Laserfiche WebLink
<br />o <br /><::,) <br />l) <br />(.j) <br /> <br />\..~ : <br /> <br />WATER YIELD OF GREEN MOUNTAIN RESERVOIR: Releases from Green Mountain <br /> <br /> <br />Reservoir are required for out-of-priority CST Project diversions, to supplement natural flows <br /> <br /> <br />thereby meeting in-basin irrIgation and municipal demands, and for water sales. These release <br /> <br />requirements were estimated to range from 20,000 to 118,000 aflyr depending on hydrologic <br /> <br />conditions In a given year. If the release requirements are assumed to be constant from year to year, <br /> <br />the reservoir has a firm-yield capability of 144,000 af/yr. If 52,000 af were reserved as a CBT <br /> <br /> <br />replacement pool, then 92,000 af/yr would be available as firm yield from the remaining power pool. <br /> <br />-.J <br /> <br />RESERVOIRS <br /> <br />Design features of each of six reservoirs considered for this study are described below. <br /> <br />Descriptive and dimensional data are provided in Table S.2. Information from the following studies <br /> <br /> <br />was drawn upon in the design and analyses: "Wolford Mountain Reservoir Project, Feasibility Study", <br /> <br /> <br />(Western, 1983); "Report on the Feasibility Investigations, Rock Creek Dam Project", (Morrison- <br /> <br /> <br />Knudsen Engineers, 1986); "Preliminary Report of Geotechnical Investigation of Wolford Mountain <br /> <br /> <br />Site A', Red Mountain Site and the Conveyance System Route", (Chen, 1986); "Azure Project, Definite <br /> <br /> <br />Project Report", (IECO, 1983); "Eagle-Piney/Eagle-Colorado Water Study", (Parsons, et al., 1974); and <br /> <br /> <br />"Una Reservoir Project", (Beck and Associates, 1982). <br /> <br />,~. <br /> <br />WOLFORD MOUNTAIN SITE A' DAM AND RESERVOIR: Wolford Mountain Site A' is located <br />1.5 miles north of Kremmling and is one of two sites on Muddy Creek. Alternative Site C Is located <br />3.8 miles further upstream. <br /> <br />Site A' Dam would be constructed across a 500-foot wide valley eroded into sandstone and <br />claystone shale. Based on the foundation conditions and the materials potentially available at the <br />site for dam construction, a modified homogeneous earthfill dam design has been selected. A <br />concrete-lined ungated overflow spillway would be located on the left abutment. <br /> <br />Increased Yield With Colorado River Diversion: The yield of Wolford Mountain A' Reservoir <br /> <br />on Muddy Creek can be supplemented by pumping from the Colorado River. The pipeline route to <br /> <br />the reservoir Is 20,600 feet long Including 5700 feet of tunnel. Pumps would be capable of reverse <br /> <br />flow for power generation from reservoir releases. Power revenues could offset about 20 percent of <br /> <br /> <br />the pumping costs. <br /> <br />" ,~ <br /> <br />8 <br /> <br />',J <br />