HomeMy WebLinkAbout2023-10-18 Stantec Updated Plan Review Stantec Consulting Services Inc.
Stantec 733 Marquette Avenue Suite 1000,Minneapolis MN 55402-2309
October 18, 2023
File: 193800151
Attention: Mr. Jacob Rife
City of Oak Park Heights
14168 Oak Park Blvd.
Oak Park Height, MN 55082
Reference: Croixview Holdings—Updated Plan Review
Dear Jacob:
As requested, we have reviewed the revised plans dated October 11, 2023 regarding the proposed
office/warehouse project at 5416 Stagecoach Trail North. Following are our revised comments and/or
recommendations:
Sheet Cl —Grading and Erosion Control Plan
1. The plans should include additional detail regarding the retaining wall, including base material and
draintile outlet locations.
2. A significant portion of the southerly lot will be inundated with water prior to reaching the EOF of
782.0 for Rainwater Garden #1.
Sheet C2—Site Utilities and Stormwater
1. The plans should note that the proposed 6"water service should be connected to the existing 8"
watermain by open-cutting and installing an 8"x 6"tee. The City does not allow wet tap
connections.
2. A 6"Gate Valve and Box on the proposed water service line should be placed on the west side of
the road between the existing curb line and the future trail.
3. The Fire Marshal shall review the proposed watermain and determine the need for a fire hydrant on
the subject property.
Sheet C3—Site Plan
1. The Site Plan should denote the locations of the different concrete sections (i.e. distinguish
between concrete pavement, walks, aprons).
2. The proposed B612 Concrete Curb &Gutter Detail should note whether it refers to proposed
parking lot curb, or Stagecoach Trail curb patching.
3. Refer to the Fire Department review of fire lanes and circulation.
Design with cons a t7,r,
October 18,2023
Mr.Jacob Rife
Page 2 of 2
Reference: Croixview Holdings—Updated Plan Review
Storm Sewer/Storm Water Management
1. Provide documentation of Middle St. Croix Watershed Management Organization (MSCWMO)
approval.
2. Revise infiltration rate. Test Pits#6 and #7 are the only test pit locations that are within the
boundary of the proposed underground TDA system. Each test pit has a limiting soil layer of silty
sand (SP-SM) per the supplied soil borings submitted in July of 2023 as part of the CUP submittal.
Per the MPCA's Minnesota Stormwater Manual Design Infiltration Rates table this soil is between a
Hydrologic Soil Group A and B. Both SP (0.8 inches/hr) and SM (0.45 inches/hr) soils have lower
than 1 inch/hour infiltration rates. Since this soil is a combination soil, a composite infiltration rate
should be used, which would be the average of the SP and SM infiltration rates. If these soil
borings are inaccurate, please provide updated borings that support SP-SM not being present in
the infiltration area.
General Notes
1. Washington County needs to approve the proposed access dimensions and locations.
2. Review of parking, lighting, landscaping, or building items is by others.
3. The Owner shall be responsible for obtaining all required permits.
4. The City reserves the right to inspect the construction of the project. The City should be notified of
and be included in the preconstruction meeting.
If you have any questions or require further information, please do not hesitate to contact me.
Regards,
Stantec Consulting Services Inc.
4—:)/1/g
Lee M. Mann, PE MN,WI,CA
Principal
Phone: 612-712-2085
Lee.Mann@stantec.com
c. file
Julie Hultman, Building Official
Andrew Kegley, Director of Public Works
Scott Richards,City Planner
Design with community in mind
Julie Hultman
From: Mann, Lee <Lee.Mann@stantec.com>
Sent: Wednesday, October 18, 2023 1:45 PM
To: Jacob Rife
Cc: Julie Hultman;Andrew Kegley; Scott Richards (Scott@PlanningCo.com); Lance Elliott
Subject: Croixview Holdings updated plan review
Attachments: Rife_mannA10-18-2023_Croixview Holdings_Review.pdf
Follow Up Flag: FollowUp
Flag Status: Flagged
Hi Jake,
Attached is our review of the updated plans for the Croixview Holdings project. I have copied the developers engineer.
Let us know if you have any questions.
Thanks!
MN, WI, CA
Principal
Direct: 612-712-2085
Mobile: 651 775-5956
Lee.Mann@stantec.com
Stantec
2080 Wooddale Drive Suite 100
Woodbury MN 55125
Stantec
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