OCR Text |
Show Goshen Bay Dike Several locations for the Goshen Bay Dike are available ( Fig. H- 22). These include one parallel to the presently proposed dike, but about a mile south of it; one extending from Lincoln Point northward about 2 miles to Bird Island and thence northwesterly to the western shore of the lake; and several sites in between. The impact on the environment from dike construction, borrow areas, and bay operation would be essentially identical for all dike locations. The only different impact would be in connection with the dike to Bird Island, which would eliminate a very important nesting area. For the other sites, the construction cost would need to be balanced against the amount of water saved, the volume of storage space remaining in the lake, and volume of poor quality water eliminated from the lake for each site. Several borrow areas are located near the end of the dike. The combined total material available in the borrow areas is ^ 2,000,000 cubic yards, with the dike requiring about 7> 800,000 cubic yards. There is considerable latitude as to the amount of material that could be obtained from each borrow area, and it may be possible to shape the borrow areas and develop them into environmentally desirable recreation areas. Lampton Reservoir Alternatives An alternative to the 48,000- acre- foot Lampton Reservoir, with major emphasis on the recreation aspects rather than water for heavy industrial use, is now being studied by a private engineering firm under a contract with Salt Lake County. The engineering report-*-^ on this proposal, with an accompanying environmental impact statement, has been prepared for the Salt Lake County Development Board. Table H- 12 from the report summarizes the features that would be inundated by the proposed development. This alternative plan would consist of two smaller dams and reservoirs with about the same total capacity as the single Lampton Reservoir. One dam. would be built at the Lampton site and the other at an upstream Riverton site. The reservoirs would be operated for flood control each, spring, but stable water surfaces would then be maintained as 619 |