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i!':l C',J f'o. ~'\1 SUMMARY SHEETS West Divide Project LOCATION West-central Colorado in the Upper Colorado River Basin. PLAN The West Divide Project plan as presented in this report is not economic- ally justified. The project is planned primarily to provide water for irrigation and municipal use. It would also provide fish and wildlife enhancement and new recreation opportunities. Water for the project would be obtained mainly by pumping from the Colorado River about 3 miles east of the town of Silt. Riverflows would be augmented by releases from the existing Green Mountain Reservoir of the Colorado-Big Thompson Project whenever necessary to meet downstream water rights senior to those of the project, especially during the late irrigation season. Water would also be obtained by diversions from West and East Divide; Dry Hollow; East, West, and Middle Mamm; Beaver; Porcu- pine; Cache; and Battlement Creeks. The primary regulatory storage for irrigation water for most of the project land would be provided by the Dry Hollow Dam and Reservoir on Dry Hollow Creek, an intermittent tributary of the Colorado River. Releases from this reservoir would also be available for exchange to provide part of the project municipal supply. Kendig Dam and Reservoir on West Divide Creek would provide irrigation water for the higher project lands and high quality municipal water. The Divide Creek Pumping Plant would pump water from the Colorado River to the Drv Hollow Feeder Canal. This canal would extend southwest to Dry Hollow Reservoir serving l.ands east of Divide Creek on its way. Two diversion dams and short inlets to the canal would pick up additional flows which would either be lifted into the reservoir through the Dry Hollow Pumping Plant Unit No. 1 or flow into the headworks of the Cache Creek Canal. The canal, receiving water from either the reservoir or the feeder canal, would extend to the ~est to convey water for irrigation and municipal use for the rural area south of Rifle, the town of Parachute, and the Battlement Mesa planned unit development. Reservoir water would also be pumped into the Hunter Mesa Canal through the Dry Hollow Pumping Plant Unit No.2 to irrigate land above the Cache Creek Canal. Kendig Reservoir would release water into the West Divide Canal, which would convey it to irrigate land above the Hunter Mesa Canal. In addi- tion, the West Divide Canal would receive water pumped from the Hunter Mesa Canal by the West Divide Pumping Plant to augment the limited supplies released from Kendig Reservoir late in the irrigation season ~I ,I