OCR Text |
Show for development of a rapid and extensive vegetative cover. The degree of restoration success would depend largely upon the availability of local topsoil which would be stockpiled prior to dsposition of spoil material. Topsoil is not abundant in some areas and rapid revegetation would not occur. Along the Aqueduct, a considerable . amount of waste material would be incorporated into construction embankments or deposited in the basins of Currant Creek and Upper Stillwater Reservoirs below the planned maximum drawdown levels. Adverse visual impacts in level areas would not be severe. Utah Lake Diking The proposed diking of Utah Lake would nave tremendous esthetic impacts particularly on the sides of the dikes to be drained. The visual character of the natural landscape would be severely altered by the appearance of 12.6 miles of dike and the drainage of about 35,000 acres of lake area. Associated with the diking would be esthetic disruptions resulting from the excavation of borrow areas to obtain embankment material and riprap. There would also be considerable temporary visual degradation of the lake during construction of the dikes. The esthetic impacts of draining Provo and Goshen Bay3 would largely involve vegetative changes. Provo Bay would be cultivated into cropland. Goshen Bay is expected to develop after about 4- to 5- years into a saline marsh containing a very shallow ( less than 2 feet) pond that would dry up during the summers of most years. The size of pool ( maximum area about 7,000 acres) would vary considerably depending upon prevailing hydrological conditions. The existing shoreline vegetation community of tamarack, salt grass, greasewood and rabbit brush would gradually invade the newly created mud flats. The natural succession of plants, if unaided, would take many years to accomplish. The creation of a sizable body of shallow water having a fluctuating shoreline could develop into ideal habitat for production of mosquitoes and |