34 
MEASUREMENT AND DIVISION OF WATER 
discharge over trapezoidal weirs.— Continued. 
Depth of water 
on crest. 
DISCHARGE IN CUBIC FEET PER SECOND OVER WEIR. 
In 
In 
4 ft. 
5 ft. 
7 ft. 
10 ft. 
Inches. 
Feet. 
Long. 
Long. 
Long. 
Long. 
18.0 
1.5 
24.7396 
30.9245 
43.2943 
61.8490 
18.3 
1.525 
25.3604 
31.7005 
44-3808 
63.4011 
18 6 
1.55 
25.9866 
32.4833 
45.4766 
64.9666 
18.9 
1.575 
26.6182 
33.2727 
46.5818 
66.5455 
19.2 
1.6 
34 0685 
47.6959 
68.1870 
19.5 
1.625 
84.8702 
48.8188 
69.7405 
19.8 
1.65 
35.6782 
49.9495 
71.3565 
20.1 
1.675 
36.4913 
51.0878 
72.9826 
20.4 
1.7 
37.3111 
52.2355 
74.6222 
20.7 
1.725 
38.1376 
53.3926 
76.2752 
21.0 
1.75 
38.9691 
54.5563 
77.9383 
21.3 
1.775 
39.8074 
55.7304 
79.6149 
21.6 
1.8 
40.6515 
56.9121 
81.8080 
21.9 
1.825 
41.5009 
58.1013 
83.0018 
22.2 
1.85 
42.3577 
59.3008 
84.7154 
22.5 
1.875 
43.2179 
60.5031 
86.4358 
22.8 
1.9 
61.7211 
88 1780 
23.1 
1.925 
62 9442 
89 9203 
23.4 
1.95 
64 1720 
91 6743 
23.7 
1.975 
65.4116 
93.4452 
24.0 
2.0 
66.6560 
95.2228 
25.5 
2.125 
72.999 
104.285 
27.0 
2.25 
79.541 
118.63 
28.8 
2.4 
87.619 
125.17 
30.0 
2.5 
93.156 
133.08 
