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<br />No special studies were made of canal and <br />lateral consolidation, but two studies by <br />Colorado State University were reviewed and <br />are summarized in the last section of this <br />part. <br /> <br />Potential Storage <br /> <br />The investigations considered nine potential <br />storage sites; six in the foothills and three on <br />the plains, In addition, consideration was <br />given to the enlargement of the existing <br />Carter Lake and Horsetooth Reservoirs of <br />the C-BT Project. The location of the storage <br />sites is shown on exhibit IV-4, Exhibit IV-5 <br />shows their storage capabilities, <br /> <br />Foothills Storage Sites <br /> <br />The six dam and reservoir sites along the <br />foothills could provide the opportunity to <br />capture and regulate the remaining flows <br />originating in the higher watersheds of the <br />Cache la Poudre River, Little Thompson <br />River, St. Vrain Creek, Boulder Creek, and <br />Left-hand Creek, The direct beneficiaries of <br />any new water supplies which might be <br />developed from these sites would be <br />irrigators and municipalities in the adjacent <br />Front Range plains area. <br /> <br />As mentioned earlier, coordinated operation <br />studies were conducted whereby these <br />reservoirs could be interconnected with a <br />Front Range aqueduct system. The <br />interconnection of these foothills reservoirs <br />could save water and make possible the <br />delivery of surplus water to any place within <br />the study area. Water from the foothills <br />reservoirs could also be transported to the <br />plains reservoirs for reregulation and later <br />delivery. <br /> <br />Little Tom Dam site is located in Larimer and <br />Boulder Counties on the Little Thompson <br />River 4 airline miles northeast of Lyons. An <br />earthfill dam was considered for this <br />location. <br /> <br />Geer Canyon Dam site is located in Boulder <br /> <br />County on Left.hand Creek 6-3/4 airline <br />miles southwest of Lyons. A zoned earthfill <br />dam is recommended for this site. <br /> <br /> <br />Coffintop Dam site is located in Boulder <br />County on the south St. Vrain Creek 1.4 <br />airline miles southwest of Lyons. A slab and <br />buttress or multiple-arch dam i,s <br />recommended for this site. <br /> <br />Orodell Dam site is located in Boulder <br />County on Boulder Creek 2 airline miles west <br />of Boulder. A double-curvature <br />concrete-arch dam was studied for this site. <br /> <br />Grey Mountain Dam site is located in Larimer <br />County on the Cache la Poudre River 11 <br />airline miles northwest of Fort Collins. A thin <br />double-curvature concrete-arch dam was <br />studied for this site. <br /> <br />Devil's Backbone Dam site is located in <br />Larimer County on Buckhorn Creek about 6 <br />airline miles northwest of Loveland. An earth <br />or rockfill structure was studied for this site. <br /> <br />Plains Storage Sites <br /> <br />The three plains reservoir concepts studied <br />were the Cactus Hill, Coal Creek, and Erie <br />Dam sites. <br /> <br />Cactus Hill Dam site is located northeast of <br />Fort Collins. An earth dam, up to 150 feet <br />high, could be located in this area on Black <br />Hollow Creek. This structure could serve <br />primarily as a reregulating reservoir and <br />could benefit existing irrigated lands in the <br />Windsor and Eaton areas of Weld County. <br /> <br />An earth or rockfill structure could be <br />located on Coal Creek in Boulder County 7 <br />airline miles southeast of Boulder. This <br />reservoir could capture and regulate surplus <br />flows from the Coal Creek and adjacent <br />watersheds and could provide M&I water <br />supplies for the growing communities of <br />Superior, Louisville, Lafayette, and Erie. In <br />addition, this site could provide terminal <br />storage for surplus water which might be <br /> <br />IV-6 <br />