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Home My WebLink About2016-09-27 City Engineer Review Letter Stantec Consulting Services Inc. 2335 Highway 36 West St. Paul MN 55113 Tel: (651) 636-4600 Stantec Fax: (651) 636-1311 27, September 2016 P 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: Brackey Retail— Review of Revised Plans Dear Eric, We have reviewed the revised plans received 9/21/2106 regarding the proposed Brackey Retail Development. Following are our comments and recommendations: Stormwater/Drainage 1. The project is subject to review by the Brown's Creek Watershed District.The City shall be provided a copy of the permit approval letter from the BCWD prior to the commencement of construction activity. 2. The proposed filtration pond shall be installed with an impermeable liner directly below the draintile to minimize infiltration within the City's High Vulnerability Drinking Water Supply Management Area. Traffic Analysis Letter No items were received addressing the previous comments shown below. 1. It is assumed that Washington County or MnDOT has requested this letter(not Ramsey County). 2. Please include the date of the traffic counts in the third paragraph under Existing Conditions(Page 1). 3. Provide justification that land use code 826 is appropriate for lots 1 and, in particular, lot 3. 4. Provide existing traffic volumes for 60th Street North and Krueger Lane,including PM Peak volumes. 5. Using the fitted curve equation instead of the average rate would result in 85 total vehicles at the PM Peak Hour for the Specialty Retail Center(Table 1). Mr.Eric Johnson Page 2 of 3 Reference:Brackey Retail-Plan and Drainage Design Review 6. The internal capture percentage in Table 1 is ok if code 826 is appropriate for the specialty retail. 7. The assumed trip distribution shown on page 2 does not match Exhibit 2. Site Plan 1. Previous comments have been addressed. Erosion Control Plan, Drainage and Grading Plan(s) 1. As indicated previously,the proposed filtration pond shall be installed with an impermeable liner directly below the draintile to minimize infiltration within the City's High Vulnerability Drinking Water Supply Management Area. 2. Make note on the Drainage and Grading Plan(s)that the detail for Riprap At Outlets is found on the Erosion Control Detail Sheet. 3. Show Riprap at FES-5 on the Phase II Drainage and Grading plan. Utility Plan i. Include the Utility Plan notes on the Phase II plan. 2. Revise Note 15 to indicate the following: Contractor is responsible for complying with the specifications and requirements of Oak Park Heights with regards to materials, installation and testing of the water and sewer lines. General Comments 1. The City reserves the right to inspect the construction of the project. The City or its designee shall be present for water and sanitary sewer service connections to the City's systems and all testing of the systems. 2. The Owner will need to comply with all requirements of the NPDES Construction Stormwater Permit and the Brown's Creek Watershed District. The City reserves the right to require additional erosion control measures as determined/necessary during the construction of the project. Riprap placed on the project will be reviewed for adequacy; additional may be required if necessary. 3. The Owner shall be responsible for obtaining all required permits. Mr.Eric Johnson Page 3 of 3 Reference:Brackey Retail—Plan and Drainage Design Review If you have any questions or require further information,please do not hesitate to contact me. Regards, STANTEC CONSULTING SERVICES INC. 4-311. 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 Julie Hultman From: Mann, Lee <Lee.Mann@stantec.com> Sent: Tuesday, September 27, 2016 9:52 AM To: Eric Johnson Cc: Andrew Kegley;Julie Hultman; Scott Richards (Scott@PlanningCo.com); Mark Vierling (MVierling@eckberglammers.com); Lisa Danielson Subject: Oak Park Heights Retail Development - Brackey Property Attachments: johnson_mann_2016-09-027_BrackeyRetail_review.pdf Eric, Attached is our review of the plans received last week for the Brackey Property Development. Let me know if there are any questions. Lee Principal Stantec 2335 Highway 36 West St. Paul MN 55113-3819 Phone: (651) 604-4850 Cell: (651) 775-5956 Lee.Mann@stantec.com StAntec The content of this email is the confidential property of Stantec and should not be copied,modified,retransmitted,or used for any purpose except with Stantec's written authorization.If you are not the intended recipient,please delete all copies and notify us immediately. ►'�,` ., _ �`.;, t. to , .... 1