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uo�uo�ao ict vo:oa r:�.� <br />�, ;: i� �, � Hickman, Williams & Associates, lnc. <br />�; � i ��i � Surveyors • Engineers � Planners <br />'r Manning's Formula Solution For Open Channel Flow <br />L J <br />Project Name: <br />Project Number: <br />Date: <br />Drainage: . <br />l�esign Flows ( cfs ): <br />Storm Frequencies ( yes�)� <br />Les Sch�vab-EveretC <br />951207 <br />22-Feb <br />A South) Sc.�Q�� <br />0,82 1.19 1.67 <br />2 10 50 <br />Swale I.ength: 150 feet <br />Fall: 0.6 feat <br />Typc of Swale: Grassed Trapezoidal <br />Aottom Width: 5 feet <br />Side Slopc: ( x ta 1) 3 <br />Roughness Coe[ficient ( n ): 0•2 <br />Design Slope: <br />0.0040 feetJfcet <br />� <br />V4etted Wetted Hydraulic Flow Velocity Time <br />Dcpth Pcrimctcr Area Radius (cfs) (fps) (min) <br />0,1 <br />0.15 <br />0.2 <br />0.25 <br />0.3 <br />0.35 <br />0.4 <br />0.45 <br />0.5 <br />0.55 <br />0.6 <br />5.63 <br />5.95 <br />6.26 <br />6.58 <br />6.90 <br />7,21 <br />7.53 <br />7.85 <br />8.16 <br />8.48 <br />8:79 <br />0.53 <br />0.82 <br />1.12 <br />1.44 <br />1.77 <br />^,.12 <br />2.48 <br />2.86 <br />3.25 <br />3.66 <br />4.08 <br />0.094 <br />0.137 <br />0.179 <br />0.218 <br />0.257 <br />0.294 <br />0.329 <br />0.3u4 <br />0.398 <br />0.431 <br />0.464 <br />o.os <br />0.10 <br />0.17 <br />0.25 <br />0.34 <br />U.44 <br />0.56 <br />0.69 <br />0.83 <br />0.98 <br />1.15 <br />o.io <br />6.13 <br />0.15 <br />0.17 <br />0.19 <br />0.21 <br />0.22 <br />0.24 <br />0.25 <br />0.27 <br />0.28 <br />zsa <br />19.9 <br />16.7 <br />14.6 <br />J,3.J. <br />12.0 <br />ll.i <br />10.4 <br />9.8 YR. <br />9.3 <br />8.9 ' ��^ <br />H�stcneal Ml11 A 8uilding � 805 SW IndusMel ',Wey, Suite 10 � Bend Oregon 97702-7093 �(541J 3B8•9351 � Fi4X (Sa1) 38B-SA1B <br />