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<br />Cost Estimates <br /> <br />!')~~O <br />The estimated costs of the Flood Control Plans arl~ based on contractor <br /> <br />" <br /> <br />construction prices, including overhead and profit. <br /> <br />Unit prices are based on data from the Colorado Department of High- <br />ways (Reference 10), and increased 10% to account for regionally higher <br />prices in Montrose. <br /> <br />TABLE g <br />UN IT COSTS <br /> <br />Structural Excavation and Backfill <br /> <br />$ l1/cubic yard <br /> <br />Structural Concrete <br /> <br />2:75/ cubi c ya rd <br /> <br />Rock Ri prap <br />Bridge - 2-Lane <br />Bri dge - 4-Lane <br /> <br />;'2/cubi c yard <br /> <br />IW/ squa re foot <br /> <br />1~4/square foot <br /> <br />Aspha 1t <br /> <br />lID/cubic yard <br /> <br />Culvert Removal <br /> <br />~i5/foot <br /> <br />Final construction costs were calculated using these unit prices and <br /> <br />the detailed material quantities calculated For each study reach. Unit <br /> <br />costs were estimated using common materials and construction techniques <br /> <br />to produce the drainage facilities descr-ibecl on the prE,liminary plan <br />drawings. The use of alternate materials and construction methods could <br /> <br />result in a savings over what is presented here. A detailed study to <br /> <br /> <br />evaluate all possible design alternatives will be left for final design. <br /> <br />- 31 - <br />