Hydraulic proportion charts for WTC sewer design

NYC 9/11 Public Portal Document

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___ . _________ •18 * 23 in. 14 in. 2% in. 28'/a in. 19’/a in. 4 Ft. 1.8Sq. Ft. 195# 24 30 19 3% 36’/a 25’/a 6 3.3 300 27 34 22 3’/a 41 29 6 4.1 365 30 38 24 3% 45/2 31’/a 6 5.1 430 33 42 27 3’4 49’/a 34’/a 6 6.3 475 36 45 29 4/2 54 38 6 7.4 625 39 49 32 4’4 58’/a 41’/a 6 . 8.8 720 42 53 34 5 63 44 6 10.2 815 48 60 38 5/2 71 49 6 12.9 1000 o- 54 68 43 6 80 55 6 16.6 1235 60 76 48 6/2 89 61 6 20.5 1475 66 83 53 7 97 67* 6 24.8 1745 72 91 58 7’/2 106 73 6 29.5 2040 78 98 63 8 114 79 6 34.6 2350 84 106 68 8/2 123. 85 6 40.1 2680 90 113 72 9 131 90 6. 46.1 3050 96 121 77 9/2 140 96 6 52.4 3420 102 128 82 9’4 147/2 101/2 6 59.2 3725 108 136 87 10 156 107 6 66.4 4050 ! 114 143 92 10/2 164 113 6 74.0 4470 120 151 97 11 173 119 6 82.0 4930 132 166 106 12 190 130 6 99.2 5900 144 180 116 13 206 142 6 118.6 7

NYC-WTC_000165525