2015.02.24 CC Packet Combined - Laserfiche WebLink

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City of `,EW MGHTON the cite that works %1r Vou interoffice MEMORANDUM to: Janice Gundlach, Assistant Director of Community Assets and Development from: Craig Schlichting, Director of Community Assets and Development subject: Eckson Development date: February 11, 2015 The Engineering Department and Public Works have reviewed the site plan and preliminary grading & utility plans for Eckson and we offer the following comments: Streets - 1. Portions of the existing curb and gutter and pavement on 13th Street and 12th Avenue NW will be removed for extensions of 12th Avenue NW. Please include more detailed intersection elevations to demonstrate water reaches the intended location (possibly including cross gutters for proper drainage). 2. Small utilities including power lines will require relocation. Facilities should be placed underground where possible. 3. Adjust the note on the plans indicating that the contractor must contact Dustin Lind in the Engineering Department at 651-638-2055for inspection of all street and utility work. 4. The proposed lighting should be added to the plans and the appropriate light documents/details should be provided to the Planning Department for review. 5. Portions of the existing street will be reconstructed based on disturbed areas from the sewer line grade revisions. Storm Sewer -Grading 1. Drainage calculations/areas including discharge rates, HWL's and storm sewer sizing are included; provide any updates with future submittals for our review. 2. A permit will be required from the Rice Creek Watershed District. The RCWD recognizes a HWL which is higher than FEMA. Compensatory storage for any fill within the HWL will be required. 3. If a cross gutters is required to properly drain the intersection it will need to be shown on the plans. 4. Site storm sewer will discharge into a new stormwater basin. The City will maintain this feature and an access route to the outlet structure must be provided. The stormwater calculations indicate a sumped catch basin with a SAFL Baffle. Details to be provided.