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<br /> <br />U.S. Department of Agriculture, Soil Conservation <br />Service <br />Erke King <br />Al Elkins <br /> <br />u.S. Department of Interior, Geological Survey <br /> <br />Colorado State Department of Highways <br /> <br />Arix Engineers <br /> <br />Grand Junction Daily Sentinel Newspaper <br />Grand Valley Project, Highline Canal Division <br /> <br />u.S. Bureau of Reclamation, Grand Junction Office <br /> <br />u.S. Department of Commerce, National Weather <br />Service <br /> <br />2.0 STUDY AREA <br /> <br />2.1 Basin Location and Description <br /> <br />The City of Grand Junction is located in central Mesa <br />County in extrcme west ccntral Colorado. Grand Junction <br />lies at the conflucnce of the Colorado and Gunnison <br />River s about 25 mi I es eas t of the Utah bor der. The <br />location is shown on the Vicinity Map (Figure 1). <br /> <br />This report includes a detailed hydrologic analysis of <br />Indian Wash within the corporate limits of the City of <br />Grand Junction. <br /> <br />Indian Wash originates at the foot of the Book Cliffs at <br />approximately 5800 feet above sea level and flows <br />approximately 5.5 miles in a southwesterly direction to <br />an arca just northeast of Walker Field "here the Soil <br />Conservation Service 1\\'-1 flood detention structure is <br />locatcd. Indian Wash flows southeasterly from the dam to <br />the east of the ai rport and passes under Intcrstate <br />Highway 70 in a doublc box culvert. From this location, <br />Indian Wash flows southwcsterly, passing under the <br />Highline Canal, Patterson Road and the Grand Valley Canal <br />until at Orchard Strcet the wash makes a 90-dcgree turn <br />to thc wcst and flOl"s \-:estcrly parallel to Orchard <br />Street. At 28th Road, Indian Wash makes a gO-degrec turn <br />to the south and flows southerly through the City of <br />Grand Junction to its confluence with the Colorado River. <br /> <br />2 <br />