Laserfiche WebLink
<br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br /> <br />4.2 <br /> <br />WATER RIGHTS <br /> <br />The Ctty of Greeley obtains tts water from a number of sources. The major sources include <br />the Colorado-Big Thompson Project, direct diversion from the Cache la Poudre River, the Windy <br />Gap Project, several irrigation and dtteh companies, and the high mountain reservoirs in the <br />Cache la Poudre River watershed. The Cache Ia Poudre reservoirs include Bames Meadow, <br />Comanche, Hourglass, Peterson lake, Seaman, and Twin lakes. <br /> <br />The water rights for Hourglass Reservoir are shown on Table 4.4. The combined decreed <br />storage capacity is 1693 acre-feet. The reservoir currently operates under reslricted conditions, <br /> <br />Hourglass Reservoir Is currently restriC1ed to elevation 9363 (31 gage). for a capacity of 1,434 <br />acre-feet. The City's currenl operation of the dam Iimtts operation at maximum elevation 9362 <br />(30 gage) to a period of 30 to 60 days, and at elevation 9361 (29 gage) for more than 60 days. <br />The elevation 9362 (30 gage) IImtt reduces lhe reservoir storage to 1,366 acre-feel and the <br />elevation 9361 (29 gage) to 1,300 acre-feet. These gage heighl restrictions are necessary to <br />prevent detrimental saluralion of the downstream toe of the dam and undesirable ponding <br />immedialely below the dam between Stations 114+00 10 117+00. <br /> <br />Current reslrlctlons followed a series of restrictions inttlated shortly after the rehabilitallon work <br />done In 1966, Signlficanl damage to the left groin area of the dam occurred in August 1985 <br />when runoff from a severe storm ran from the left abutmenl into the dam In the left groin area. <br />The resulting deep gully was promptly filled with readily available malerial. <br /> <br />The Cache la Poudre River Water Commissioner administers the operation of all of Greeley's <br />high mounlaln reservoirs. The high mountain reservoirs, like other high mountain reservoirs are <br />allowed to fill to Iheir Iimtt. Water is then released to meel downstream uses. All downstream <br />diversion points are near the mouth of the canyon. Water storage in high mountain reservoirs <br />reduces overall evaporation losses and increases operating flexibility thereby benefiting <br />downslream waler users. <br /> <br />4-5 <br />