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<br />... <br /> <br />UNITED STATES <br />DEPARTMENT OF <br />AGRICULTURE <br /> <br />NATURAL RESOURCES <br />CONSERVATION <br />SERVICE <br /> <br />325 W. Rainbow <br />Salida, Colorado <br />(719) 539-7331 <br /> <br />Riverside Ditch - Allen Extension <br /> <br />5-16-02 <br /> <br />Information for two possible projects for ditch improvement. <br /> <br />The Frenchman Creek crossing will include: approximately 20 <br />L.F. of *30 inch or *36 inch diameter 80 psi PVC pipe. <br /> <br />2 - 11% degree elbows (100 psi) <br /> <br />2 - Formed and reinforced concrete structures (Inlet and <br />Outlet) or they could be constructed using ~ inch steel <br />plate. <br /> <br />Bedding material might be required, depending on local soil <br />conditions. <br /> <br />*The pipe diameter will be determined by the amount of water <br />that needs to be delivered through the siphon. 30 inch <br />diameter pipe would flow 17.10 cfs and a 36 inch diameter <br />pipe would flow 24.78 cfs. <br /> <br />**Ditch users and contractors must understand that this <br />information is for estimating purposes only. The Natural <br />Resources Conservation Service would provide more detail <br />plans if the project is installed. <br />