30 BULLETIN 854, U. S. DEPARTMENT OF AGRICULTURE. 



Table 4. — Elements of experiments for concrete tile — Continued. 

 10-INCH TILE— Continued. 



Test No. 



617 i 



648' 

 649' 

 650. 

 651 . 

 652. 

 6.53. 

 654. 

 655. 

 656. 

 657. 

 658. 

 659. 



660' . 

 661'. 

 662'. 

 663. 

 664. 

 665. 

 666. 

 667. 

 668. 

 669. 

 670. 

 671. 

 672. 

 673. 



674'. 

 675 1 . 

 676' . 

 677. 

 678. 

 679. 

 680. 

 681. 

 682. 

 683. 

 684. 

 685. 

 686. 



687 . 



688 . 



690.... 

 691.... 

 692.... 

 693.... 

 694.... 

 695.... 

 696.... 

 697.... 

 698.... 

 699.... 



700'. 

 701'. 

 702'. 

 703. 

 704. 

 7&5. 

 706. 

 707. 

 708. 

 709. 

 710. 

 711. 



Depth 

 of 



fiow. 



eet. 



.814 

 .811 

 .789 



.739 

 .710 

 .670 

 .617 

 .593 

 .557 

 .486 

 .423 

 .322 

 .238 



.813 



.798 

 .797 

 .738 

 .708 

 .667 

 .621 

 .594 

 .561 

 .483 

 .439 

 .429 

 .343 

 .248 



.813 

 .810 

 .790 

 .740 

 .715 

 .663 

 .636 

 .598 

 . 554 

 .498 

 .436 

 .339 

 .243 



.805 

 .804 

 .789 

 .741 

 .704 

 .678 

 .623 

 .586 

 . 562 

 .492 

 .420 

 .338 

 .231 



.793 

 .785 

 .772 

 .729 

 .686 

 .621 

 .593 

 .566 

 .499 

 .421 

 .341 

 .232 



3 



4 



d 



Area 



D 



of 

 fiow. 





(i) 





Sq. 'ft. 



0.98 



0. 5357 



.98 



.5351 



.95 



.52S6 



.89 



.5068 



.86 



.4910 



.81 



.4664 



.75 



.4300 



.72 



.4124 



.67 



.3850 



.59 



.3283 



.51 



.2766 



.39 



.1936 



.29 



.1280 



.98 



.5355 



.97 



.5316 



.96 



.5313 



.89 



.5063 



.86 



.4899 



.81 



.4644 



.75 



.4329 



.72 



.4132 



.68 



.3881 



.58 



.3259 



.53 



.2898 



.52 



.2815 



.41 



.2106 



.30 



.1355 



.98 



.5356 



.98 



.5349 



.95 



.5290 



.89 



.5073 



.86 



.4939 



.80 



.4619 



.77 



.4435 



.72 



.4161 



.67 



.3827 



.60 



.3381 



.53 



.2873 



.41 



.2074 



.29 



.1317 



.97 



. 5336 



.97 



.5333 



.95 



. 5287 



.90 



.5078 



.85 



. 4875 



.82 



.4716 



.75 



.4343 



.71 



. 4072 



.68 



.3889 



. 60 



.3332 



.51 



.2741 



.41 



. 2066 



.28 



.1227 



.96 



.5300 



.95 



. 5272 



. 93 



.5222 



.88 



. 5016 



.83 



.4766 



.75 



. 4329 



.72 



.4124 



.68 



.3919 



.60 



.3389 



.51 



.2749 



.41 



.2090 



.28 



.1235 



0.99 

 .99 

 .98 

 .94 

 .91 

 .87 

 .80 

 .77 

 .72 

 .61 

 .51 

 .36 

 .24 



.94 

 .92 

 .86 

 .83 

 .77 

 .71 

 .63 

 .53 

 .39 

 .25 



.99 

 .99 

 .98 

 .95 

 .91 

 .88 

 .81 

 .76 

 .72 

 .62 

 .51 

 .38 

 .23 



.99 



.98 

 .97 

 .93 

 .89 

 .81 

 .77 

 .73 

 .63 

 .51 

 .39 

 .23 



Hy- 

 draulic 



radius. 



(R) 



Feet. 

 0. 2241 

 . 2262 

 .2360 

 . 2475 

 . 2505 

 . 2519 

 .2493 

 .2466 

 .2419 

 .2273 

 .2097 

 .1736 

 .1366 



.2248 

 .2326 

 .2330 

 .2476 

 . 2506 

 .2518 

 .2497 

 .2467 

 .2425 

 . 2265 

 .2145 

 .2115 

 .1819 

 .1413 



.2248 

 . 2267 

 .2356 

 .2473 

 . 2501 

 .2517 

 .2508 

 .2472 

 .2413 

 .2300 

 .2136 

 .1804 

 .1390 



.2294 

 .2299 

 .2360 

 .2471 

 .2509 

 .2518 

 .2498 

 . 2458 

 .2427 

 . 2286 



. 2088 



.1800 

 .1332 



.2316 

 .2373 

 .2411 

 .2488 

 .2516 

 . 2497 

 .2166 

 . 2 134 

 .2302- 

 .2091 

 .1812 

 .1337 



Dis- 

 charge. 



(Q) 



Cu.ft. 

 per sec. 



0. 7240 

 .7510 

 .7780 

 .7615 

 . 7360 

 .6930 

 .6278 

 .5954 

 . 5354 

 .4462 

 . 3650 

 .1998 

 .1110 



1. 1160 



1. 1020 



1.1360 



1.0960 



1. 0600 



1.0105 



.9448 



.8639 



.7996 



. 6251 



.5186 



.4982 



. 3250 



.1437 



1. 3400 



1. 3380 



1.3800 



1.3450 



1. 3280 



1. 2360 



1. 1800 



1. 0760 



.9586 



.8092 



.6332 



.3791 



.1853 



1. 7650 

 1.7350 

 1. 73.50 

 1.7300 

 1.6825 

 1. 6250 

 1. 4800 

 1.3450 



1.2480 

 .9930 

 .7315 

 .4934 

 .2222 



1. 7600 

 1.7400 

 1.7175 

 1.7100 

 1. 6250 

 1.4840 



1.34(10 

 1.2460 

 .9949 

 .7315 

 .4887 

 .2236 



Ve- 

 locity. 



<*) 



. 0050 

 . 0050 

 .0050 

 . 0050 

 . 0050 

 . 0050 

 . 0050 

 .00.50 

 . 0050 

 .0050 

 . 0050 

 .00.50 

 .0050 



Kutter 

 coeT- 

 cient. 



(«) 



0. 0121 

 .0119 

 .0117 

 .0119 

 . 0120 

 .0121 

 .0121 

 .0122 

 . 0124 

 .0122 

 .0119 

 .0128 

 .0126 



.0114 

 .0117 

 .0115 

 .0118 

 .0119 

 .0119 

 .0118 

 .0121 

 .0121 

 .0123 

 .0125 

 . 0125 

 .0127 

 .0145 



.0117 

 .0117 

 .0116 

 .0118 

 .0117 

 .0118 

 .0119 

 .0120 

 .0122 

 .0123 

 . 0125 

 .0130 

 .0136 



.0116 

 .0118 

 .0119 

 .0119 

 .0119 

 .0119 

 .0120 

 . 0121 

 .0123 

 .0126 

 .0129 

 .0129 

 .0133 



.0117 

 .0119 

 .0120 

 .0119 

 .0120 

 .0119 

 .0123 

 .0124 

 .0128 

 . 0130 

 .0132 

 .0134 



1 These tests used in deriving formula; 20 and 28. 



