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<br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br /> <br />Widening of HWY 6 Bridge <br />. Width of each bridge is 38 feet <br />. Older timber bridge would be replaced <br />. 20' x 8' RCBs would be added to the southbound bridge as an alternative to widening the <br />bridge <br /> <br />Road/Driveway Depressions <br />. 24' wide non-paved road section <br />. Maximum grade 5 % <br />. low flow culverts <br />. Surface hardening along channel bottom <br /> <br />Land Acquisition for Levees <br />. Assume 5 feet beyond the toe of the levee (both sides) to determine required right-of-way. <br />. Assume fee simple property acquisition for land under levees/channels <br />. Assume flow easement for land between levees if land can still be farmed <br /> <br />Using the conceptual design, an estimate of construction quantities was prepared for the proposed <br />improvements. These quantities were tabulated and assigned a unit cost, and a construction cost was. <br />determined. Unit costs were derived from values published by FEMA (G.2 Numeric Cost Code <br />Listing for Region 8). Where needed, the published rates were supplemented and altered to reflect <br />local conditions with additional unit prices derived from actual bid tabulations for similar work as <br />published by the Urban Drainage and Flood Control District. Primary unit costs for each item are <br />presented in the following table. <br /> <br />Table 3. Unit Costs for Pawnee Creek Improvements <br /> <br />Item <br /> <br />Unit <br /> <br />Cost <br /> <br />Mobilization <br />Engineering <br />Legal! Administration <br />Property Acquisition (fee simple) <br />Property Acquisition (flow Easement) <br />Clearing & Grubbing <br />Remove & Replace Topsoil <br />Excavation & Fill for Levees <br />Riprap <br />Seeding for Revegetation <br />Structural Concrete <br />6" Full Depth Asphalt <br />Bridges <br />County Road Depression <br />Driveway Depression <br /> <br />LS <br />LS <br />LS <br />AC <br />AC <br />AC <br />CY <br />CY <br />TN <br />AC <br />CY <br />SY <br />SF <br />LF <br />LF <br /> <br />5% of Construction Cost <br />12% of Construction Cost <br />5% of Construction Cost <br />$ 2,500.00 <br />$ 500.00 <br />$ 500.00 <br />$ 2.00 <br />$ 3.00 <br />$ 35.00 <br />$ 3,500.00 <br />$ 500.00 <br />$ 12.00 <br />$ 70.00 <br />$ 70.00 <br />$ 30.00 <br /> <br />These unit costs include both materials, installation, and repair of disturbed property. These costs are <br />based upon bid tabulations from similar projects along the Front Range. <br /> <br />22 <br />