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Show Strawberry Aqueduct, portions of which have been completed or are presently under construction, would intercept the flows of nine streams tributary to the Duchesne or Strawberry Rivers and convey the water to the enlarged Strawberry Reservoir. The aqueduct would head at Upper Stillwater Reservoir on Rock Creek. Water would flow by gravity through the aqueduct for about 37 miles in a southwesterly direction, intercepting the flows of Rock Creek, South Fork of Rock Creek, Hades Creek, Twin Creek, Wolf Creek, West Fork of the Duchesne River, Currant Creek, Layout Creek, and Water Hollow Creek. The enlarged Strawberry Reservoir would store this water for diversion to the Bonneville Basin. Soldier Creek Dam, about 7 miles downstream from the existing Strawberry Dam, would raise the present Strawberry Reservoir normal water surface elevation by about 45 feet. Figure A- 6 is a schematic presentation of the water distribution of the Uinta Basin streams affected by the Strawberry Aqueduct and Collection System under the proposed plan. Additional streamflow data related to aquatic habitat are given in Section C. The Strawberry Aqueduct would consist entirely of tunnel or pipe sections. Tunnel alinements and portal locations would be selected to minimize hazards and to avoid unstable slope conditions. Subsurface exploration and investigations would be undertaken so that geological conditions would be known and portal sites would be selected with the least potential for foundation hazards. The size and capacity of the aqueduct would increase as each stream was diverted into it. It would begin with a tunnel having a diameter of about 9 feet and a capacity of 285 second- feet and end with a 620- second- foot capacity open- channel section. There are no roads or trails along the aqueduct line. However, the tunnel portals and the conduit and siphon locations are presently reached by short trails from existing mountain access roads extending from paved U. S. Highway 40 and Utah State Highway 134, and from partially paved or graded Utah State Highway 35. Roads related to the Strawberry Aqueduct and Collection System are shown in ' Figure A- 7. Suitable potable water supplies for recreational use would be developed at the reservoirs from nearby springs or streams, or wells which could be drilled. Sewage treatment would be by lagoon method where suitable topography was available, or sewage would be pumped into tank trucks for hauling to municipalities where treatment facilities exist. Solid waste or garbage would be collected at regular intervals and taken for burial to the nearest sanitary landfill. 39 |
