DFHADprototype071409.. - Urban Drainage and Flood Control District

HOFFMAN MAJOR DRAINAGEWAY PLANNING
FLOOD HAZARD AREA DELINEATION
Basin ID
Table B-1
Subwatershed Characteristics
Impervious
Percent
Initial
(in/hr)
Infiltration
Final
(in/hr)
Decay Coefficient
(1/sec)
Area (ac.) Width (ft) Slope (%) (%) Subarea Routing Routed
10 5.31 109 2.12 80 PERVIOUS 33 3.00 0.50 6.48
11 67.69 516 1.47 62 PERVIOUS 33 3.00 0.50 6.48
12 8.78 96 1.33 80 IMPERVIOUS 50 3.00 0.50 6.48
13 15.37 253 2.26 64 PERVIOUS 33 3.00 0.50 6.48
14 43.24 234 1.01 39 PERVIOUS 33 3.00 0.50 6.48
15 18.71 182 3.08 46 PERVIOUS 33 3.00 0.50 6.48
20 19.77 307 3.08 35 PERVIOUS 33 3.00 0.50 6.48
21 71.61 612 2.91 40 PERVIOUS 33 3.00 0.50 6.48
22 35.28 745 3.64 35 PERVIOUS 33 3.00 0.50 6.48
23 39.81 784 4.20 36 PERVIOUS 33 3.00 0.50 6.48
24 31.89 536 3.44 40 PERVIOUS 33 3.16 0.54 6.17
25 54.87 1030 7.72 72 PERVIOUS 33 4.10 0.78 4.30
30 26.63 611 3.92 89 PERVIOUS 33 3.00 0.50 6.48
31 22.63 238 2.49 77 IMPERVIOUS 50 3.00 0.50 6.48
32 47.55 388 2.93 57 IMPERVIOUS 50 3.00 0.50 6.48
33 64.39 1147 5.72 50 PERVIOUS 33 3.81 0.70 4.88
34 31.81 374 3.95 57 IMPERVIOUS 50 4.30 0.82 3.91
35 42.24 578 3.82 75 IMPERVIOUS 50 4.38 0.85 3.74
40 107.57 706 0.58 94 IMPERVIOUS 50 4.68 0.92 3.14
41 32.81 921 1.65 80 IMPERVIOUS 50 3.17 0.54 6.15
42 42.13 444 1.31 80 IMPERVIOUS 50 3.00 0.50 6.48
43 73.76 571 2.39 42 PERVIOUS 33 3.00 0.50 6.48
44 54.20 617 2.09 35 PERVIOUS 33 3.00 0.50 6.48
45 57.89 450 2.11 44 PERVIOUS 33 3.00 0.50 6.48
50 46.52 307 2.28 80 IMPERVIOUS 50 3.94 0.74 4.61
51 65.28 503 2.89 80 IMPERVIOUS 50 3.65 0.66 5.2
52 19.06 411 9.34 66 IMPERVIOUS 50 3.00 0.50 6.48
DFHAD Prototype