9.1. SR 01-07-2013 - Laserfiche WebLink

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2.4.2 Storm Sewer Reconstruction of the streets also provides a timely opportunity to improve drainage within the project areas with the installation of additional storm sewer facilities. Potential drainage improvements to be evaluated with final design of the project include: • Installing concrete curb and utter and storm sewer improvements along Business Center Drive, Gary Street, 3r Street NW, Railroad Drive, and 4th Street. • Installing concrete curb and gutter and supplementing existing storm sewer facilities with the installation of additional catch basins along 185th Avenue NW. The location of the storm sewer improvements, as well as the water quality improvements such as rain gardens or infiltration swales, will be further evaluated during the final design phase of this project. Manholes, manhole castings and catch basin castings are also proposed to be repaired/replaced to meet current City storm sewer standards as a part of the 2013 Street Improvement Project. 2.4.3 Water Main Improvements Existing 4-inch Cast Iron Pipe (CIP) along 4th Street NW from Jackson Road NW to Gates Avenue NW and along 3rd Street NW is proposed to be replaced with 8-inch Ductile Iron Pipe (DIP). Existing copper services along 3rd Street NW will be removed and replaced to the right-of-way whereas services along 4th Street NW will remain in place and reconnected to the new 8-inch main. These improvements will provide benefits to the water system in the area by increasing the flow capacity and eliminating the old cast iron pipe. A new 8-inch connection loop is also proposed to be installed along 185th Avenue NW between Queens Way NW and Waco Street NW and between approximately 300 feet east of Pascal Avenue NW and Naples Street NW. The new connection loop will help to improve fire flow and water quality issues associated with dead end water main lines as they currently exist. At the neighborhood open house that was held on December 13, 2012, a property owner raised the question as to whether or not individual water services would be provided to the properties that front on 185th Street. Individual water services were not included as part of this feasibility study due to the lack of readily available sanitary sewer. It is anticipated that water services would be provided at the same time sanitary sewer is constructed in this area. Appendix F includes an exhibit and cost estimate to add water services to this project. Feasibility Report 2013 Street Improvement Project City of Elk River,MN WSB Project No.1992-01 Page 11