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Measurement Device: <br />Croke Canal headgate diversions from Clear Creek are measured with a <br />10-foot Parshall flume. Diversions from Croke Canal into Standley Lake are measured <br />through a 20-foot Parshall flume. <br />HydroBase Data: <br />Daily data for Croke Canal are availa ble in HydroBase st arting in 1950, as <br />Figure 4 <br />summarized on a monthly basis in . Average annual total diversions through the <br />Croke Canal were approximately 13,150 ac-ft ov er the 1950 to present period. Records of <br />various diversion and release classes are av ailable in HydroBase for portions of the 1950 <br />to present period. <br />Diversions have increased through the Croke Canal over the last 20 or so years due to <br />numerous changes of other Clear Creek ditch water rights, which have been changed to <br />allow the Standley Lake Cities to divert their Clear Creek supplies through the Croke <br />Canal to Standley Lake. <br />4) Kinnear Pipeline (aka Kinnear Di tch No. 2, Structure ID 0600614) <br />The Kinnear Pipeline diverts water from Coal Creek to fill Standley Lake. The Kinnear Ditch <br />historically diverted water from Coal Creek to Woman Creek to fill Kinnear Reservoir, which <br />was the original reservoir that existed before construction of Standley Lake. The diversion was <br />changed in the 1990s to go directly from Co al Creek through Rocky Flats via pipeline. <br />9 of 24 <br />