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<br />West Fork Sycamore Creek near Sunflower <br /> <br />Reach location: <br /> <br />Latitude 33057'20", longitude 111029'25". Reach begins about 350 ft downstream <br />from streamflow-gaging station 09510120, West Fork Sycamore Creek near <br />Sunflower (Aldridge and Garrett, 1973). <br /> <br />8.6 mi2. <br /> <br />Drainal!e area: <br /> <br />Bed-material size: <br /> <br />See channel description. <br /> <br />The channel is fairly uniform throughout the study reach. The channel bottom <br />consists mostly of pebble to boulder-size clasts. No grain-size analysis is available. <br />A few trees are near the channel margins (figs. BC-E). The stream is intermittent, <br />and flow is unregulated. <br /> <br />The trees probably had a slight effect on total flow resistance. Discharge was <br />obtained from a well-defined stage-discharge relation. High-water indicators were <br />plentiful and were rated good to excellent (E.E. Denis, hydrologist, U.S. Geological <br />Survey, written commun., 1963). <br /> <br />Table 19. Flow data and computed roughness coefficient, West Fork Sycamore Creek near Sunflower <br /> <br />Channel descriution: <br /> <br />Remarks: <br /> <br />Date of flow <br /> <br />Discharge, in cubic feet per second <br /> <br />Roughness coefficient <br /> <br />02- 11-63 <br /> <br />117 <br /> <br />0.067 <br /> <br />Rating <br />Good <br /> <br />Table 20. Average-reach properties, West Fork Sycamore Creek near Sunflower <br /> <br />Area, in Top width, Hydraulic Mean velocity, in <br />Date square feet in feet radius, in feet feet per second <br /> <br />Froude Total length, Total fall, Water-surface <br />number in feet in feet slope <br /> <br />02-11-63 36.2 29.4 1.21 3.29 <br /> <br />0.53 108 1.96 0.0181 <br /> <br /> 16 <br /> 15 <br />f- <br />w 14 <br />w <br />u.. <br />~ <br />Z 13 <br />0 <br />~ <br />> <br />w 12 <br />--' <br />w <br /> 11 <br /> <br /> <br />o <br /> <br />5 <br /> <br />10 <br /> <br />15 <br /> <br />20 <br /> <br />25 <br /> <br />30 <br /> <br />35 <br /> <br />40 <br /> <br />45 <br /> <br />STATIONING FROM LEFT BANK, IN FEET <br /> <br />Figure 13A. Cross-section 2, West Fork Sycamore Creek near Sunflower. <br /> <br />52 Verification of Roughness Coefficients for Selected Natural and Constructed Stream Channels in Arizona <br />