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PHYSICAL INFORMATION <br />Skyline Ditch originates in Water Division 1 Di strict 48 and terminates in Water Division 1 <br />District 3 in Larimer County. <br />Skyline Ditch collection system consists of a headgate on the <br />right bank of the West branch of the Big Laramie River. The <br />ditch intercepts and appropriates the waters of Two and a Half <br />Mile Creek, Three Quarter Mile Creek, and other small <br />branches crossing the line of th e ditch between its headgate <br />and its terminus at Chambers Lake . Near the top of the ditch, <br />water can be diverted at vari ous locations and transported <br />down Rawah Creek for transfer through the Laramie-Poudre <br />Tunnel. <br />Construction on Skyline Ditch began in 1891. The ditch has <br />been in continuous operation since first ditch water in 1893. <br />Through an agreement with the Tunnel Water Company, <br />Skyline Ditch has frequently exchanged water for diversion <br />through the Laramie-Poudre T unnel, since 1957. The ditch <br />Skyline Ditch in the early 1900’s <br />was historically used to provide irrigation water to the Eastern <br />Slope. <br />Length: <br /> Approximately 5 miles. <br />Capacity: <br />The ditch is smallest at its headgate a nd upper end and increases in size and capacity <br />from the headgate down to its lower end at Ch ambers Lake. The capacity of the ditch at <br />the headgate is 242 cfs. At the lower end, th e total design capacity of Skyline Ditch is <br />400 cfs. <br /> <br />Diversion Measurement Device: <br />DWR WDID: 4800577 <br />USGS ID: 06746500 - Skyline Ditch at Chambers Lake Water District 48 <br />Datum: 9,185 feet above sea level NGVD29 <br />Ditch Outlet: 10 foot Parshall flume equipped with Stevens recorder. Skyline Ditch is <br />not equipped with a satellite linked monitoring system. (Parshall flume, measurement <br />recording device, and associated concrete weir housed inside a 10 foot by 10 foot wooden <br />structure constructed to pr otect system from inclement weather and vandalism) <br />Conveyance Efficiency: <br />The ditch was originally earth-lined. It is believed that Skyline Ditch <br />did not originally have the capability to divert water to the Laramie-Poudre Tunnel, <br />however there is no documented history of modifications to the ditch. <br />Skyline.doc 4 of 9 <br />