Southways_FinalPlatReview-1_2018-05-04

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H:\ORNO\C13115486\z-18-3999_Brackets Point\Southways_FinalPlatReview-1_2018-05-04.docx May 4, 2018 City of Orono Attn: Jeremy Barnhart 2750 Kelley Parkway Orono, MN 55356 RE: Final Plat Application Southways Addition Engineering Review #1 Dear Jeremy: As requested, I have completed an engineering review of the documents submitted for the above referenced project. In addition, Adam Edwards has provided comments for inclusion with this review. We offer the following observations, comments, and recommendations for your consideration: 1.The condition of Bracketts Point Road to remain should be reviewed by the City and Contractor prior to any work, and the existing condition should be documented with pictures. After completion of work, the street should be reviewed for damage, and the Contractor should be required to repair any damage deemed to be caused by site work. 2.Work within public right-of-way must be coordinated with the Public Works Department. Contractor must provide a minimum 48 hour notice prior to any work being performed. Notes should be revised accordingly. 3.The proposed lift station will require a minimum of 20’ radius of permanent easement centered on the lift station. If the station location is shifted, a working area for the valve vault will need to be maintained as well. The proposed grading will need to be revised to accommodate the concrete generator pad (elevation of 937.0 sloped away from the station at 2%) and screening. The last 20’ of pipe prior to the station will need to be ductile iron. The Engineer’s Estimate should include $150,000 for the work associated with the lift station construction as part of the Developer’s responsibility. A sketch has been included with this letter to aid in layout of proposed facilities. 4.The applicant will be required to obtain Minnehaha Creek Watershed District (MCWD) approval and permitting. A copy of any approvals or permits required should be submitted prior to Final Plat approval. 5.The applicant will be required to obtain a General Construction Permit (NPDES) to discharge stormwater associated with construction activity since more than 1 acre will be disturbed. A copy of the permit should be submitted prior to any land disturbing activity. 6.The applicant will be required to obtain a Sanitary Sewer Extension permit from the Minnesota Pollution Control Agency. A final copy of the permit should be submitted prior to construction. 7.The applicant will be required to submit a Maintenance Agreement for all stormwater management structures and facilities. The agreement should define maintenance responsibilities following completion of project, specify types and frequencies of inspection and maintenance activities, designate who will conduct inspection and maintenance activities, and outline reporting requirements.