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Public Amenities Master Plan 7 <br /> Preliminary Cost Estimate July 2009 <br /> Lowell Riverfront Park <br /> Description of Potential Project Elements <br /> Improve existing entry providing new entry gate; upgrade gravel parking to asphalt and <br /> reconfigure for turnaround/drop-off; provide concrete sidewalk connections to street; <br /> construct water quality improvement swales; new multipurpose building with restrooms, <br /> storage, and/or meeting/classroom space; concrete plazas and patios; interpretive <br /> signage/station; bollard or low area landscape lighting; stabilize riverbank for restricted <br /> public access; bioengineer bank stabilization as appropriate; reconstruct and widen existing <br /> asphalt trail; restoration of portions of shoreline to native/shoreline plantings. <br /> Estimated Area Costs Low High <br /> Earthwork $175,000. $175,000. <br /> Bank stabilization and enhancement 545,000. 545,000. <br /> Utilities and lighting 30,000. 30,000. <br /> Drainage 56,500. 56,500. <br /> Structures 500,000. 1,200,000. <br /> Site furnishings and signage 75,000. 150,000. <br /> Pavement and curbs 200,000. 256,700. <br /> Soil preparation, irrigation and planting 125.000. 125.000. <br /> Subtotal 1,706,500. 2,538,200. <br /> 10% Mobilization 170,600. 253,800. <br /> 20% Contingency 341.300. 507.600. <br /> Subtotal 2,218,400. 3,299,600. <br /> 9.2%Sales tax 204,000. 303,500. <br /> 20% Engineering and Construction Admin. 443,700. 659,900. <br /> TOTAL $2,866,100. $4,263,000. <br /> Page 8 of 9 <br /> 101 <br />