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<br />FLOOD DAMAGE REDUCTION MEASURES <br /> <br />PHYSICAL IMPROVEMENTS <br /> <br />~. <br />~c. . <br /> <br />No flood c9ntrol structures exist on the Cachela Poudre River <br /> <br /> <br />or its tributary streams except on Boxelder Creek. There are, <br /> <br /> <br />however, numerous irrigation and water supply reservoirs throughout <br /> <br /> <br />the basin. None of these reservoirs have storage capacity specifi- <br /> <br /> <br />cally for flood control and are operated to maintain storage neces- <br /> <br /> <br />sary to satisfY irrigation or water supply demands. Accordingly, <br /> <br /> <br />none of these reservoirs have any dependable flood control capa- <br /> <br /> <br />bility. <br /> <br />Under the provisions of the Watershed Protection and Flood <br />Prevention Act, the Soil Conservation Service has prepared a water- <br />shed work plan for the Boxelder Creek watershed. The plan provides <br />for installation of land treatment measures together vi th construc- <br />tion of five si~gle-purpose floodwater-retarding structures and one <br />grade-stabilizarion structure. In addition to onsite benefits to <br />land parcels on which land treatment measures would be installed, <br />the Soil Conservation Service estimates that the project may reduce <br />floodwater damages in the watershed by $171,310 annually. On 11 <br />April 1974, the Public Works Committee of the House of Representa- <br />tives approved t.he work plan for its installation. The floodwater- <br />retarding structures are under construction. <br /> <br />During preparation of the watershed work plan, the Soil Con- <br />servation Service developed a plan for channel improvement along <br />the lowermost 9.300 feet of Boxelder Creek. Local organizations <br />sponsoring the york plan requested that the channel improvement <br /> <br />16 <br />