OCR Text |
Show recreational facilities at Strawberry, Currant Creek, and Upper Stillwater Reservoirs and at some of the 15 existing small lake- reservoirs at the head of Provo River. Most of the water conservation function of these small reservoirs would be transferred to Jordanelle Reservoir, thus permitting the small reservoirs to be maintained at nearly constant water elevations for fish and recreation. One of these small reservoirs would continue to serve as an irrigation reservoir and would be subjected to annual drawdown. Dams at all 15 reservoirs need some rehabilitation. Fishery opportunities would be provided or improved at all of the reservoirs mentioned, and stream fisheries of sections of the Provo River, the Spanish Fork River, and Sixth Water Creek would be improved. However, Uinta Basin streams intercepted by the Strawberry Aqueduct would be reduced. Minimum flows of 15 c. f. s. in Sixth Water Creek below Sixth Water Dam, 75 c. f. s. of the Spanish Fork River from Diamond Fork to the Highline Canal diversion, 50 c. f. s. between Jordanelle Reservoir and Deer Creek Reservoir, and 60 c. f. s. in Provo River between Deer Creek and Olmsted Diversion Dam would be maintained for fish. About 6,500 acre- feet of water would be available annually at Upper Stillwater Reservoir for bypass or release from Strawberry Aqueduct diversion points for stream fisheries. This storage water would not include spills during the spring runoff and releases for irrigation and other downstream requirements during the summer months. Minimum flows of Uinta Basin streams and the Provo River are discussed in greater detail in Section C. The Bureau of Sport Fisheries and Wildlife has proposed plans and cost estimates for a waterfowl management area at Goshen Bay and big game management areas near Strawberry and Starvation Reservoirs and along the Duchesne River. Flood Control Flood control benefits would be provided by the Hobble Creek Diversion Dam; by Beer Creek, Provo, and Goshen Bay Dikes; and by Jordanelle, Hayes, Lampton, and Starvation Reservoirs. The Corps of Engineers has prepared estimates of flood- control benefits for all reservoirs except Lampton, which would be evaluated in the future. Benefits were estimated on the basis of joint use of conservation storage in the reservoirs in accordance with runoff forecasts. 109 |