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<br />CENTRAL CITY MASTER DRAINAGE STUDY <br /> <br />30 <br /> <br />SECTION 6. COST ESTIMATES <br /> <br />6.1 General <br /> <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 />Cost estimates for each of the proposed drainage structures <br />discussed in Sections 5 and 6 are included below. Colorado <br />Department of Highways Cost Data was used for unit prices. <br />Conceptual designs as describe above were used to determine <br />quantities. Contingency and engineering allowances were 20 and <br />15 percent, respectively. <br /> <br />.. <br /> <br />6.2 <br /> <br />Cost Estimate Summary <br /> <br />Table 6.2.1 summarizes the results of preliminary cost estimates <br />for each of the ~onstruction recommendations of Sections 4 and 5. <br /> <br />Table 6.2.1. Summary of Preliminary Cost Estimates. <br /> <br />Location Estimated Cost <br /> <br />Dorothy Lee Detention Pond $ 88,100 <br /> <br />Opera House Flume Inlet Improvements $ 23,800 <br /> <br />Nevada Gulch Flume Inlet Improvements $ 12,200 <br /> <br />Spring, Roworth and Nevada Street $ 43,100 <br />Inlets <br /> <br />County Road Drain and Pipe $ 40,700 <br /> <br />High Street Rundowns and Register $ 94,000 <br />Alley Drain <br /> <br />Nevada and Spring Gulch Tailing and $221,900 <br />Slope Stabilization <br /> <br />Gregory Gulch/Lawrence Street $ 71,800 <br />Cribbing <br /> <br />MacFarlane Foundry Flume Replacement $ 65,700 <br /> <br />Prosser Loop Pipe Replacements $ 51,000 <br /> <br />Miscellaneous Construction (see App D) $ 29,400 <br /> <br />TOTAL $519,800 (1) <br /> <br />(1) Excluding Nevada and Spring Gulch tailing and slope <br />stabilization (see Section 9). <br /> <br />~ <br /> <br />HydroDynamics Incorporated <br /> <br />A <br />