10-14-2002 Council Packet - Laserfiche WebLink

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REUIS FD 1 4 2002REQUEST FOR COUNCIL ACTION CnruroHO/vo DATE- October 14,2002 ITEM NO.; y ^ Department Approval: Name Gregory A. Gappa Titk Director of Public Services Administrator Reviewed: Agenda Section: Public Strvices Director ’s Report Item Description: Crystal P<ty Road Drainage Project Introduction This project area is located at the west end of Old Crystal Bay Road. There is an existing metal pipe culvert under the railroad tracks that drains about 13 acres of fully developed land in the Navarre neighborhood. A drainage area map is included for your review. The storm water flow from this pipe drains overland through three properties that are located north of the railroad tracks then flows through a culvert under Crystal Bay Road and into Crystal Bay. There is significant erosion at the pipe outlet. These downstream properties are very flat and the houses and garages located on them are older and were built at a low elevation with poor drainage around them. This results in damage to the house foundations, flooded cra vl spaces, and water in the garages during heavy rains. Our understanding from the property owners is that problems became worse after 1995 when changes to the Shadywood Road railroad crossing and culvert and ditch cleaning activities were completed. In 1996, a possible project was considered to install a storm sewer pipe from the railroad pipe outlet to Crystal Bay. This project was never completed because of funding issues. The property owners objected to paying for this project because of the large drainage area upstream of the properties. The possibility of an assessment project was also discussed. Drainage assessment projects are always difficult to accomplish because the upstream property owners have no incentive to be assessed for the project costs as they arc not experiencing any negative impacts from the storm water drainage. The property owners have contacted us several times over the last few years concerning this situation, but no progress was made in solving the problem because of funding issues. The City now has a Stormwater Utility funding mechanism inplace to provide money for completion of storm water management projects. Our recommendation is that completion of a project in this area with stormwater utility funds is appropriate because of the large drainage area, and the amount of public street runoff that flows through these properties. The properties are substantially impacted by the large amount of storm water drainage that flows through this area. The concept of an assessment project to solve this problem is not a realistic option because the upstream properties in tlie drainage area are not experiencing any adverse impacts and therefore have no incentive to support an assessment project. Page 1 of 4 ill'