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Inspection of the Rosevale area south ol the river did not reveal any flood protection in place; however, Rosevale Road is elevated about 1.5 foot above the surrounding ground surface and provides some flood protection to the area south of it. e Previous studies. Previous studies at or near the study reach include: "section 205 Reconnaissance study for Flood Control, Colorado River, Grand Junction, Colorado," January 1989, Sacramento District, Corps of Engineers, was prepared to assess Federal interest in flood control on the Colorado River at Grand Junction in the vicinity of the Highway 50 bridge, immediately upstream of the study reach. A follow-on draft feasibility report was completed in November 1991. "Reconnaissance Report on the Colorado River Flood Problem, Grand Junction, Mesa County, Colorado," May 1979, Sacramento District, corps of Engineers, addresses three separate flood- prone areas, including the subject study reach. The potential plan had a benefit-cost ratio of l.2 to l; however, local interests stated that they could not continue participation in the study due to limited funding capability at that time. "Flood Hazard Information Report for Grand Junction, Colorado," November 1976, Sacramento District, corps of Engineers, describes flood problems in the vicinity of Grand Junction and includes delineations of the lOO- and 500-year flood plains. . Volumes land 2, "Final Environmental Impact Statement for the Remedial Actions at the Former Climax uranium Company uranium Mill site," December 1988, assesses the environmental impact of removing a uranium tailings pile located within a half mile of the study reach and also assesses the impacts of removal of other radioactively contaminated soil in the valley. The EIS covers impacts on the affected environment, including surface and subsurface features; ecosystems; land use; scenic, historical, and cultural resources; and socioeconomic characteristics. A Flood Insurance Study, based on the Corps flood hazard information report, was completed in July 1982 by the Federal Emergency Management Agency (FEMA). This report is being revised to reflect significant changes in hydrology and flood plain changes after the 1983 and 1984 floods. The preliminary report has been completed and the hydrology and flood plain data included in this study. The final report is scheduled for completion in late 1991. 4 .