Agenda - Council - 08/12/2003 - Laserfiche WebLink

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is proposed that 50% of the cost of the storm drainage and easements between the detention basin and the Helium St. project be allocated to be used in negotiations for right-of-way a, cross those benefited properties. See "EXHIBIT A" for detailed description of the proposed street and storm drainage improvements. B. Water System The proposed water system improvements will provide a minimum 8" water main with an 8" stub out in the western end of 152nd Ave. to allow the inter-connection to the water system provided in the other two project areas discussed earlier. All mains will be DIP. Fire hydrant spacing will be approximately 300 to 400 feet. One-inch service connections will be provided for all existing developed lots. Where the adjoining property is undeveloped, one-inch services will be provided at 85 foot intervals. See' "EXHIBIT B" for detailed description of the proposed water system improvements. C. Sanitary' Sewer System All proposed sanitary sewer lines will be 8" PVC pipe with manhole spacing at 400-feet maximum. The depth of the sanitary sewers will be between 10 to 12 feet except where more depth is required to connect to existing sewers, or where the deeper lines would be more cost effective. An eight (8") inch stub out at the western end of 152nd Ave. is proposed to receive sanitary sewagg' flows from the sanitary sewer system proposed in the adjacent Helium Street Extension project. However, no extraordinary depth was provided in the sewer design to maximize the upstream reach to properties outside the current project boundary. Where the adjoining property .is undeveloped, four-inch services will be provided at 85' intervals or as directed by the property owner. See "EXHIBIT C" for detailed description of the proposed sanitary sewer system improvements. The alignment of the sanitary sewer may change at the time of final design. 5.0 ESTIMATED COSTS The detailed estimate of construction cost for all of the improvements are Shown in "EXHIBIT D". The estimated cost of the construction and easement items to be shared with C.O.R. Project 02-20 are shown in "EXHIBIT E" The estimated project costs presented herein reflect the construction, right-of- way or easement, and overhead costs. Construction costs are estimated contract amounts for the actual construction. Right-of-way for construction of streets is calculated for a 60~foot wide right-of-way. Easement costs include Page -206- G:\Municipal~,RAMS EY\633\RA633FSR2.doc