE EMPLOYED. SEDIMENT WILL BE REMOVED BY SWEEPING
WITHIN 24 HOURS.
5.PROTECTION OF INFILTRATION AREAS: IF NECESSARY, ADDITIONAL SEDIMENT CONTROLS (E.G., DIVERSION BERMS)
WILL BE INSTALLED TO KEEP RUNOFF AWAY FROM PLANNED INFILTRATION AREAS WHEN EXCAVATED PRIOR TO
ESTABLISHING PERMANENT COVER WITHIN THE CONTRIBUTING DRAINAGE AREA. (CSW PERMIT ITEMS 16.4 AND 16.5)
6.MINIMIZATION OF SOIL COMPACTION AND PRESERVATION OF TOPSOIL: SOIL COMPACTION WILL BE MINIMIZED AND
TOPSOIL WILL BE PRESERVED WHERE POSSIBLE. (CSW PERMIT ITEMS 5.24, 9.14, AND 9.15)
7.PRIORITIZATION OF ONSITE INFILTRATION AND SEDIMENT REMOVAL: (CSW PERMIT ITEM 9.16)
a.PRIOR TO OFFSITE DISCHARGE, INFILTRATION AND SEDIMENT REMOVAL WILL BE IMPLEMENTED ONSITE WHERE
POSSIBLE.
b.DISCHARGES FROM BMPS WILL BE DIRECTED TO VEGETATED AREAS OF THE SITE (INCLUDING ANY NATURAL
BUFFERS) IN ORDER TO INCREASE SEDIMENT REMOVAL AND MAXIMIZE STORMWATER INFILTRATION. IF EROSION
IS NOTED TO OCCUR AS THE RESULT OF SUCH A DISCHARGE, VELOCITY DISSIPATION BMPS WILL BE
CONSIDERED AND INSTALLED AS NECESSARY TO PREVENT EROSION.
8.BUFFER ZONE OR REDUNDANT SEDIMENT CONTROLS TO PROTECT SURFACE WATERS: (CSW PERMIT ITEM 9.17)
a.A 50-FOOT NATURAL BUFFER WILL BE PRESERVED IN CONSTRUCTION AREAS DISCHARGING TO A
NON-SPECIAL/NON-IMPAIRED SURFACE WATER OR WETLAND. IF A NON-SPECIAL/NON-IMPAIRED SURFACE WATER
OR WETLAND IS LOCATED WITHIN 50 FEET OF THE PROJECT'S EARTH DISTURBANCES AND STORMWATER FLOWS
TO THE SURFACE WATER, OR WHEN A BUFFER IS INFEASIBLE, REDUNDANT SEDIMENT CONTROLS WILL BE
PROVIDED.
b.A 100-FOOT NATURAL BUFFER WILL BE PRESERVED IN CONSTRUCTION AREAS DISCHARGING TO A SPECIAL OR
IMPAIRED SURFACE WATER. IF A SPECIAL OR IMPAIRED SURFACE WATER IS LOCATED WITHIN 100 FEET OF THE
PROJECT'S EARTH DISTURBANCES AND STORMWATER FLOWS TO THE SURFACE WATER, OR WHEN A BUFFER IS
INFEASIBLE, REDUNDANT SEDIMENT CONTROLS WILL BE PROVIDED.
c.REDUNDANT PERIMETER CONTROLS WILL BE INSTALLED AT LEAST 5 FEET APART UNLESS LIMITED BY LACK OF
AVAILABLE SPACE.
9.SEDIMENTATION TREATMENT CHEMICALS: NOT APPLICABLE; USE OF SEDIMENTATION TREATMENT CHEMICALS (E.G.,
POLYMERS, FLOCCULANTS, ETC.) IS NOT ANTICIPATED AS PART OF THE PROJECT. (CSW PERMIT ITEMS 5.22 AND 9.18)
10.TEMPORARY SEDIMENT BASIN(S): THE PROJECT WILL NOT INCLUDE 10 OR MORE ACRES OF DISTURBED SOIL DRAINING
TO A COMMON LOCATION OR 5 OR MORE ACRES DRAINING TO A COMMONLOCATION WITHIN 1 MILE OR A SPECIAL OR
IMPAIRED WATER THEREFORE TEMPORARY SEDIMENT BASINS ARE NOT REQUIRED. (CSW PERMIT ITEMS 5.6, 9.13, AND
23.10 AND SECTION 14)
4.3 DEWATERING AND BASIN DRAINING:
NO DEWATERING OR BASIN DRAINING ARE ANTICIPATED AS PART OF THIS PROJECT. (CSW PERMIT SECTION 10 AND ITEM
10.5)
4.4 BMP DESIGN FACTORS:
THE FOLLOWING BMP DESIGN FACTORS HAVE BEEN CONSIDERED IN DESIGNING THE TEMPORARY EROSION PREVENTION
AND SEDIMENT CONTROL BMPS:
1.EXPECTED AMOUNT, FREQUENCY, INTENSITY, AND DURATION OF PRECIPITATION:
2.NATURE OF STORMWATER RUNOFF AND RUN‐ON AT THE SITE, INCLUDING FACTORS SUCH AS EXPECTED FLOW FROM
IMPERVIOUS SURFACES, SLOPES, AND SITE DRAINAGE FEATURES:
3.STORMWATER VOLUME, VELOCITY, AND PEAK FLOW RATES TO MINIMIZE DISCHARGE OF POLLUTANTS IN
STORMWATER AND TO MINIMIZE CHANNEL AND STREAMBANK EROSION AND SCOUR IN THE IMMEDIATE VICINITY OF
DISCHARGE POINTS:
4.RANGE OF SOIL PARTICLE SIZES EXPECTED TO BE PRESENT:
4.5 BMP QUANTITIES:
ROCK CONSTRUCTION ENTRANCE: 1 EA.
SINGLE ROW SILT FENCE: 750 LF
DOUBLE ROW SILT FENCE: 1,850
EROSION CONTROL BLANKET: 1,320 SY
SEDIMENT CONTROL LOG (SLOPE BREAKS): 200 LF
(SEE PAGE 2 OF 2)CADD USER: ERIC P. FITZGERALD FILE: M:\DESIGN\23191480.00\SIBLEY\23191480_G-01_SWPPP.DWG PLOT SCALE: 1:2 PLOT DATE: 3/13/2023 5:34 PMSERVICE CENTER:
BY
DRAWINGREVISIONS
NO.DESCRIPTION DATE
DESIGNED BY:
APPROVED BY:
CHECKED BY:
DRAWN BY:
TYPE:
PROJECT:
DIVISION:CITY/COUNTY :IN SERVICE DATE:
HISTORY DATE
®
Suite 200
4300 MARKETPOINTE DRIVE
Fax: (952) 832-2601
www.barr.com
Ph: 1-800-632-2277
MINNEAPOLIS, MN 55435
05/18/2022
05/18/2022EPF
JPP
BARR
JPP NORTHERN STATES POWER COMPANY
NORTH
SIBLEY PHASE II FIRE SUPPRESSION
STORMWATER POLLUTION PREVENTION PLAN (SWPPP)
MENDOTA HEIGHTS / DAKOTA
4150
4501038238
C
ISSUED FOR CONSTRUCTION
05/18/2022
04/21/2022EPFISSUED FOR REVIEWA
05/18/2023EPFISSUED FOR CONSTRUCTIONB
03/13/2023EPFISSUED FOR CONSTRUCTIONC05/18/2022
C
C
Page 65 of 68
5.0 PERMANENT STORMWATER MANAGEMENT SYSTEM:
A PERMANENT STORMWATER MANAGEMENT SYSTEM IS REQUIRED IF THE PROJECT RESULTS IN ONE ACRE OR MORE
OF NEW IMPERVIOUS SURFACES OR RESULTS IN A NET INCREASE OF ONE OR MORE ACRES OF CUMMULATIVE NEW
IMPERVIOUS SURFACES IN TOTAL OR IF THE PROJECT IS PART OF A LARGER PLAN OF DEVELOPMENT. (CSW PERMIT
ITEM 15.3)
5.1 A PERMANENT STORMWATER TREATMENT SYSTEM IS NOT REQUIRED. (CSW PERMIT ITEMS 5.15, 15.4-15.9, AND
23.14)
5.2 THIS IS NOT A LINEAR PROJECT WITH LACK OF RIGHT OR WAY. (CSW PERMIT ITEM 15.9)
5.3 THIS PROJECT DOES NOT DISCHARGE TO A TROUT STREAM (OR A TRIBUTARY TO A TROUT STREAM). (CSW PERMIT
ITEM 23.12)
6.0 INSPECTION AND MAINTENANCE ACTIVITIES:
6.1 PERSONS WITH REQUIRED TRAINING: TRAINED INDIVIDUALS INCLUDE THOSE PARTIES RESPONSIBLE FOR
INSTALLING, SUPERVISING, REPAIRING, INSPECTING, AND MAINTAINING EROSION PREVENTION AND SEDIMENT
CONTROL BMPS AT THE SITE. TRAINED INDIVIDUALS ARE ALSO RESPONSIBLE FOR IMPLEMENTATION OF THE SWPPP
AND COMPLIANCE WITH THE GENERAL PERMIT UNTIL THE CONSTRUCTION ACTIVITIES ARE COMPLETE, PERMANENT
COVER HAS BEEN ESTABLISHED, AND A NOTICE OF TERMINATION (NOT) HAS BEEN SUBMITTED. (CSW PERMIT ITEMS
5.20, 5.21, AND 11.9 AND SECTION 21)
THESE INDIVIDUALS WILL BE TRAINED IN ACCORDANCE WITH THE REQUIREMENTS OF THE GENERAL PERMIT,
INCLUDING THE REQUIREMENT THAT THE CONTENT AND EXTENT OF TRAINING WILL BE COMMENSURATE WITH THE
INDIVIDUAL'S JOB DUTIES AND RESPONSIBILITIES.
BELOW IS A LIST OF PEOPLE RESPONSIBLE FOR THIS PROJECT WHO ARE KNOWLEDGEABLE AND EXPERIENCED IN THE
APPLICATION OF EROSION PREVENTION AND SEDIMENT CONTROL BMPS.
TRAINED INDIVIDUAL RESPONSIBILITY TRAINING ENTITY* TRAINING DATE
ERIC FITZGERALD PREPARATION OF THE SWPPP UNIVERSITY OF MINNESOTA MARCH 2021
__________________ OVERSIGHT OF SWPPP IMPLEMENTA- __________________ ________________
TION, REVISION, AND AMMENDMENT
__________________ PERFORMANCE OF SWPPP INSPECTIONS __________________ _________________
__________________ PERFORMANCE OR SUPERVISION OF __________________ _________________
INSTALLATION, MAINTENANCE, AND
REPAIR OF BMPS
*TRAINING DOCUMENTATION AVAILABLE UPON REQUEST.
6.2 FREQUENCY OF INSPECTIONS: A TRAINED PERSON WILL ROUTINELY INSPECT THE ENTIRE CONSTRUCTION SITE.
(CSW PERMIT ITEMS 11.2, 11.10, AND 23.13)
·AT LEAST ONCE EVERY 7 DAYS DURING ACTIVE CONSTRUCTION
·WITHIN 24 HOURS AFTER A RAINFALL EVENT GREATER THAN 0.5 INCHES IN 24 HOURS
INSPECTION FREQUENCY MAY BE ADJUSTED UNDER THE FOLLOWING CIRCUMSTANCES:
·WHERE PARTS OF THE CONSTRUCTION AREAS HAVE PERMANENT COVER, BUT WORK REMAINS ON OTHER PARTS
OF THE SITE, INSPECTIONS OF THE AREAS WITH PERMANENT COVER MAY BE REDUCED TO ONCE PER MONTH.
·WHERE CONSTRUCTION AREAS HAVE PERMANENT COVER AND NO CONSTRUCTION ACTIVITY IS OCCURRING ON
THE SITE, INSPECTIONS CAN BE REDUCED TO ONCE PER MONTH AND, AFTER 12 MONTHS, MAY BE SUSPENDED
COMPLETELY UNTIL CONSTRUCTION ACTIVITY RESUMES.
·WHERE CONSTRUCTION ACTIVITY HAS BEEN SUSPENDED DUE TO FROZEN GROUND CONDITIONS, THE
INSPECTIONS MAY BE SUSPENDED. THE REQUIRED INSPECTIONS AND MAINTENANCE SCHEDULE MUST BEGIN
WITHIN 24 HOURS AFTER RUNOFF OCCURS AT THE SITE OR UPON RESUMING CONSTRUCTION, WHICHEVER
COMES FIRST.
6.3 INSPECTION REQUIREMENTS: EACH CONSTRUCTION STORMWATER SITE INSPECTION WILL INCLUDE INSPECTION
OF THE FOLLOWING AREAS: (CSW PERMIT ITEMS 11.3 THROUGH 11.8)
·ALL EROSION PREVENTION AND SEDIMENT CONTROL BMPS AND POLLUTION PREVENTION MANAGEMENT
MEASURES
·SURFACE WATERS FOR EVIDENCE OF EROSION AND SEDIMENT DEPOSITION
·CONSTRUCTION SITE VEHICLE EXIT LOCATIONS FOR EVIDENCE OF OFFSITE SEDIMENT TRACKING
·STREETS AND OTHER AREAS ADJACENT TO THE PROJECT FOR EVIDENCE OF OFF SITE ACCUMULATIONS OF
SEDIMENT
6.4 MAINTENANCE REQUIREMENTS: MAINTENANCE OF THE FOLLOWING AREAS AND BMPS WILL BE PERFORMED AS
FOLLOWS: (CSW PERMIT ITEMS 11.3 THROUGH 11.8)
·NONFUNCTIONAL BMPS WILL BE REPAIRED, REPLACED, OR SUPPLEMENTED WITH FUNCTIONAL BMPS BY THE END
OF THE NEXT BUSINESS DAY AFTER DISCOVERY OR AS SOON AS FIELD CONDITIONS ALLOW ACCESS.
·PERIMETER CONTROL DEVICES WILL BE REPAIRED, REPLACED, OR SUPPLEMENTED WHEN THEY BECOME
NONFUNCTIONAL OR THE SEDIMENT REACHES 1/2 OF THE HEIGHT OF THE DEVICE.
·TEMPORARY AND PERMANENT SEDIMENTATION BASINS WILL BE DRAINED AND THE SEDIMENT REMOVED WHEN
THE DEPTH OF SEDIMENT COLLECTED IN THE BASIN REACHES 1/2 THE STORAGE VOLUME.
·DELTAS AND SEDIMENT DEPOSITED IN SURFACE WATERS WILL BE REMOVED, AND THE AREAS WHERE SEDIMENT
REMOVAL RESULTS IN EXPOSED SOIL WILL BE RE-STABILIZED. THE REMOVAL AND STABILIZATION WILL BE
COMPLETED WITHIN 7 CALENDAR DAYS OF DISCOVERY UNLESS PRECLUDED BY LEGAL, REGULATORY, OR
PHYSICAL ACCESS CONSTRAINTS. IF PRECLUDED DUE TO ACCESS CONSTRAINTS, REASONABLE EFFORTS TO
OBTAIN ACCESS WILL BE USED. REMOVAL AND STABILIZATION WILL TAKE PLACE WITHIN 7 CALENDAR DAYS OF
OBTAINING ACCESS.
·TRACKED SEDIMENT ON PAVED SURFACES WILL BE REMOVED WITHIN 1 CALENDAR DAY OF DISCOVERY.
·AREAS UNDERGOING STABILIZATION WILL BE RESTABILIZED AS NECESSARY TO ACHIEVE REQUIRED COVER.
6.5 RECORDKEEPING REQUIREMENTS: (CSW PERMIT ITEMS 11.11 AND 24.5 AND SECTIONS 6 AND 20)
1.ALL INSPECTIONS AND MAINTENANCE ACTIVITIES WILL BE RECORDED IN WRITING WITHIN 24 HOURS OF BEING
CONDUCTED AND THESE RECORDS WILL BE RETAINED WITH THE SWPPP. RECORDS OF EACH INSPECTION AND
MAINTENANCE ACTIVITY WILL INCLUDE THE DATE AND TIME; NAME OF INSPECTOR(S); FINDINGS OF INSPECTIONS;
CORRECTIVE ACTIONS (INCLUDING DATES, TIMES, AND PARTY COMPLETING MAINTENANCE ACTIVITIES); AND
DATE OF ALL RAINFALL EVENTS GREATER THAN 0.5 INCHES IN 24 HOURS AND THE AMOUNT OF RAINFALL FOR
EACH EVENT.
a.IF ANY DISCHARGE IS OBSERVED DURING THE INSPECTION, THE LOCATION AND APPEARANCE OF THE
DISCHARGE (I.E., COLOR, ODOR, SETTLED OR SUSPENDED SOLIDS, OIL SHEEN, AND OTHER OBVIOUS
INDICATORS OF POLLUTANTS) WILL BE DOCUMENTED AND A PHOTOGRAPH WILL BE TAKEN.
2.THE SWPPP WILL BE AMENDED TO INCLUDE ADDITIONAL OR MODIFIED BMPS TO CORRECT PROBLEMS OR
ADDRESS SITUATIONS WHENEVER THERE IS A CHANGE IN DESIGN, CONSTRUCTION, OPERATION, MAINTENANCE,
WEATHER, OR SEASONAL CONDITIONS THAT HAS A SIGNIFICANT EFFECT ON THE DISCHARGE OF POLLUTANTS TO
SURFACE WATERS OR GROUNDWATER.
a.THE SWPPP WILL BE AMENDED WHEN INSPECTIONS OR INVESTIGATIONS BY THE SITE OWNER, OPERATOR,
OR CONTRACTORS OR BY USEPA/MPCA OFFICIALS INDICATE THAT THE SWPPP IS NOT EFFECTIVE IN
ELIMINATING OR MINIMIZING THE DISCHARGE OF POLLUTANTS TO SURFACE WATERS OR GROUNDWATER;
THE DISCHARGES ARE CAUSING WATER QUALITY STANDARD EXCEEDANCES; OR THE SWPPP IS NOT
CONSISTENT WITH A USEPA APPROVED TMDL.
b.ANY AMENDMENTS TO THE SWPPP PROPOSED AS A RESULT OF THE INSPECTION WILL BE DOCUMENTED AS
REQUIRED WITHIN 7 CALENDAR DAYS.
c.AMENDMENTS WILL BE COMPLETED BY AN APPROPRIATELY TRAINED INDIVIDUAL. CHANGES INVOLVING THE
USE OF A LESS STRINGENT BMP WILL INCLUDE A JUSTIFICATION DESCRIBING HOW THE REPLACEMENT BMP
IS EFFECTIVE FOR THE SITE CHARACTERISTICS.
3.RECORDS RETENTION: THE SWPPP, INCLUDING ALL CHANGES TO IT, AND INSPECTION AND MAINTENANCE
RECORDS WILL BE KEPT AT THE SITE DURING CONSTRUCTION BY THE PERMITTEE WHO HAS OPERATIONAL
CONTROL OF THE SITE. THE SWPPP CAN BE KEPT IN EITHER A FIELD OFFICE OR IN AN ON SITE VEHICLE DURING
NORMAL WORKING HOURS.
4.RECORD AVAILABILITY: THE PERMITTEES WILL MAKE THE SWPPP, INCLUDING INSPECTION REPORTS,
MAINTENANCE RECORDS, AND TRAINING RECORDS, AVAILABLE TO FEDERAL, STATE, AND LOCAL OFFICIALS
WITHIN THREE DAYS UPON REQUEST FOR THE DURATION OF THE PERMIT COVERAGE AND FOR THREE YEARS
FOLLOWING THE NOTICE OF TERMINATION.
7.0 POLLUTION PREVENTION MEASURES:
1.ANY CONSTRUCTION PRODUCTS AND LANDSCAPE MATERIALS THAT HAVE THE POTENTIAL TO LEACH
POLLUTANTS WILL BE STORED UNDER COVER (E.G., PLASTIC SHEETING OR TEMPORARY ROOFS) TO PREVENT
DISCHARGE OF POLLUTANTS THROUGH MINIMIZATION OF CONTACT WITH STORMWATER. STORAGE OF SUCH
MATERIALS WITHIN THE PROJECT AREA WILL BE MINIMIZED TO THE EXTENT POSSIBLE. (CSW PERMIT ITEM 12.2)
2.PESTICIDES, FERTILIZERS, AND TREATMENT CHEMICALS WILL BE STORED UNDER COVER (E.G., PLASTIC
SHEETING, TEMPORARY ROOFS, WITHIN A BUILDING, OR IN WEATHER-PROOF CONTAINERS) TO PREVENT
DISCHARGE OF POLLUTANTS THROUGH MINIMIZATION OF CONTACT WITH STORMWATER. STORAGE OF SUCH
MATERIALS WITHIN THE PROJECT AREA WILL BE MINIMIZED TO THE EXTENT POSSIBLE. (CSW PERMIT ITEM 12.3)
3.HAZARDOUS MATERIALS AND TOXIC WASTE (E.G., OIL, DIESEL FUEL, GASOLINE, HYDRAULIC FLUIDS, PAINT
SOLVENTS, PETROLEUM-BASED PRODUCTS, WOOD PRESERVATIVES, ADDITIVES, CURING COMPOUNDS, AND
ACIDS) WILL BE STORED AND DISPOSED OF IN COMPLIANCE WITH MINNESOTA RULES CHAPTER 7045, INCLUDING
SECONDARY CONTAINMENT (AS APPLICABLE). HAZARDOUS MATERIALS WILL BE PROPERLY STORED IN SEALED
CONTAINERS TO PREVENT SPILLS, LEAKS, OR OTHER DISCHARGES AND PREVENT PRECIPITATION FROM FALLING
ONTO THE CONTAINERS OR STORED HAZARDOUS MATERIALS. (CSW PERMIT ITEMS 2.3 AND 12.4)
4.SOLID WASTE WILL BE COLLECTED, STORED, AND DISPOSED OF PROPERLY IN COMPLIANCE WITH MINNESOTA
RULES CHAPTER 7035. THIS INCLUDES STORAGE WITHIN COVERED TRASH CONTAINERS AND DAILY REMOVAL OF
LITTER AND DEBRIS. STORAGE OF SOLID WASTE WITHIN THE PROJECT AREA WILL BE MINIMIZED TO THE EXTENT
POSSIBLE. (CSW PERMIT ITEM 12.5)
5.PORTABLE TOILETS WILL BE LOCATED AWAY FROM SURFACE WATERS AND POSITIONED AND SECURED TO THE
GROUND SO THEY WILL NOT BE TIPPED OR KNOCKED OVER. SANITARY WASTE WILL BE DISPOSED OF IN
ACCORDANCE WITH MINNESOTA RULES, CHAPTER 7041. PORTABLE TOILETS WILL BE PERIODICALLY EMPTIED
AND THE WASTE HAULED OFF-SITE BY A LICENSED HAULER. (CSW PERMIT ITEM 12.6)
6.VEHICLE FUELING WILL ONLY OCCUR IN DESIGNATED AREAS. SPILL KITS SIZED APPROPRIATELY FOR THE
AMOUNT OF REFUELING TAKING PLACE WILL BE LOCATED. SPILL KITS WILL BE CLEARLY LABELED AND CONTAIN
MATERIALS TO ASSIST IN SPILL CLEANUP INCLUDING ABSORBENT PADS, BOOMS FOR CONTAINING SPILLS, AND
HEAVY-DUTY PROTECTIVE GLOVES. SPILLS WILL BE REPORTED TO THE MINNESOTA DUTY OFFICER AS REQUIRED
BY MINNESOTA STATUTES, SECTION 115.061. (CSW PERMIT ITEMS 2.3 AND 12.7)
a.ANY FUEL TANKS BROUGHT ON-SITE WILL HAVE PROPERLY SIZED CONTAINMENT AND WILL NOT BE TOPPED
OFF TO AVOID SPILLS FROM OVERFILLING. FUEL TANKS WILL MEET INDUSTRY STANDARDS (DESIGNED TO
HOLD FUEL TYPE, PROPERLY MAINTAINED, NOT ILLEGALLY MODIFIED, NOT MISSING LEAK INDICATOR
FLOATS FOR DOUBLE WALLED TANKS, SIGHT GAUGES NOT USED, ETC.) OR BE REMOVED FROM THE WORK
AREA.
b.GUIDELINES FOR SPILL PREVENTION AND RESPONSE INCLUDE:
-TAKE REASONABLE STEPS TO PREVENT THE DISCHARGE OF SPILLED OR LEAKED CHEMICALS,
INCLUDING FUEL, FROM ANY AREA WHERE CHEMICALS OR FUEL WILL BE LOADED OR UNLOADED,
INCLUDING THE USE OF DRIP PANS OR ABSORBENTS UNLESS INFEASIBLE;
-PERFORM REGULAR PREVENTATIVE MAINTENANCE ON TANKS AND FUEL LINES;
-INSPECT PUMPS, CYLINDERS, HOSES, VALVES, AND OTHER MECHANICAL EQUIPMENT ON-SITE FOR
DAMAGE OR DETERIORATION;
-DO NOT WASH OR RINSE FUELING AREAS WITH WATER;
-MAINTAIN ADEQUATE SUPPLIES TO CLEAN UP DISCHARGED MATERIALS AND PROVIDE AN
APPROPRIATE DISPOSAL METHOD FOR RECOVERED SPILLED MATERIALS;
-REPORT AND CLEAN UP SPILLS IMMEDIATELY AS REQUIRED BY MINNESOTA STATUTES, SECTION
115.061, USING DRY CLEAN UP MEASURES WHERE POSSIBLE; AND
-MAINTAIN COPIES OF SAFETY DATA SHEETS (SDSS) FOR HAZARDOUS MATERIALS ON-SITE IN
LOCATIONS READILY AVAILABLE TO EMERGENCY RESPONDERS.
7.IF VEHICLE AND EQUIPMENT WASHING IS NECESSARY, A VEHICLE WASH STATION WILL BE LOCATED IN A
DESIGNATED AREA. RUNOFF FROM THE WASHING AREA WILL BE CONTAINED IN A SEDIMENT BASIN AND WASTE
FROM THE WASHING ACTIVITY WILL BE PROPERLY DISPOSED OF. ANY SOAPS, DETERGENTS, OR SOLVENTS WILL
BE PROPERLY USED AND STORED. ANY DETERGENTS AND OTHER CLEANERS NOT PERMITTED FOR DISCHARGE
WILL NOT BE USED. (CSW PERMIT ITEMS 2.3 AND 12.8)
8.THE PROJECT WILL NOT RESULT IN CONCRETE OR OTHER WASHOUT ACTIVITIES. IF NECESSARY, A DESCRIPTION
OF THE STORAGE AND DISPOSAL OF CONCRETE AND OTHER WASHOUT WASTES SO THAT WASTES DO NOT
CONTACT THE GROUND WILL BE ADDED. (CSW PERMIT ITEMS 2.3 AND 12.9)
8.0 PERMANENT COVER AND PERMIT TERMINATION CONDITIONS:
1.THE AREAS DISTURBED DURING CONSTRUCTION WILL BE STABILIZED WITH PERMANENT COVER UPON
COMPLETION OF WORK. PERMANENT COVER MAY BE VEGETATIVE OR NON-VEGETATIVE, AS APPROPRIATE.
ESTABLISHMENT OF PERMANENT COVER MAY INCLUDE THE FOLLOWING ACTIVITIES: SEEDING, MULCHING,
EROSION CONTROL BLANKETS. (CSW PERMIT ITEM 5.17)
2.FOR A CONSTRUCTION-SITE TO ACHIEVE “PERMANENT COVER”, THE FOLLOWING REQUIREMENTS MUST BE
COMPLETED PRIOR TO TERMINATION OF PERMIT COVERAGE: (CSW PERMIT SECTIONS 4 AND 13)
a.ALL SOIL DISTURBING CONSTRUCTION ACTIVITIES HAVE BEEN COMPLETED AND PERMANENT COVER HAS
BEEN INSTALLED OVER ALL AREAS. VEGETATIVE COVER CONSISTS OF A UNIFORM PERENNIAL VEGETATION
WITH A DENSITY OF 70% OF ITS EXPECTED FINAL GROWTH. VEGETATION IS NOT REQUIRED WHERE THE
FUNCTION OF A SPECIFIC AREA DICTATES NO VEGETATION (SUCH AS IMPERVIOUS SURFACES OR THE BASE
OF A SAND FILTER).
b.ALL SEDIMENT HAS BEEN REMOVED FROM CONVEYANCE SYSTEMS, INCLUDING CULVERTS.
c.ALL TEMPORARY SYNTHETIC EROSION PREVENTION AND SEDIMENT CONTROL BMPS HAVE BEEN REMOVED.
BMPS DESIGNED TO DECOMPOSE ON-SITE MAY BE LEFT IN PLACE.
WITHIN 30 DAYS AFTER THE TERMINATION CONDITIONS ARE COMPLETE, A NOTICE OF TERMINATION (NOT) FORM WILL
BE SUBMITTED TO THE MPCA.
PROJECT
LOCATION
PROJECT LOCATION
SCALE IN FEET
20,00010,0000
CADD USER: ERIC P. FITZGERALD FILE: M:\DESIGN\23191480.00\SIBLEY\23191480_G-01_SWPPP.DWG PLOT SCALE: 1:2 PLOT DATE: 3/13/2023 5:27 PMSERVICE CENTER:
BY
DRAWINGREVISIONS
NO.DESCRIPTION DATE
DESIGNED BY:
APPROVED BY:
CHECKED BY:
DRAWN BY:
TYPE:
PROJECT:
DIVISION:CITY/COUNTY :IN SERVICE DATE:
HISTORY DATE
®
Suite 200
4300 MARKETPOINTE DRIVE
Fax: (952) 832-2601
www.barr.com
Ph: 1-800-632-2277
MINNEAPOLIS, MN 55435
05/18/2022
05/18/2022EPF
JPP
BARR
JPP NORTHERN STATES POWER COMPANY
NORTH
SIBLEY PHASE II FIRE SUPPRESSION
STORMWATER POLLUTION PREVENTION PLAN (SWPPP)
MENDOTA HEIGHTS / DAKOTA
4151
4501038238
B
ISSUED FOR CONSTRUCTION
05/18/2022
04/21/2022EPFISSUED FOR REVIEWA
05/18/2022EPFISSUED FOR CONSTRUCTIONB
05/18/2022
Page 66 of 68
XXXXXXX X X X X X X X X X X
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CADD USER: Eric P. Fitzgerald FILE: M:\DESIGN\23191480.00\SIBLEY\23191480_G-03_EROSION CONTROL PLAN.DWG PLOT SCALE: 1:2 PLOT DATE: 3/16/2023 2:46 PM2
-
PLAN: EROSION CONTROL NPROPERTY LINE (TYP.)
80400
SCALE IN FEET
EROSION & SEDIMENT CONTROL NOTES:
1.INSTALL PERIMETER EROSION CONTROL AT THE LOCATIONS SHOWN ON THE PLANS PRIOR TO THE
COMMENCEMENT OF ANY LAND DISTURBANCE OR CONSTRUCTION ACTIVITIES.
2.BEFORE BEGINNING CONSTRUCTION, INSTALL A TEMPORARY ROCK CONSTRUCTION ENTRANCE AT EACH
POINT WHERE VEHICLES EXIT THE CONSTRUCTION SITE PRIOR TO COMMENCING ANY CLEARING/GRUBBING,
REMOVAL, OR EARTHWORK ACTIVITIES. USE 2 INCH OR GREATER DIAMETER ROCK IN A LAYER AT LEAST 6
INCHES THICK ACROSS THE ENTIRE WIDTH OF THE ENTRANCE. EXTEND THE ROCK ENTRANCE AT LEAST 50
FEET INTO THE CONSTRUCTION ZONE USING A GEO-TEXTILE FABRIC BENEATH THE AGGREGATE TO
PREVENT MIGRATION OF SOIL INTO THE ROCK FROM BELOW.
3.REMOVE ALL SOILS AND SEDIMENTS TRACKED OR OTHERWISE DEPOSITED ONTO PUBLIC AND PRIVATE
PAVEMENT AREAS. AT A MINIMUM REMOVAL SHALL BE ONCE DAILY. SWEEPING SHALL BE MAINTAINED
THROUGHOUT THE DURATION OF THE CONSTRUCTION AND DONE IN A MANNER TO PREVENT DUST BEING
BLOWN TO ADJACENT PROPERTIES.
4.INSTALL INLET PROTECTION AT ALL CATCH BASIN INLETS WHICH RECEIVE RUNOFF FROM THE DISTURBED
AREAS. CONTRACTOR SHALL CLEAN, REMOVE SEDIMENT, OR REPLACE STORM DRAIN INLET PROTECTION
DEVICES ON A ROUTINE BASIS SUCH THAT THE DEVICES ARE FULLY FUNCTIONAL FOR THE NEXT RAIN
EVENT. SEDIMENT DEPOSITED IN AND/OR PLUGGING DRAINAGE SYSTEMS IS THE RESPONSIBILITY OF THE
CONTRACTOR. HAY BALES OR FILTER FABRIC WRAPPED GRATES ARE NOT ALLOWED FOR INLET
PROTECTION.
5.LOCATE SOIL OR DIRT STOCKPILES NO LESS THAN 25 FEET FROM ANY DRAINAGE CHANNEL. IF REMAINING
FOR MORE THAN SEVEN DAYS, STABILIZE THE STOCKPILES BY MULCHING, VEGETATIVE COVER, TARPS, OR
OTHER MEANS. CONTROL EROSION FROM ALL STOCKPILES BY PLACING SILT BARRIERS AROUND THE PILES.
6.MAINTAIN ALL TEMPORARY EROSION AND SEDIMENT CONTROL DEVICES IN PLACE UNTIL THE CONTRIBUTING
DRAINAGE AREA HAS BEEN STABILIZED. INSPECT TEMPORARY EROSION AND SEDIMENT CONTROL DEVICES
ON A DAILY BASIS AND REPLACE DETERIORATED, DAMAGED, OR ROTTED EROSION CONTROL DEVICES
IMMEDIATELY.
7.TEMPORARILY OR PERMANENTLY STABILIZE ALL CONSTRUCTION AREAS WHICH HAVE UNDERGONE FINAL
GRADING, AND ALL AREAS IN WHICH GRADING OR SITE BUILDING CONSTRUCTION OPERATIONS ARE NOT
ACTIVELY UNDERWAY AGAINST EROSION DUE TO RAIN, WIND AND RUNNING WATER. STABILIZATION TO
BEGIN IMMEDIATELY AND BE COMPLETED WITHIN 7 DAYS. USE SEED AND MULCH, EROSION CONTROL
MATTIING, AND/OR SODDING AND STAKING IN GREEN SPACE AREAS. REMOVE ALL TEMPORARY SYNTHETIC,
STRUCTURAL, NON-BIODEGRADABLE EROSION AND SEDIMENT CONTROL DEVICES AFTER THE SITE HAS
UNDERGONE FINAL STABILIZATION WITH PERMANENT VEGETATION ESTABLISHMENT. FINAL STABILIZATION
FOR PURPOSES OF THIS REMOVAL IS 70% ESTABLISHED COVER OVER DENUDED AREA.
8.CHANGES TO APPROVED EROSION CONTROL PLAN MUST BE APPROVED BY THE ENGINEER PRIOR TO
IMPLEMENTATION. CONTRACTOR TO PROVIDE INSTALLATION AND DETAILS FOR ALL PROPOSED ALTERNATE
TYPE DEVICES.
9.IF DEWATERING OR PUMPING OF WATER IS NECESSARY, THE CONTRACTOR IS RESPONSIBLE FOR
OBTAINING ANY NECESSARY PERMITS AND/OR APPROVALS PRIOR TO DISCHARGE OF ANY WATER FROM THE
SITE. IF THE DISCHARGE FROM THE DEWATERING OR PUMPING PROCESS IS TURBID OR CONTAINS
SEDIMENT LADEN WATER, IT MUST BE TREATED THROUGH THE USE OF SEDIMENT TRAPS, VEGETATIVE
FILTER STRIPS, FILTER BAGS (PUMP-IT TUBE DEWATERING BAGS OR EQUAL), OR OTHER SEDIMENT
REDUCING MEASURES SUCH THAT THE DISCHARGE IS NOT VISIBLY DIFFERENT FROM THE RECEIVING
WATER. ADDITIONAL EROSION CONTROL MEASURES MAY BE REQUIRED AT THE DISCHARGE POINT TO
PREVENT SCOUR EROSION.
10.PLACE EROSION CONTROL BLANKET ON ALL DISTURBED AREAS. EROSION CONTROL BLANKET MUST BE
2-SIDED WITH NATURAL NETTING, MEETING MnDOT SPECIFICATIONS.
11.FINAL GRADING SHOWN ON CIVIL SHEETS.
12.DOWNSLOPE ARMORING AT STORM SEWER OUTFALL SHALL BE CONSTRUCTED IN SEMI-DRY CONDITIONS. IF
THE FEATURE IS NOT ABLE TO BE CONSTRUCTIED AND STABILIZED WITH ARMORING IN A SINGLE DAY,
EROSION CONTROL BLANKET SHALL BE PLACED OVER ANY DISTURBED CHANNEL AREAS UNTIL WORK
RESUMES.
13.FOR ALL DISTURBED SLOPE AREAS ADJACENT TO DOWNSLOPE ARMORING, PROVIDE EROSION CONTROL
BLANKET AND SEDIMENT CONTROL LOG (AS SLOPE BREAKS) WITHIN 7 DAYS OF COMPLETION OF WORK IN
THE AREA. SEE DETAILS 2, 3, AND 5 ON SHEET 4153.
EXISTING 10' CONTOUR
EXISTING 2' CONTOUR
SYMBOL AND PATTERN LEGEND
EXISTING PROPERTY LINE
EXISTING WATERMAIN
SYMBOL AND PATTERN LEGEND
XW
CONSTRUCTION LIMITS
GAS EXISTING GAS LINE
996
994
EXISTING FENCE
OE EXISTING OVERHEAD ELECTRIC
SF SILT FENCE
SL SEDIMENT CONTROL LOG
CONSTRUCTION LIMITS
DOULBLE ROW OF SILT FENCE
SEE 1
G-04
ROCK CONSTRUCTION ENTRANCE
SEE
4
G-04
CONTAINMENT
BASIN
TANK BANK 2 TANK BANK 1
TANK BANK 5 TANK BANK 4
TANK BANK 6
FLOW DIRECTION
PROTECT EXISTING
FENCE (TYP.)
TRENCH DRAIN
TRENCH DRAIN
DOUBLE ROW OF SILT FENCE
SEE 1
G-04
PROVIDE SILT FENCE DOWN GRADIENT OF
OUTFALL. REMOVE SILT FENCE ONCE
DOWNSLOPE ARMORING IS INSTALLED.
SEE 1
G-04
CULVERT OUTLET
OUTLET STRUCTURE
AND STORM SEWER
TRENCH DRAIN
DIVERSION DITCH
PROVIDE EROSION CONTROL BLANKET
FOLLOWING DITCH CONSTRUCTION
PROVIDE EROSION CONTROL BLANKET
ON ALL SLOPES 3H:1V OR STEEPER
ARMORING AT OUTFALL
(SEE CIVIL PLANS)
(SEE NOTES 12 AND 13)
ARMORING AT OUTFALL
(SEE CIVIL PLANS)
UPDATED FIRE
SUPPRESSION
LINE (TYP.)
SERVICE CENTER:
BY
DRAWINGREVISIONS
NO.DESCRIPTION DATE
DESIGNED BY:
APPROVED BY:
CHECKED BY:
DRAWN BY:
TYPE:
PROJECT:
DIVISION:CITY/COUNTY :IN SERVICE DATE:
HISTORY DATE
®
Suite 200
4300 MARKETPOINTE DRIVE
Fax: (952) 832-2601
www.barr.com
Ph: 1-800-632-2277
MINNEAPOLIS, MN 55435
03/16/2023
03/16/2023EPF
JPP
BARR
JPP NORTHERN STATES POWER COMPANY
NORTH
SIBLEY PHASE II FIRE SUPPRESSION
EROSION CONTROL PLAN
MENDOTA HEIGHTS / DAKOTA
4152
4501038238
C
ISSUED FOR CONSTRUCTION
03/16/2023
03/16/2023
04/21/2022EPFISSUED FOR REVIEWA
TRENCH DRAIN
W WATERMAIN
05/28/2022EPFISSUED FOR CONSTRUCTIONB
SILT FENCE
SEE 1
G-04
SILT FENCE
SEE 1
G-04
FARMDALE RD.
2
-
1
-
PLAN: EROSION CONTROL N80400
SCALE IN FEET
03/16/2023EPFADD WATER LINE, SHIFT CIVIL FEATURESC
SEE VIEWPORT 1
1
-
CONSTRUCTION LIMITS
C
Page 67 of 68
DETAIL: SILT FENCE - MACHINE SLICED
-
1
NOT TO SCALE
DOWNSTREAM VIEW
SECTION VIEW24" MIN.EMBED POST5 FT. MIN. LENGTH POST
AT 4 FT. MAX. SPACING
GEOTEXTILE FABRIC, 36" MIN.
MACHINE SLICE 8" TO 12"
DEPTH (PLUS 6" FLAP)
GRADE
PLASTIC ZIP TIES (MIN. 50 LBS
TENSILE STRENGTH) ON TOP
8" MIN. 3 PER POST
RUNOFF FLOW DIRECTION
MACHINE SLICE 8"-12"
DEPTH (PLUS 6" FLAP)
MACHINE SLICED SILT FENCE PER MN/DOT STD.
SPECIFICATION 3886, INSTALL PER MN/DOT
STD. SPEC. 2573
4' MAX.
(TYP.)
NOTES:
1.SILT FENCE SHALL BE INSTALLED PRIOR TO ANY GRADING WORK IN THE AREA TO BE PROTECTED AND SHALL BE MAINTAINED THROUGHOUT THE CONSTRUCTION PERIOD. SILT
FENCE AND ANY ACCUMULATED SEDIMENT SHALL BE REMOVED IN CONJUNCTION WITH THE FINAL GRADING AND SITE STABILIZATION.
2.SILT FENCE INSTALLATION AND MATERIALS SHALL MEET THE REQUIREMENTS OF MN/DOT SPECIFICATIONS 2573 AND 3886.
3.NO HOLES OR GAPS SHALL BE PRESENT IN/UNDER SILT FENCE. PREPARE AREA AS NEEDED TO SMOOTH SURFACE OR REMOVE DEBRIS.
4.WHEN SEDIMENT BUILD UP REACHES 1/2 OF FENCE HEIGHT, THE SILT FENCE SHOULD BE REMOVED OR A SECOND SILT FENCE INSTALLED UPSTREAM OF THE EXISTING FENCE AT A
SUITABLE DISTANCE.
5.WHEN SPLICES ARE NECESSARY MAKE SPLICE AT POST ACCORDING TO SPLICE DETAIL. PLACE THE END POST OF THE SECOND FENCE INSIDE THE END POST OF THE FIRST FENCE.
ROTATE BOTH POSTS TOGETHER AT LEAST 180 DEGREES TO CREATE A TIGHT SEAL WITH THE FABRIC MATERIAL. CUT THE FABRIC NEAR THE BOTTOM OF THE POSTS TO
ACCOMMODATE THE 6 INCH FLAP. THEN DRIVE BOTH POSTS AND BURY THE FLAP. COMPACT BACKFILL.
NOT TO SCALE
12' MI
N
DETAIL: CONSTRUCTION ENTRANCE - ROCK
AS R
E
Q
UI
R
E
D
-
NOTES:
1.MAINTAIN ENTRANCE THROUGHOUT THE CONSTRUCTION PERIOD
AND REPAIR OR REPLACE AS REQUIRED TO PREVENT TRACKING
OFFSITE.
2.REMOVE ENTRANCE IN CONJUNCTION WITH FINAL GRADING AND SITE
STABILIZATION.
4
LE
N
G
T
H
A
S
R
E
Q
U
I
R
E
D
50
'
M
I
N
I
M
U
M
EXPAND FOR TURNING
RADIUS AS REQUIRED 6" MINIMUM
1"-2" WASHED ROCK
GEOTEXTILE FABRIC (OPTIONAL)
FLOW
SEDIMENT LOG WOOD STAKE
16" MINIMUMSEDIMENT LOG
WOOD STAKE
16" MINIMUMDETAIL: EROSION LOG - STAKING
-
3
NOT TO SCALE
SIDE VIEW FLAT
FRONT VIEW
FLOW
SEDIMENT LOG
SIDE VIEW ON SLOPE 16" MINIMUM12"
MINIMUM
TOP VIEW
WOOD STAKE
OVERLAP ENDS
NOTES:
1.INSTALL SEDIMENT LOG ALONG CONTOURS (CONSTANT ELEVATION).
2.NO GAPS SHALL BE PRESENT UNDER SEDIMENT LOG. PREPARE AREA AS NEEDED TO
SMOOTH SURFACE OR REMOVE DEBRIS.
3.REMOVE ACCUMULATED SEDIMENT WHEN REACHING 1/2 OF LOG HEIGHT.
4.MAINTAIN SEDIMENT LOG THROUGHOUT THE CONSTRUCTION PERIOD AND REPAIR OR
REPLACED AS REQUIRED.4
2
6
2
3A
3B
SLOPE INSTALLATION
NOTES:
1.REFER TO MANUFACTURER RECOMMENDATIONS FOR STAPLE PATTERNS FOR SLOPE INSTALLATIONS.
2.PREPARE SOIL BY LOOSENING TOP 1-2 INCHES AND APPLY SEED (AND FERTILIZER WHERE REQUIRED)
PRIOR TO INSTALLING BLANKETS. GROUND SHOULD BE SMOOTH AND FREE OF DEBRIS.
3.BEGIN (A) AT THE TOP OF THE SLOPE AND ROLL THE BLANKETS DOWN OR (B) AT ONE END OF THE
SLOPE AND ROLL THE BLANKETS HORIZONTALLY ACROSS THE SLOPE.
4.THE EDGES OF PARALLEL BLANKETS MUST BE STAPLED WITH APPROXIMATELY 6" OVERLAP, WITH THE
UPHILL BLANKET ON TOP.
5.WHEN BLANKETS MUST BE SPLICED DOWN THE SLOPE, PLACE BLANKETS END OVER END (SHINGLE
STYLE) WITH APPROXIMATELY 6" OVERLAP. STAPLE THROUGH OVERLAPPED AREA, APPROXIMATELY
12" APART.
6.BLANKET MATERIALS SHALL BE AS SPECIFIED OR AS APPROVED BY ENGINEER.
2
-
DETAIL: EROSION CONTROL BLANKET - INSTALLATION
NOT TO SCALE
FLOW
10'
T
Y
P.
B
E
T
W
E
E
N
L
O
G
S FLOWFLOW
NOTES:
1.SEDIMENT CONTROL LOG SHALL BE INSTALLED SO THAT MIDDLE OF LOG IS
APPROXIMATELY 6" LOWER (DOWGRADIENT) TO CREATE A NATURAL FUNNELING
AND KEEP SEDIMENT OUT OF DOWNSLOPE ARMORING.
2.CORE MATERIAL SHALL BE BIODEGRADABLE OR RECYCLABLE, SUCH AS COCONUT
FIBERS. CORE MATERIAL SHALL BE COMPRESSED AND STUFFED INTO A NETTING.
3.CONTAINMENT MESH (NETTING) SHALL BE 100% BIODEGRADABLE MATERIAL SUCH
AS BURLAP, TWINE, ETC.
4.SEDIMENT CONTROL LOG SHALL BE PLACED AS INDICATED ON THE PLANS AND
WITHIN 24 HOURS OF VEGETATATION REMOVAL.
5.SECURE SEDIMENT CONTROL LOG IN A METHOD ADEQUATE TO PREVENT
DISPLACEMENT AS A RESULT OF NORMAL RAIN EVENTS, SUCH THAT FLOW IS NOT
ALLOWED UNDER THE SEDIMENT CONTROL LOG. ALL MATERIALS USED TO SECURE
SEDIMENT CONTROL LOG SHALL BE 100% BIODEGRADABLE.
6.SEDIMENT CONTROL LOG SHALL BE NO LESS THAN 9" IN DIAMETER.
7.FOR SEDIMENT CONTROL LOG STAKING SEE
4
8
"
MAX
STAKES (TYP.)
SEDIMENT CONTROL LOG
FLOW
FLOWFLOW
FLOW
A
-
SEDIMENT CONTROL LOG
DETAIL: SEDIMENT CONTROL LOG (ALONG SLOPE)
-
5
NOT TO SCALE
4153
3
A
-
SECTION: SEDIMENT CONTROL LOG (ALONG SLOPE)
NOT TO SCALE
PLAN VIEW
MATCH LOG LENGTH TO
AREA OF DISTURBANCE
SEDIMENT CONTROL LOG
6" (T
Y
P.)CADD USER: Eric P. Fitzgerald FILE: M:\DESIGN\23191480.00\SIBLEY\23191480_G-04_EROSION CONTROL DETAILS.DWG PLOT SCALE: 1:2 PLOT DATE: 3/13/2023 5:38 PMSERVICE CENTER:
BY
DRAWINGREVISIONS
NO.DESCRIPTION DATE
DESIGNED BY:
APPROVED BY:
CHECKED BY:
DRAWN BY:
TYPE:
PROJECT:
DIVISION:CITY/COUNTY :IN SERVICE DATE:
HISTORY DATE
®
Suite 200
4300 MARKETPOINTE DRIVE
Fax: (952) 832-2601
www.barr.com
Ph: 1-800-632-2277
MINNEAPOLIS, MN 55435
05/18/2022
05/18/2022EPF
JPP
BARR
JPP NORTHERN STATES POWER COMPANY
NORTH
SIBLEY PHASE II FIRE SUPPRESSION
EROSION CONTROL DETAILS
MENDOTA HEIGHTS / DAKOTA
4153
4501038238
B
ISSUED FOR CONSTRUCTION
05/18/2022
04/21/2022EPFISSUED FOR REVIEWA
05/18/2022EPFISSUED FOR CONSTRUCTIONB
05/18/2022
Page 68 of 68