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As a result of sediment deposition and the resulting backwater effects, there would be encroachment upon U.S. Highway 89 in the Paria River Valley. Based on maintaining the standards and approximate length of the existing highway, the relocation would be about 10.7 miles in length, including a 1,000-foot tunnel through Cockscomb Ridge. Construction materials--A reconnaissance investigation indicated that suitable construction materials are not abundant locally. The best source of concrete aggregate appears to be the deposit on Wahweep Creek, which was developed and used for the construction of Glen Canyon Dam. The haul distance would be about 23 miles. Material suitable for road and highway construction may be available where the highway relocation crosses the Paria River. Community facilities--Housing would not be provided for Federal employees at the damsite. Owing to the short 2-year construction period and the costs involved in providing utilities and educational facilities at the damsite, it would be more economical to provide transporation from Page for the employees. Page, which is located near Glen Canyon Dam, 33 miles southeasterly via U.S. Highway 89, is expected to have a permanent population of about 3,500 after the departure of Glen Canyon construction employees. Only those facilities associated with on-job construction management--a material-testing laboratory and building for inspectors--would be located at Paria Dam site. General administration offices and transportation facilities would be located in existing buildings in Page. 27Epson Perfection 4870 Photo, 400 dpi, 8 bit, 14,262,272 byte