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<br />0.16 <br /> <br />. <br /> <br />Data point <br />Dense brush on stream banks <br />increases Manning's rough- <br />ness coefficient <br /> <br />0.14 <br /> <br /> 0.12 Cottonwood Creek <br /> (Site 31 <br />>- <br />z <br />w <br />U <br />u: <br />w <br />w <br />0 0.10 <br />u <br />'" <br />'" <br />w <br />Z <br />:I: <br />'" I <br />=> \ <br />0 <br />'" \ <br />'" O.OB <br /><0 \ \ <br />z <br />z \ <br />z \ <br /><( \ <br />'" <br /> 0.06 \ <br /> Tmot e,,,.\ "- /'''' <br /> "- <br /> ....... ......- /' <br /> (Site 171 \ / 'r-..-" <br /> 0.04 South Fork Rio Grande <br /> (Site 16) <br /> '-...J <br /> <br /> <br />0.02 <br />o <br /> <br />2 3 <br />HYDRAULIC RADIUS, IN FEET <br /> <br />4 <br /> <br />5 <br /> <br />I . <br /> <br />Figure 11.--Effect of streambank vegetation on the relation <br />between Manning's roughness coefficient and hydraulic <br />radius. <br /> <br />33 <br />