| OCR Text |
Show of the area by man. The esthestics of the area have already been altered by construction of the Soldier Creek Dam and attendant features. The filling of the reservoir is not expected to further degrade the existing scenery but instead would likely improve the overall situation, particularly when the old and the new sections are made contiguous. The average 6^ to 8- foot annual drawdowns that would occur would not be expected to create significant problems of unpleasant odors and esthestics because the exposed shoreline in some areas would be unattractive. The attractive high mountain setting of the area, the long- term drawdown and filling cycle of the large water surface, and the variable shoreline terrain are assets to this feature of the Bonneville Unit. Under Unit conditions, there would be a greater water outflow than inflow to accommodate winter power production. This could present unsafe ice conditions at certain locations around the reservoir.°" ( 2) Diversion Structures and Feeder Pipelines The diversion structures and feeder pipelines would remove water from seven Uinta Basin streams and convey it into the Strawberry Aqueduct System ( See Figure A- 5). A list of these features and the physical data pertaining to them is presented in Table A- 5. In general the construction and particularly the operation of these structures would adversely influence the environment primarily by reducing stream flows below the structures. These streamflow losses would be expected to totally destroy the fish habitat in the sections of stream immediately below the diversions and reduce it for a significant distance downstream. The reduction in stream flows would also be expected to adversely affect the recreational boating potential on about 10 miles of the West Fork of the Duchesne River. In addition, the potential for this sport would be reduced on about 130 miles of the Duchesne River by the curtailment of tributary inflow. iOH' Seepages past structures, springs, bypasses, and tributary and groundwater inflows would be expected to provide downstream water sufficient to retain some of the existing aquatic characteristics. In streams where the dewatered sections extend for several miles, accretion flows would be expected to be large enough to support a reduced population of fish. About 22 miles of stream would be affected by the diversion structures and feeder pipelines. Of this amount, about 15 miles are classified as Class III and 5 miles are classified as Class IV. The remaining 2 miles 231 |
