LEGEND: (A) = Depth, in Feet. (B) = Hydraulic Radius _r_, Feet. (C) = Coefficient _c_. (D) = Mean Velocity, Feet. --------------------------+----+-----+--------+-------+------ | | | Grade | | Aqueducts. | (A)| (B) | _s_. | (C) | (D) --------------------------+----+-----+--------+-------+------ † New Croton (1899) |8.42|3.974|.0001326| 153.3 | 3.52 † ” ” (after two | | | | | years’ use) | .. |2.338| ” | 131.3 | 2.312 ‡ ” ” | .. |1 | ” | 119.3 | 1.374 ‡ ” ” | .. |1.5 | ” | 126.3 | 1.781 ‡ ” ” | .. |2 | ” | 129.8 | 2.114 ‡ ” ” | .. |2.5 | ” | 132 | 2.404 ‡ ” ” | .. |3 | ” | 133.4 | 2.661 ‡ ” ” | .. |3.5 | ” | 134 | 2.887 ‡ ” ” | .. |4 | ” | 134.4 | 3.095 Old Croton (1899) clean |6 |2.338| .. | 133.4 | 2.958 ” ” ordinary | | | | | condition; | | | | | not clean |6 |2.338| .. | 123.2 | .. ” ” not clean |7.33|2.368| .. | 118.2 | .. Dorchester Bay tunnel | .. |1.875| .. | 119 | ” ” | .. |2.338| .. | 125.0 | .. Wachusetts, new; probably | | | | | clean (approx.) | .. | .. | .. | 144.9 | Sudbury, clean | .. | .5 |.000189 | 116.9 | 1.14 ” ” | .. |1.0 | ” | 127.0 | 1.74 ” ” | .. |1.5 | ” | 133.3 | 2.24 ” ” | .. |2.0 | ” | 137.8 | 2.68 ” ” | .. |2.5 | ” | 140.4 | 3.04 --------------------------+----+-----+--------+-------+------ --------------------------+----------------------+-------- | Discharge. | --------------------------+----------------------+ |Cubic Feet| Gallons | _n_ in Aqueducts. | per | per |Kutter’s | Second. | 24 Hours. |Formula. --------------------------+----------+-----------+-------- † New Croton (1899) | 371.6 |240,200,000| † ” ” (after two | | | years’ use) | .. | .. | .0133 ‡ ” ” | | | ‡ ” ” | | | ‡ ” ” | | | ‡ ” ” | | | ‡ ” ” | | | ‡ ” ” | | | ‡ ” ” | | |