Agenda - Council - 05/13/2003 - Laserfiche WebLink

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-156- easements must be dedicated to the City over all areas necessary watermains. The proposed water system is illustrated in Figure 4. to service the public The existing drainage system is proposed to be replaced with four storm manholes and 630 feet of 12 to 24 inch storm pipe which would transmit the runoff into the stormwater pond which is located immediately east of Oak Terrace. It will also be necessary to increase the size of the detention pond to meet current storm water quahty standards. A review of the capacity within the existing pond may reveal that excess pond capacity i s available within the existing pond. However, it is should be anticipated that the pond will need to be expanded to some degree. It appears that area for such a pond expansion is available on the west end of the Sunfish Commons area and the eastern portion of the Oak Terrace property. The proposed storm water system is illustrated in Figure 5. All areas disturbed by the installation of any sewer or watermain facilities shall be restored to its original condition or better. This includes all turfed and paved areas. Minor changes in grade along the private drive along the railroad tracks will be made to eliminate the existing depressions. Proiect Costs Detailed construction cost estimates for the proposed improvements are contained in Appendix C. In addition to construction costs an additional 30% will be required to cover additional project overhead charges which include project design and bidding, legal, financing and administrative, project inspection and contingencies. All the costs identified with the project improvements are directly attributable to improvements made within the Oak Terrace estates property, with the exception of the sanitary sewer extension through Lot 1 of the adjacent Sunfish Commons strip mall development. This portion of the project cost is estimated to be $13,228. A summary of the project cost is illustrated in Table 1 below: Construction Cost Sanitary Sewer 86,5 l 4 Watermain 43,405 Storm Sewer 26,580 Table 1 Overhead 30% Total Project Cost 25,954 112,468 13,022 56,427 7,974 34,554 Total $156,499 $46,950 $203,449 All of the above costs are associated with ~mprovements which will become a part of.!he public utilities system. There may be additional costs associated with these improvements which will occur outside the areas for which the City has drainage and utility easements (outside the I I I I I i I I I I I, I I I I I I I I