09/09/2020 P&Z Packet - Laserfiche WebLink

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wsb Memorandum To: Katie Larsen, City Planner, City of Lino Lakes From: Diane Hankee, City Engineer, City of Lino Lakes Date: September 2, 2020 Re: Burque Concept Plan WSB has reviewed the Burque Property Concept Plan for a 152 unit PUD prepared by Sambatek and submitted on August 8, 2020. Engineering • Erosion Control & Grading The proposed Burque Property project would require mass site grading, appurtenant erosion control and SWPPP. • Stormwater Management The Burque owned area of the site, 58.24 acres, overland flows to onsite private ditches that then flow through a culvert under 20th Ave and eventually outlets to Lake Amelia within VLAWMO. The Emmerich (Outlot A Northpointe 5th Addition) owned parcel, 4.48 areas, drains through the Northpointe Development which outlets through a culvert under 135E to JD3 within RCWD. There is a culvert under 135E at the Burque Property that brings water from the east side of 135E to the site. The concept plan does not identify proposed surfacewater management. The applicant will be required to meet the City of Lino Lakes and RCWD rules for surfacewater management. We anticipate a reduction in the amount of proposed lots to accommodate drainage. This could lead to a change in the proposed densities. • Water Supply There is an existing 16-inch diameter trunk watermain within Cypress St that will need to be looped to the existing 16-inch diameter trunk watermain at Birch St. A 12-inch diameter watermain will need to be extended south through the property or along 20th Avenue. It should then loop back to the existing 8-inch diameter watermain within Chestnut St. • Sanitary Sewer There is existing 8-inch polyvinyl chloride (PVC) sanitary sewer within Cypress St that will need to be extended south to serve the south portion site. The sanitary sewer at Chestnut St is not deep enough to serve the south portion site. We recommend that the City consider project phasing such that the utilities are extended to the south with the first phase. • Transportation The Burque property is adjacent to 1-35E which is a Principal Arterial, 20th Avenue (CSAH 54) which is A -Minor Arterial Reliever, Birch Street (CSAH 34) is a Major Collector road, Cypress Street and Chestnut Street are local roads. Cypress Street is planned to be connected to Birch Street as outlined in the City's Comprehensive Plan. A traffic study will be required for the site. Based on ITE Traffic Generation rates, the proposed development is anticipated to generate a total of 1,148 daily trips, 86 AM peak hour trips and 114 PM peak hour trips.