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<br />I <br /> <br />Indian Bend Wash above Curry Road <br /> <br />Reach location: <br /> <br />Draina~e area: <br />Bed-material size: <br /> <br />Channel description: <br /> <br />Remarks: <br /> <br />Latitude 33026'50", longitude 111054'55". Reach begins about 1,500 ft upstream <br />from streamflow-gaging station 09512162, Indian Bend Wash at Curry Road. <br /> <br />82.0 mi2. <br /> <br />See channel description. <br /> <br />The constructed channel is uniform and cross sections are trapezoidal in shape. The <br />channel bottom is firm earth with seasonal growth of grasses and small brush. The <br />stream is ephemeral. <br /> <br />The grass generally was laid over following the flow on October 6, 1993, and in a <br />direction parallel to flow, whereas the sparse brush appeared to be little affected by <br />the flow. Postflow conditions indicate that the flow of December 26, 1994, did not <br />significantly affect either the brush or the grass. Suspended-sediment concentration <br />was 365.4 mg/L at a discharge of about 500 ft3/s on September 28, 1995, and was <br />considered wash load. As the drainage area is mainly urbanized, this wash-load <br />condition probably is indicative of suspended-sediment concentrations for most <br />flows at this site (Fossum and Davis, 1996). <br /> <br />Table 13. Flow data and computed roughness coefficient, Indian Bend Wash above Curry Road <br /> <br />Date of flow <br /> <br />10-06-93 <br />12-26-94 <br /> <br />Discharge, in cubic feet per second <br /> <br />Roughness coefficient <br /> <br />Rating <br />Fair <br />Good <br /> <br />6,480 <br />449 <br /> <br />0.024 <br />.036 <br /> <br />Table 14. Average-reach properties, Indian Bend Wash above Curry Road <br /> Area, in Top width, Hydraulic Mean velocity, Froude Total length, Total fall, Water-surface <br />Date square feet in feet radius, in feet in feet per second number in feet in feet slope <br />10-06-93 905 167 5.36 7.16 0.54 878 1.27 0.0014 <br />12-26-94 200 132 1.52 2.25 .32 851 1.36 .0016 <br /> <br /> <br />40 Verification of Roughness Coefficients for Selected Natural and Constructed Stream Channels in Arizona <br />