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direction. Although the Little Barnes Ditch is still used to deliver a small amount of irrigation <br />water, it is now used primarily for urban drainage collection purposes. <br />Length: Approximately 4 miles to Lake Loveland <br />Capacity: The capacity of the Big Barnes Ditch is 700 cubic feet per second (cfs) <br />Measurement Device: Diversions through the Barnes Ditch are measured via a 20-foot, <br />concrete Parshall flume with a Stevens recorder located about 400 feet down ditch. These <br />records reflect the storage diversions for the GLIC system. <br />HydroBase Data: The monthly data available in HydroBase over the 1950-2002 period of <br />record pertaining to the Barnes Ditch includes the following: <br />Total Diversions <br />• Complete record over 1950-2002 (see Figure 2) <br />• Historic diversion average approximately 35,000 ac-ft/yr <br />• 1990-2002 average diversion approximately 30,000 ac-ft/yr <br />30,000 <br />25,000 <br />20,000 <br />a <br />0 <br />L <br />7 <br />A 15,000 <br />'s <br />a <br />0 <br />10,000 <br />5,000 <br />0 <br />~ ti M h ~ <br />~oa~` ~oa~' ~oa~' ~oa~' ~oa~' ~oa~' <br />oa' oa' oa' oa' oa' oa' oa' oa' oa' oa' oa' oa' oa' oa' oa' oa' oa oa oa oa' oa <br />~ <br />Date <br />Figure 2: Barnes Ditch Diversion Records <br />Greeley Loveland Irrigation Company Operating Memorandum.doc 5 of 18 January 5, 2005 <br />