05-12-1997 Council Packet - Laserfiche WebLink

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REQUEST FOR COUNCIL ACTION COUNCIL MEET1NQ MAY 12 1997 cmroFonoNol DATE: May 12, 1997 ITEM NO Department Approval: Name Gregory A. Gappa Title Director of Public Services Administrator Reviewed:Agenda Section: Engineer's Report Item Description: CR 19 (North Shore Drive)/ Tonka View Lane Drainage Situation At the April 28, 1997 City Council meeting, during the public comment period, property owners along North Shore Drive presented information on flooding problems. The intent of this memo is to provide a brief summary of this issue and obtain Council authorization to begin work on a proposed solution to this problem. Property Owners: John Bessessen, 4500 North Shore Drive Kathy Sawicki, 4510 North Shore Drive Attached you will find a highlight of damages caused to these two properties prepared by the owners. This summarv of issues along with copies of past correspondence was presented to the Council members at the last meeting. The property owners have also retained the services of Mattke Engineering Inc. for preparation of a hydraulic drainage analysis. This report was also provided to Council members at the last meeting. These two houses are located along North Shore Drive between the highway and Lake i.I;;;ncronka. The houses are at a lower elevation than the road, so runoff from the road ditch and roadway has historically flowed toward the houses, then into Lake Minnetonka. Tonka View Lane is located uphill and to the west along North Shore Drive. The water flows down Tonka View Lane and then to the east along North Shore Drive towards the subject properties. (See attached map) The property owners are claiming that additional houses and hardcover constructed along Tonka View Lane has resulted in increased runoff being directed toward the subject properties. The increased flows from Tonka View Lane and CR 19 also coincide with work completed by the County to clear the roadside ditch. This ditch work has increased the velocity of the water flowing to the subject properties. Several solutions have been attempted to correct this situation. Hennepin County has installed curbing, graded ditches, and completed pavement overlays to reduce the amount of flow being