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Last modified
11/23/2009 10:40:01 AM
Creation date
10/4/2006 9:58:59 PM
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Template:
Floodplain Documents
County
Statewide
Title
Guide for Selecting Roughness Coefficient n Values for Stream Channels
Date
12/1/1963
Prepared By
USDA Soil Conservation Service
Floodplain - Doc Type
Educational/Technical/Reference Information
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<br />~ <br /> <br />v <br /> <br /> Table B.2 Computations for Example 2, <br />Depth a r r 2/3 Kd1 e. r r 2/3 Kd2 ZKd at rt r 2/3 K nt <br /> 1 1 1 2 2 2 t <br />0.0 0 0,00 0,000 0 0 0,00 0,000 0 0 0 0,00 0,000 0 0,000 <br />4,7 90 3,33 2,230 7450 0 0.00 0,000 0 7450 90 3.33 2,230 298 0.040 <br />7.8 180 5,29 3.036 20250 0 0.00 0.000 0 20250 180 5,29 3.036 810 0,040 <br />9,7 240 7.06 3.680 31900 750 1.06 1.040 14500 46400 990 1.31 1.197 1760 0.038 <br />11. 7 300 8.82 4,269 47500 2238 2.88 2.024 84000 131500 2538 3,14 2,144 8090 0.062 <br />13,7 360 10.59 4.822 64400 3853 4.58 2,758 197000 261400 4213 4,82 2.854 17850 0.069 <br />16.7 450 13,22 5.591 93400 6488 7.08 3.687 444000 537400 6938 7.30 3,763 38750 0,072 <br />K _ 1.486 a, r, 2/3 = 37.15 a, r, 2/3 K = 1.486 at rt 2/3 <br />d 1. - 'O:Ol+O <br /> K <br />K _ 1.486 n =- <br /> a2 r2 2/3 = 18,58 a2 r2 2/3 t Kd <br />d2 - o:oso <br /> <br />- <br /> <br />t;g <br />, <br />i-' <br />'" <br /> <br />
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