Agenda - Public Works Committee - 06/17/2014

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subsoil. Six inch concrete curb and gutter will be installed along each side of the pavement edge with pedestrian ramps at each street corner, The roadway centerline and both edge lines will be appropriately stripped to allow for parking and bicycle travel on the north and east sides of the street, The south and west sides shall be posted to restrict parking. A five foot wide concrete sidewalk may be installed along the north and east sides of both Andrie Street and 164th Ave. Contract documents will request an alternate bid for the sidewalk. The City Council will evaluate the alternate bids and decide at the time the contract is to be awarded whether or not the sidewalk will be installed. If included in the project, the sidewalk will vary in its distance from the back of curb to minimize impact to desirable trees. Property owners with landscape features will be contacted to discuss modifications. Retaining wall may be necessary in several locations in order to accommodate the sidewalk. This project will include connecting existing driveways to the newly paved streets. In instances where there is no existing paved driveway an apron will be constructed from the edge of the roadway to the property line to prevent tracking of dirt onto the street. Property owners with unpaved drives will be contacted individually to determine the desired material and width of the driveway approach. Property owners with paved drives will have their driveways restored with the same width and material, City standards allow up to a 30 feet wide driveway at the street in this zoning district, The pavement shall be neatly sawed where a new portionof the driveway will meet the existing drive. A copy of a typical cross section of the proposed roadway is included in Figure 2, The project shall include the replacement of all the existing storm basins and the addition of approximately 1000 feet of storm sewer to improve drainage in those areas where an excessive length of flow along the curb is required for storm water to enter into a catch basin. Figure 3 contains a sketch of the proposed drainage improvements. Restoration shall include the protection or repair of any irrigation systems or invisible fence. Mail boxes may be relocated to accommodate construction but shall be returned to their original locations upon termination of the project. Disturbed turf areas shall be restored with top soil, fertilizer, seed and mulch. ESTIMATED COSTS The estimated total project cost of the basic project, which excludes the installation of a five foot concrete sidewalk on the north and east sides of the street, is estimated to be $1,233,539, The cost of an alternate project which would include sidewalk would increase the project cost by $357,694 to a total of $1,591,233. Details of the project construction cost are presented in Appendix B, The project overhead, which adds an additional 30 % of the construction cost include the following: Engineering design 8%' Page 3