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<br /> 1.00 <br /> 0.95 <br /> 0.90 <br /> 0.85 <br /> 0.80 <br /> 0.75 <br /> 0.70 <br /> 0.65 <br /> 0.60 <br />Yo <br />0 0.55 <br /> 0.50 <br /> 0.45 <br /> 0.40 <br /> 0.35 <br /> 0.30 <br /> 0.25 <br /> 0.20 <br /> 0.15 <br /> 0.10 <br /> 0.05 <br /> <br /> 8.2., , / I J <br /> - / <br /> V t y I <br /> 7.0 ~ / . <br />~. j j / <br /> 6.0 -... -" " / / <br /> -- -- ..- I <br />~ 3 5.0 ~~ / <br />G/SD /2 / <br />~ <br /> ~ <br /> 4.0 I( <br /> I ~ <br /> 3.5 ft <br /> 3.0 ---" <br /> 2.5 - ~ <br /> 2.0 ~ I( TW <br /> 1.5 JI ]~"".. -=:? <br /> "I <br /> 1.0 J D T <br /> 0 . <br />... 1/ --L <br /> ~ . <br />0.5 ~ I I I I <br /> 7 Yo = brink depth - <br /> G/SD 3/2 = 0.0 o = height of box cul'llert <br /> - - B ::: width of barrel - <br />) Q = discharge <br />1/ - <br /> TW = tail water depth <br /> . . . , <br /> <br />e <br /> <br />: <br /> <br />e <br /> <br />. <br /> <br />. <br /> <br />o <br />o 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0 <br /> <br />TW/D <br /> <br />Figure 111.9 Dimensionless Rating Curves for the Outlets <br />of Rectangulars Culverts on Horizontal and Mild <br />Slopes from Reference 111.2 <br /> <br />III-14 <br /> <br />e <br />