MEASUREMENT ANt) DIVISION OE WATER. 
.33 
discharge over trapezoidal weirs— Continued. 
Depth of wa¬ 
ter on crest. 
DISCHARGE IN 
CUBIC FEET PER SECOND OVER WEIR. 
In 
In 
2 1't. 
3 ft. 
4 ft. 
5 ft. 
7 ft. 
10 ft. 
Ins. 
Feet. 
Long. 
Long. 
Long. 
Long. 
Long. 
Long. 
8.4 
.70 
3.9437 
5.8156 
7.8874 
9.8593 
13.8030 
19.7186 
8.7 
.725 
4.1565 
6.2347 
8.2930 
10.3912 
14.5477 
20.7824 
0.0 
.75 
4.3733 
6.5599 
8.7466 
10.9332 
15.3065 
21.8665 
9.3 
.775 
4.5942 
6.8812 
9.1883 
11.4854 
16.0796 
22.9708 
9.6 
.80 
4.8177 
7 2265 
9.6354 
12.0442 
16.8619 
24.0885 
9.9 
.825 
5,0453 
7.5679 
10.0903 
12.6132 
17.6585 
25.2264 
10.2 
.85 
7.9154 
10.5738 
13.1923 
18.4692 
26.3846 
10.5 
.875 
8.2669 
11.0225 
13.7781 
19.2893 
27.5562 
10.8 
.90 
8.6234 
11.4973 
14.3723 
20.1212 
28.7446 
11.1 
.925 
8.9850 
11.9800 
14.9749 
20.9649 
29.9499 
11,4 
.95 
9.3510 
12.4688 
15.5860 
21.8204 
31.1720 
11.7 
.975 
9.7233 
12.9644 
16.2054 
22.6876 
32.4019 
12.0 
1.C0 
| . 
10.1000 
13.5667 
16.8333 
23.5667 
33.6667 
12.3 
1.025 
10.4808 
13.8744 
17.4679 
24.4551 
34.9359 
12.6 
1.05 
10.8666 
14.4888 
18.1110 
25.3554 
36.2220 
12.9 
1.075 
11.2575 
15.0100 
18.7624 
26.2674 
37.5249 
13.2 
1.10 
11.6524 
15.5365 
19.4206 
27.1888 
38.8412 
13.5 
1.125 
12.0513 
16.0884 
20.0855 
*28.1198 
40.1711 
13.8 
1.115 
12.4553 
16.6071 
20.7588 
29.0624 
41.5177 
14.1 
1.175 
12.8614 
17.1525 
21.4406 
30.0163 
42.8812 
14.4 
1.2 
13.2764 
17.7019 
22.1274 
30.S784 
44.2548 
14.7 
1.225 
13.6936 
18.2581 
22.8226 
31.8517 
45.6453 
15.0 
1.25 
14.1148 
18.8197 
23.5246 
32.9344 
47.0492 
15.3 
1.275 
14.5410 
19.3880 
24.2349 
33.9289 
*48.4699 
15.6 
1.3 
• 
19.9603 
24.8503 
34.9305 
49 9007 
15.9 
1.325 
20.5394 
25.6742 
35.9439 
51 3484 
16.2 
1.35 
21.1238 
26.4047 
36.9666 
52 8095 
16.5 
1.375 
21.7123 
27.1404 
37.9966 
54.2808 
16,8 
1.4 
22.3075 
27.8844 
39.0362 
55 7688 
17,1 
1.425 
• til t f 
22.9082 
28,6352 
40,0893 
67.8704 
17.4 
1.45 
MM If 
♦ | * « * * 
23.5128 
89,8010 
414474 
58.7820 
17,7 
1,475 
Itll f 1 
M'l tl 
21,1242 
804552 
43,8173 
60.3105 
