TABLE V. 
Discharge Over Rectangular Weirs, with and without Contraction. 
Formula, D= 3 ^ ( 1—.2 H) H 3 ' 2 
For conditions, see page 29. 
Depth, H, of 
Water on crest 
Measured in 
Still Water. 
DISCHARGE IN 
CUBIC FEET PER SECOND 
■ 
With Two Complete Contractions. 
Correction 
to be AD¬ 
DED toeach 
of the pre- 
ceedin g to 
give dis¬ 
charge with 
no contrac¬ 
tion. 
In In¬ 
ches 
In 
Feet 
1 Foot 
Long 
VA Feet 
Long 
2 Feet 
Long 
3 Feet 
Long 
5 Feet 
Long 
10 Feet 
Long 
0.3 
.025 
.0133 
.0200 
.0267 
.0400 
.0677 
.1330 
.0000 
0.6 
.050 
.0369 
.0556 
.0743 
.1116 
.1863 
.3716 
.0004 
0.9 
.075 
.0674 
.1015 
.1350 
.2040 
.3410 
.6830 
.0010 
1.2 
.1 
.1033 
.1560 
.2087 
.3132 
.5240 
1.0519 
.0021 
1.5 
.125 
.1438 
.2175 
.2912 
.4385 
.7332 
1.4695 
.0037 
1.8 
.15 
.1879 
.2847 
.3816 
.5753 
.9627 
1.9312 
.0058 
2.1 
.175 
.2355 
.3575 
.4795 
.7235 
1.2115 
2.4315 
.0085 
2.4 
.2 
.2861 
.4352 
.5843 
.8824 
1.4787 
2.9690 
.0119 
2.7 
.225 
.3399 
.5177 
.6956 
1.051 3 
1.7627 
3.5412 
.0160 
3.0 
.25 
.3959 
.6042 
.8126 
1.2293 
2.0227 
4.1462 
.0208 
3.3 
.275 
.4543 
.6946 
.9350 
1.4157 
2.3771 
4.7803 
.0264 
3.6 
.3 
.5149 
.7888 
1.0627 
1.6104 
2.7059 
5.4442 
.0328 
3.9 
.325 
.5775 
.8863 
1.1952 
1.8129 
3.0482 
6.1363 
.0401 
4.2 
.35 
.6420 
.9871 
1.3321 
2.0223 
3.4032 
6.8537 
.0483 
4.5 
.375 
.7079 
1.0909 
1.4732 
2.2335 
3.7691 
7.5976 
.0574 
4.8 
.4 
1.1974 
1.6189 
2_ 4 6 2 3 
4.1485 
8.3645 
.0675 
5.1 
.425 
1.3070 
1.7680 
2.6926 
4.5400 
9.1565 
.0785 
5.4 
.45 
1.4189 
1.9221 
2.9280 
4.9404 
9.9775 
.0906 
5.7 
.475 
1.5333 
2.0790 
3.1708 
5.3523 
10.8094 
.1037 
6.0 
.5 
1.6500 
2.2392 
3.4177 
5.7748 
11.6672 
.1178 
6.3 
.525 
. ______ 
1.7689 
2.4029 
3.6709 
6.2069 
12.5469 
.1331 
6.6 
.55 
1.8890 
2.5698 
3.9295 
6.6489 
13.4474 
.1496 
6.9 
.575 
2.0129 
2.7395 
4.1928 
7.0995 
14.3668 
.1672 
7.2 
.6 
2.1378 
2.9123 
4.4614 
7.5596 
15.3052 
.1859 
7.5 
.625 
2.2646 
3.0881 
4.7351 
8.0291 
16.2641 
.2059 
7.8 
.65 
2.3929 
3.2665 
5.0133 
8.5069 
17.2409 
.2271 
8.1 
.675 
2.5234 
3.3478 
5.2960 
8.9930 
18.2354 
.2495 
8.4 
.7 
3.6313 
5.5836 
9.4832 
19.2497 
.2733 
8.7 
.725 
3.8170 
5.8747 
9.9906 
20.2796 
.2984 
9.0 
.75 
• •••••• 
4.0052 
6.1702 
10.5007 
21.3262 
.3248 
9.3 
.775 
. 
4.1961 
6.4704 
11.0190 
22.3895 
.3524 
9.6 
.8 
4.3888 
6.7734 
11.5444 
23.4704 
.3816 
9.9 
.825 
• •••••• 
4.5833 
7.0810 
12.0769 
24.5659 
.4121 
10.2 
.85 
• ••••• • 
4.7806 
7.3929 
12.6169 
25.6779 
.4440 
10.5 
.875 
. 
4.9792 
7.7075 
13.1641 
26.8056 
.4775 
10.8 
.9 
-8.0257 
13.7177 
27.9477 
.5123 
11.1 
.925 
8.3509 
14.2839 
29.1164 
.5486 
11.4 
.95 
8.6731 
14.8461 
30.2786 
.5864 
11.7 
.975 
9.0012 
15.4192 
31.4652 
.6258 
12.0 
1.0 
9.3333 
16.0000 
32.6667 
.6667 
12.3 
1.025 
9.6685 
16.5869 
33.8829 
.7091 
12.6 
1.05 
10.0058 
17.1789 
35.1109 
.7531 
12.9 
1.075 
10.3471 
17.7777 
36.3552 
.7988 
13.2 
1.1 
10.6907 
18.3825 
37.6100 
.8490 
13.5 
1.125 
11.0376 
18.9926 
38.8801 
.8949 
13.8 
1.150 
11.3866 
19.6080 
40.1625 
.9455 
14.1 
1.175 
. 
11.7388 
20.2298 
41.4573 
.9977 
14.4 
1.2 
12.0935 
20.8569 
42.7664 
1.0516 
14.7 
1.225 
12.4507 
21.4893 
44.0866 
1.1073 
15.0 
1.25 
12.8109 
22.1279 
45.4204 
1.1646 
15.3 
1.275 
. 
13.1733 
22.7713 
46.7653 
1.2237 
15.6 
1.3 
13.5375 
23.4189 
48.1224 
1.2846 
15.9 
1.325 
13.9067 
24.0727 
49.4927 
1.3473 
16.2 
1.35 
14.2740 
24.7308 
50.87*83 
1.4117 
16.5 
1.375 
• . 
14.6450 
25.3946 
52.2671 
1.4780 
16.8 
1.4 
26.0625 
53.6710 
1.5460 
17.1 
1.425 
26.7355 
55.0870 
1.6160 
17.4 
1.45 
27.4127 
56.5132 
1.6878 
17.7 
1.475 
. 
28.0950 
57.9515 
1.7615 
