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Barker Reservoir, with a capacity of <br />approximately 11,700 acre-feet and a surface <br />area of about 200 acres, was constructed in 1908 <br />by the Colorado Power Company as part of the <br />Boulder Canyon Hydroelectric Plant. Ownership <br />of the Reservoir and hydroelectric generating <br />system was later transferred to Public Service <br />Company of Colorado (PSCo). Area vs. <br />capacity information for Barker Reservoir is <br />shown in Table 1. Dead storage in Barker <br />Reservoir is 80 acre-feet. The drainage area <br />above Barker Reservoir is approximately 36 <br />square miles. Natural drainage above Barker <br />Reservoir has been estimated to be 40,000 acre- <br />feetper year (WBLA, 1988). <br />Barker Dam consists of a 175 foot high concrete gravity <br />structure with a crest length of 720 feet. The dam has two 36-inch diameter flood gates that <br />discharge down the spillway into Middle Boulder Creek. The outlet includes ten gates on the <br />upstream face of the dam that discharge into a vertical, stair-step shaft that can release water to <br />Boulder Creek and to the Barker Gravity Pipeline. The spillway of the dam was designed to carry <br />1,000 cfs. The dam also has a "farmer's gate" that is used to bypass flows into Boulder Creek for <br />delivery to downstream senior water rights. <br />City of Boulder Memo.Doc Page 10 of 30 March 9, 2005 <br />Barker Meadow Reservoir <br />Construction of Barker Meadow Dam <br />