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Public Amenities Master Plan 7 <br /> Preliminary Cost Estimate July 2009 <br /> Riverfront Trail, Group Picnic, <br /> and Connections to Simpson Pad <br /> Description of Potential Project Elements <br /> Reconstruct and widen existing Riverfront Trail, including expanded or separate soft <br /> surface pedestrian path; structured major bank repair/stabilization near WSDOT pond <br /> outfall (High estimate); construct new trail connectors from Riverfront Trail to Simpson Pad <br /> (including boardwalk segment and accessible trail with reinforced grass surface shoulders); <br /> realign portion of Riverfront Trail to avoid slump at shore, joining developer's north <br /> Simpson Pad trail; restore disturbed trail area with native plantings; provide Group Picnic <br /> open shelter with water, power, interpretive signage/station; concrete plaza/patio and <br /> tables at shelter; reinforced grass surface accessible parking space; individual picnic tables <br /> and accessible tables along trail; partial reduction of lawn area with restoration to <br /> native/shoreline plantings. <br /> Estimated Area Costs Low High <br /> Earthwork $200,000. $265,000. <br /> Bank stabilization and shoreline planting enhan. 300,000. 1,453,000. <br /> Utilities and lighting 10,000. 10,000. <br /> Drainage 15,000. 15,000. <br /> Structures 50,000. 350,000. <br /> Site furnishings and signage 75,000. 150,000. <br /> Pavement 140,000. 155,000. <br /> Soil preparation and planting 25,000. 25.000. <br /> Subtotal 815,000. 2,423,000. <br /> 10% Mobilization 81,500. 242,300. <br /> 20% Contingency 163,000. 533.100. <br /> Subtotal 1,059,500. 3,198,400. <br /> 9.2% Sales tax 97,500. 294,300. <br /> 20% Engineering and Construction Admin. 211,900. 639,700. <br /> TOTAL $1,368,900. $4,132,400. <br /> Page 6 of 9 <br /> 99. <br />