—40— 
i 
TABLE V. 
Discharge Over Rectangular Weirs, with and without Contraction. 
3 . 
Formula, D = 3^ (1 — .2 H) Hi 
For conditions, see page 31. 
Depth, H, of 
Water on crest 
Measured in 
Still Water. 
See Page 25 
In 
Inches. 
0.3 
0.6 
0.1 
In 
r eet. 
.025 
.050 
.075 
DISCHARGE IN CUBIC FEET PER SECOND. 
With Two Complete Contractions. 
1 Foot 
Long. 
.0133 
.0369 
.0674 
1V% Feet 
Long. 
.0200 
.0556 
.1015 
2 Feet 
Long. 
1.2 
1.5 
1.8 
2.1 
.1 
. 125 
. 1 . 
.175 
. 0267 
.0743 
.1350 
3 Feet 
Loner. 
.0400 
.1116 
. 2040 
5 Feet 
Long. 
. 1033 
.1438 
.1879 
. 2355 
.0677 
.1863 
.3110 
10 Feet 
Long. 
2.4 
2.7 
3.0 
3.3 
3.6 
3.9 
4.2 
4.5 
.2 
.225 
.25 
.275 
.3 
.325 
.35 
.375 
4.8 
5.1 
5.4 
5.7 
.4 
. 425 
.45 
.475 
6.0 
6.3 
6.6 
6.9 
.525 
.55 
.575 
7.2 
7.5 
7.8 
8.1 
8.4 
8.7 
9.0 
9.3 
.725 
.75 
.775 
.2831 
.3393 
.3959 
• 4543 
.1560 
.2087 
.3132 
.5240 
.2175 
.2912 
.4385 
.7332 
.2847 
.3816 
. 5753 
.9627 
. 3575 
.4795 
.7235 
1.2115 
. 1330 
.3716 
.6830 
Correction to be ad¬ 
ded to each of the 
preceding to give 
discharge with No 
contraction. 
.4352 
.5177 
.6042 
.6946 
1.0519 
1.4697 
1.9312 
2.4315 
.5813 
. 6956 
.812(5 
.9350 
5149 
.5775 
.6120 
.7079 
.8824 
1.0513 
1.2293 
1.4157 
1.4/87 
1.7627 
2.0227 
2.3771 
2.9690 
3.5412 
4.1462 
4.7803 
.7833 
.8363 
.9371 
1.0909 
1.0827 
1.1952 
1.3321 
1.4732 
1.6104 
1.8129 
2.0223 
2.2335 
1.1974 
1.3070 
1.4189 
1.5333 
2.7059 
3.0482 
3.4032 
3.7691 
1.6189 
1.7680 
1.9221 
2.0790 
5.4442 
6.1363 
6.3537 
7.5978 
2.4623 
2.6926 
2.9280 
3.1708 
4.1485 
4.5400 
4.9404 
5.3523 
1.6500 
1.7689 
1.8890 
.6 
2.1378 
.625 
2.2646 
.65 
2.3929 
.675 
. 
2.5234 
2.2392 
2.4029 
2.5698 
2.7395 
3.4177 
3.6709 
3.9295 
4.1928 
8.3645 
9.1565 
9.9775 
10.8094 
5.7748 
6.2069 
6.6489 
7.0986 
2.9123 
3.0881 
3.2665 
3.3473 
11.6672 
12.5469 
13.4474 
14.3663 
4.4614 
4.7351 
5.0133 
5.2960 
7.5596 
8.0291 
8.5069 
8.9930 
15.3052 
18.2641 
17.2409 
18.2354 
3.6313 
3.8170 
4.0052 
9.6 
9.9 
.8 
.825 
4.3888 
4.5833 
4.7806 
4.9792 
10.2 
.85 
10.5 
.875 
10.8 
.9 
11.1 
.925 
11.4 
.95 
11.7 
.975 
12.0 
1.0 
12.3 
1.025 
12.6 
1.05 
12.9 
1.075 
5.5836 
5.8747 
6.1702 
6.4704 
6.7734 
7.0810 
7.3929 
7 .7075 
8.0257 
8.3509 
8.6731 
9 0012 
14.2839 
14.8461 
15.4192 
29.1164 
30.2786 
31.4652 
9.3333 
9.6H85 
10.0058 
10.3471 
16.0000 
16.5869 
17.1789 
17.7777 
32.6667 
33.8829 
35.1109 
36.3552 
.0000 
.0004 
.0010 
.0021 
.0037 
.0058 
.0085 
.0119 
.0160 
.0208 
.0261 
.0328 
.0101 
.0183 
.0574 
.0675 
.0785 
.0908 
. 1037 
. 1178 
.1331 
.1496 
.1672 
. 1859 
.2059 
.2271 
9.4832 
9.9906 
10.5007 
11.0190 
19.2497 
20.2796 
21.3262 
22.3895 
.2733 
.2984 
.3248 
.3524 
11.5444 
23.4704 
.3816 
12.0769 
24.5659 
.4121 
12.6169 
25.6779 
.4440 
13.1641 
26.8056 
.4775 
.5123 
.5486 
.5864 
.6258 
.6667 
.7091 
.7531 
13.5 
1.125 
1 10.6907 
1 11 
18.3825 
37.6100 
38.8801 
40.1625 
41.4573 
.0849 
13.8 
1.150 
1 11 3QKK 
18.9326 
.8949 
14.1 
111 
1.175 
1 11.7388 
19.6080 
20.2298 
.9455 
9977 
14.7 
I . Cl 
1.225 
1. 
12.0935 
19 I~fl7 
20.5569 
42.7664 
1.0516 
15.0 
15.3 
1.35 | 
19 Qino 
21.4893 
44.0866 
1.1073 
1.275 | 
1 4 
. 
. 
13.1733 
22.1279 
22.7713 
45.4204 
46.7653 
1.1646 
1.2237 
15. 9 
16.2 
1.325 
1.35 
. 
. 
13 . 90(57 
1 1 97/fA 
23.4189 
24.0727 
24.7308 
25.3945 
48.1224 
40.4927 
| 1.28/6 
1.3473 
16.5 
IK W 
1.375 
1-1. _ 41U 
14.6450 
50.8733 
52.2671 
1.4117 
1 4780 
17.1 
17.4 
1.4 
1.425 
26.0625 
53.6710 
55.0870 
56.51S2 
1.5460 
1 . 45 
wb. 7ui)5 
1.6160 
17.7 
1.475 
27.4127 
o q rocn 
1.6878 
