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lower reaches and conifer forests mixed with grass in the upper reaches. The channel is generally rough with many cobbles. The principal damage from flooding would be to some ranches and scattered cabins. The tributaries to the Fryingpan River-Taylor Creek, Downey Creek, Seven Castles Creek, Otto Creek, and Frenchman Creek-are all approximately 0.5 mile long. They all have steep, narrow channels approximately 2 feet deep and a slope of approximately 120 feet per mile. The floodplains are approximately 10 feet to 50 feet wide, and virtually no development has occurred in the floodplains. The exception is Taylor Creek, which has a floodplain width of 40 feet to 100 feet and a few residential dwellings in the floodplain. The vegetation along all these tributaries is similar to that of the Fryingpan River. Brush Creek flows north tq northwest from the mountains of the northern Sawatch Range into the Eagle River near the western end of the Town of Eagle. At Eagle, it has a steep, shallow channel with a slope of approximately 90 feet per mile. The width of the channel is approximately 30 feet, and its depth is approximately 1 foot to 2 feet. The streambed is steep and narrow downstream of the Denver and Rio Grande Western Railroad, with a width of approximately 70 feet; in the upper reaches, it ranges in width from approxmiately 200 feet to 400 feet. The floodplain is generally covered with natural grasses, willow bushes, and cottonwood trees. A trailer park and several other dwellings are in the floodplain in the area of study near the Town of Eagle. The Roaring Fork River originates in the Sawatch Range at an elevation above 14,000 feet, travels approximately 37 miles to the Town of Basalt, and flows along the west side of the town. At the confluence of the Roaring Fork and Fryingpan Rivers, 53 percent of the total drainage of the Fryingpan and Roaring Fork River basins collect. The Roaring Fork River restudy was prepared for 9.6 river miles, beginning at the GarfieldlEagle County boundary and continuing upstream through Eagle County, the Town of Basalt, and Pitkin County to the confluence with Snowmass Creek. The Roaring Fork River is a major tributary to the Colorado River. The headwaters of the Roaring Fork River emerge above the City of Aspen and continue approximately 60 miles downstream to the confluence with the Colorado River at the City of Glenwood Springs. At the confluence, the Roaring Fork River has a 1,460-sq.-mi. drainage basin. Major tributaries to the Roaring Fork River are the Crystal River, the Fryingpan River, Maroon Creek, Castle Creek, and Hunter Creek. The Roaring Fork River bank-full channel in the study area is approximately 90 feet to 120 feet wide as it flows through an alluvial valley. The average channel grade is 0.0127 foot per foot upstream of the Town of Basalt, transitioning to 0.0087 foot per foot west of the town. The lower study reach has an average grade of approximately 0.007 foot per foot. The stream channel is braided, with a bed composed mostly of gravel, cobbles, and small round boulders ranging from 6.inches to IS inches in diameter. There are many riffles, rapids, and shallow pools along its course. Several irrigation ditches divert from the Roaring Fork along this reach. In most areas, the riverbanks are low with steep slopes (often over 45 degrees), and are composed mostly of sand, gravel, and cobbles, with little or no vegetation below the mean annual 10