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z.oa.7(z) <br />channel and 2-3 feet per second in overbank areas. Water flowing <br />• at 10 feet per second will cause severe erosion of channels, destroy <br />low water crossings, and transport large boulders. Streambanks <br />and the fill around bridge abutments may be eroded, and large <br />amounts of sediment transported by water flowing at 5-7 feet <br />per second. Water flowing at about 2 feet per second will deposit <br />sand, silt, and flood borne debris. <br />Additional cross sections to the east of the Corps of Engineers <br />study were provided by ARCO. These cross-sections depict the <br />North Fork of the Gunnison River in the area of the Bear t3ine. <br />These cross-sections can be found on Drawings 2.04.7(2)(b)(i)-2a <br />through 2.04.7(2)(b)(i)-15. <br />n <br />U <br />• <br />5-57 <br />REVISED tday 15, 1981 <br />