HomeMy WebLinkAbout2016-09-08 Stantec Plan & Drainage Review Letter Stantec Consulting Services Inc.
2335 Highway 36 West
St. Paul MN 55113
c)
Stantec Tel (651) 636-4600
Fax: (651) 636-1311
September 8, 2016
Mr. Eric Johnson,Administrator
City of Oak Park Heights
14168 Oak Park Blvd.N.,P.O. Box 2007
Oak Park Heights,MN 55082-2007
Reference: Xcel Baytown Substation— Plan and Drainage Review
Dear Eric,
We have performed a review of the plans re-submitted 8/23/2016 regarding the proposed Xcel
Baytown Substation project. Following are our comments and recommendations:
Stormwater/Drainage
1. The triangular section of land bound by the existing substation to the south,Nova Scotia
Avenue to the west,and the Goodwill driveway and parking lot to the south and east
currently drains to the east and then north to the existing beehive catch basin in the
northeast corner of the site. It doesn't appear that all of this area is accounted for in the
proposed conditions. How will this area drain if the stormwater pond sediment forebay is
cutting off the existing drainage route?The rate control calculations for both existing and
proposed conditions should be updated to account for all flow that will be routed through
stormwater pond.For questions regarding this comment,please contact our stormwater
engineer,Tyler Johnson at 651-604-4767.
General Comments
1. The City reserves the right to inspect the construction of the project.
2. The Owner will need to comply with all requirements of the NPDES Construction
Stormwater Permit and the Middle St. Croix Watershed Management Organization.The
City reserves the right to require additional erosion control measures as determined
necessary during the construction of the project.
3. The Owner shall be responsible for obtaining all required permits.
4. The stormwater facilities proposed for the site shall be considered private and shall be
owned and maintained by the Owner.
Mr.Eric Johnson
Page 2 of 2
Reference:Xcel Baytown Substation—Review of Preliminary Plans
If you have any questions or require further information,please do not hesitate to contact me.
Regards,
STANTEC CONSULTING SERVICES INC.
4-314
Lee M. Mann, P.E.
City Engineer
Phone: 651-604-4850
lee.mann@stantec.com
cc: Andy Kegley, Public Works Director
Julie Hultman, Building Official
Scott Richards,City Planner
Mark Vierling,City Attorney
Lisa Danielson,City Arborist