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HomeMy WebLinkAbout13.C.2. Upper Valley Drainageway Slope Stabilization Project in Scenic Heightsl• CITY OF SHAKOPEE Memorandum TO: Mayor & City Council Mark McNeill, City Administrator FROM: Bruce Loney, Public Works Director SUBJECT: Consider Upper Valley Drainageway Slope Stabilization Project in Scenic Heights DATE: June 7, 2011 Attached to this memo is a plan sheet for the slope stabilization improvement project in the Upper Valley Drainageway in Scenic Heights. Staff is seeking approval of the plans and authorization to obtain quotes. BACKGROUND: Included in the 2011 Budget is a 2011 Capital Improvement Program and attached is a sheet in the storm drainage category for an annual erosion control project. Staff has found areas of slope stabilization and eroded rip -rap areas in the Upper Valley Drainageway that need to be corrected and repaired. The attached plan sheet provides for a series of retaining walls to provide for the proper slope stabilization, as well as new vegetation behind the retaining walls and new concrete block to be utilized versus rip rap in the bottom of the channel. Staff did a similar project in the Upper Valley Drainageway near Sarazin Street and pictures are attached showing that improvement project. Also attached are pictures of the site showing the issues with slope stabilization and the eroded rip rap. It is the intent of staff to obtain Council approval of the design, obtain quotes and bring those quotes back for Council approval and for construction later this summer. The estimated cost of this improvement is $63,000.00. Staff is seeking approval of plans for the slope stabilization project in the Upper Valley Drainageway near Scenic Heights and to obtain quotes for the project. Other areas of slope stabilization projects would be by C.R. 17 (west and east) and 4 th Avenue in the Upper Valley Drainageway. ALTERNATIVES: Approve the plans for the slope stabilization project in the Upper Valley Drainageway in Scenic Heights and direct staff to obtain quotes for this project. 2. Do not approve the plans for slope stabilization in the Upper Valley Drainageway in Scenic Heights. 3. Table for additional information. RECOMMENDATION: Staff would recommend Alternative No. 1, in order to improve the storm drainage system in the City of Shakopee. ACTION REOUESTED: Approve the plans for the slope stabilization project in the Upper Valley Drainageway in Scenic Heights and direct staff to obtain quotes for this project. ruce o .E. Y Public W irector ENGW 2011- PROECTSJSCENIC-HElGHTS/WORD IAPPRO V E -PLANS ;e! / ( ( § { \ o \ . 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