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(' . "'~'I1~.;i~:Y~:I"'";~ii!\l~fIi '''r' ,,~'!- '.0' TJ\llLE 3 HYDRAULIC ElEMENl's OF lNI'ERlOR DRAINAGE CHANNELS Ark. Back. Ark. Design Drainage Drainage Arkansas Channel stationing Discharge Channel Channel Roughness No:rmal water El. Flow Backwater Area Are. River Levee jjrom Invert '10 Invert in Slope Bot tom Side Coe ff VelocIty 5-yr j;'req. El.I Q _ Location Designation (Acres) Station El- El- C.F.S. rt/ft Width (rt) Slope z "1'1" !-ps Q.l1 .000 efa 140.000 efa Southwest Al & ~ 368 61-00 01-00 3948.00 771-00 3940.30 45 0.001 10 2 0.030 2.0 Drain 771-00 3940.30 781-05 3939.98 49 0.003 10 2 0.030 3.0 781-15 3939.96 781-51 3939,85 49 0.003 eul vert 0.024 781-55 3939,83 921-60 3935,62 47 0.003 10 2 0.030 3,0 921-60 3935,59 921-96 3935.05 47 0.015 CUlvert 0.024 92!-96 3935.05 101150 3932.90 120 0.0025 10 2 0.030 3.8 3932.5 3939.6 South B 761 1621-00 01-00 3923.00 151-00 3920.00 192 0.0020 10 2 0.030 3,6 Drain 151-00 3920.00 501-00 3913,00 192 0,0020 10 2 0,030 3,6 501-00 39'3,00 691-00 3906.35 192 0.0035 10 2 0,030 4.4 691-00 3906.35 1091-00 3902.35 192 0.0010 10 2 0.030 2.9 1091-00 3902.35 1151-00 3898.73 192 0.0060 20 2 0.030 4.8 1151-00 3898.73 1281-00 3898.60 192 0.0001 600 2 0.030 Ponding Area 3900.9 3909.4 Southea.st el, C?, .03' 1,243 3151-00 01-00 3893.00 201-00 3889.90 60 0.00155 10 2 0,080 2.4 Dratn DJ E, & F 201-00 3889.90 311-00 3888,20 105' 0.00155' 10 2 0,030 2.8' ~ 311-00 3888.20 411-85 3886.00 201 0.0020 10 2 0,030 3.8 ~ 411-85 3886.00 431-85 3884.50 175 0.0075 Cu1 vert O.O21~ 431-85 3884.50 511-00 3883.32 175 0.00165 20 2 0.030 2.9 511-00 3883.32 791-00 3878.70 268 0.00165 20 2 0.030 3.4 791-:A 3878.68 801-35 3878.00 256 0.0068 CUlvert 0.013 801-35 3878.00 811-00 3877.93 256 0.00108 20 2 0.030 3,0 811-00 3877 .93 1581-00 3869,60 391 0.00108 20 2 0.030 3,3 3873.2 3878.1 North G1 H, J & K 375 3241-00 01-00 3892.00 281-00 3889,20 162 0.0010 10 2 0.030 2,8 3891.8 3902.. Drain 281-00 3889.20 311-70 3889057 0.0010 10 2 0.030 t: I , , , "J.