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Show The proposed outlet portal site is reached by the existing road along Currant Creek from Highway 40. This is an improved, gravel- surfaced road to the mouth of Layout Canyon. Future work would include road improvement from Layout Creek to the vicinity of the Currant Creek Dam and relocation around Currant Creek Reservoir. The portal is about 11/ 2 miles upstream from Currant Creek Damsite. Moon Lake Electric Association has constructed a 14.4/ 24.9 kv, 3- phase, 60- cycle transmission line to Currant Creek Damsite, with branches in Water Hollow and Layout Creeks to the proposed Strawberry Aqueduct locations. An approximate 2- mile extension would be required to serve the outlet portal of Vat Tunnel. Extension of the proposed powerline about 4 miles from the outlet of Rhodes Tunnel would make power available at Vat Tunnel inlet. The route would generally follow the West Fork Pipeline alinement. Riprap for structures associated with Vat Tunnel could be obtained from the back slope of the eastside access road below Soldier Creek Dam. Possible use of materials from Currant Creek Dam borrow areas for Vat Tunnel and the Vat Tunnel access road would require coordination with uses for construction of Currant Creek Dam and the filling of Currant Creek Reservoir. Other possible sources are being tested, but none have proven adequate so far. At the inlet portal, the Forest Service road traverses the north side of the West Fork of the Duchesne River. Materials excavated from the inlet portal would be placed along the river between the river and the road. At the outlet portal, waste material from the excavation of the tunnel would be placed in Currant Creek Reservoir at a level which would be below minimum water level. ( 14) Currant Creek Reservoir Currant Creek Reservoir would form an open water connection between the Vat Tunnel and Currant Creek pipeline portion of the Strawberry Aqueduct. It would divert water from Currant Creek and five of its smaller tributary streams into the aqueduct. Currant Creek Reservoir would have an inactive capacity of 14,500 acre- feet and an active capacity of only 1,000 acre- feet. The upper 1,000 acre- feet would fill and empty every year, and the water surface would fluctuate only about 4 feet. Currant Creek Dam would be a rolled earthfill structure. The Currant Creek Reservoir site is entirely within the boundaries of the Uinta National Forest. An 52 |