FLOOD02273

• County: Statewide
• Community: State of Colorado
• Stream Name: All
• Basin: Statewide
• Title: Hydraulic Design of Energy Dissipators for Culverts and Channels
• Date: 12/1/1975
• Prepared For: USDOT
• Prepared By: Federal Highway Administration
• Floodplain - Doc Type: Educational/Technical/Reference Information

e

>

e

.

e

Table 11I.1.-Ul1iJ1Jnnj]ow in frtlpe:oiJal channels by Manning'sjimnula.-Continued, from Reference 111-3.

On ~>c<A
Jib Values of b8/3 SI/2 '"0 -.-.:.-
I I
Z ~b--i Z
1 = () 1 = 1/4 z = 1/2 z = 3/4 Z'" I z = 1-114 z = 1-1/2 z = 1-3/4 z = 2 z = 3
.45 .256 .303 .346 .385 .422 .455 .487 .519 .548 .665
46 .263 .313 .359 .401 .439 .475 .509 .541 .574 .696
.47 .271 .323 .371 .411 .457 .494 .530 .565 .600 .729
.48 .279 .333 .384 .432 .475 .514 .552 .589 .626 .763
.49 .287 .345 .398 .448 .492 .534 .575 .614 .652 .797
.50 .295 .356 .411 .463 .512 .556 .599 .639 .679 .833
.52 310 .377 .438 .496 .548 .599 .646 .692 .735 .906
.54 .327 .398 .468 .530 .590 .644 .696 .746 .795 .984
.56 .343 .421 .496 .567 .631 .690 .748 .803 .856 1.07
.58 .359 .444 .526 .601 .671 .739 .802 .863 .922 1.15
.60 .375 .468 .556 .640 .717 .789 .858 .924 .988 1.24
62 .391 .492 .590 .679 .763 .841 .917 .989 1.06 1.33
.64 .408 .516 .620 .718 .809 .894 .976 1.05 1.13 1.43
.66 .424 .541 .653 .759 .858 .951 1.04 1.13 1.21 1.53
.68 .441 .566 .687 .801 .908 1.01 1.10 1.20 1.29 1.64
.70 .457 .591 .722 .842 .958 1.07 1.17 1.27 1.37 1.75
.72 .474 .617 .757 .887 1.01 1.13 1.24 1.35 1.45 1.87
.74 .491 .644 .793 .932 1.07 1.19 1.31 1.43 1.55 1.98
.76 .508 .670 .830 .981 1.12 1.26 1.39 1.51 1.64 2.11
.78 .525 .698 .868 1.03 1.18 1.32 1.46 1.60 1.73 2.24
.80 .542 .725 .906 1.08 1.24 1.40 1.54 1.69 1.83 2.37
.82 .559 .753 .945 1.13 1.30 1.47 1.63 1.78 1.93 2.51
.84 .576 .782 .985 1.18 1.36 1.54 1.71 1.87 2.03 2.65
.86 .593 .810 1.03 1.23 1.43 1.61 1.79 1.97 2.14 2.80
.88 .610 .839 1.07 1.29 1.49 1.69 1.88 2_07 2.25 2.95
.90 .627 .871 1.11 1.34 '.56 1.77 1.98 2.17 2.36 3.11
.92 .645 .898 1.15 1.40 1.63 1.86 2.07 2.28 2.48 3.27
.94 .662 .928 1.20 1.46 1.70 '.94 2.16 2.38 2.60 3.43
.96 .680 .960 1.25 1.52 1.78 2.03 2.27 2.50 2.73 3.61
.98 .697 .991 1.29 1.58 1.85 2.11 2.37 2.61 2.85 3.79
1.00 .714 1.02 1.33 1.64 1.93 2.21 2.47 2.73 2.99 3.97
1.05 .759 1.10 1.46 1.80 2.13 2.44 2_75 3.04 3.33 4.45
1.10 .802 1.19 1.58 1.97 2.34 2.69 3.04 3.37 3.70 4.96
1.15 .846 1.27 1.71 2.'4 2.56 2.96 3.34 3.72 4.09 5.52
1.20 .891 1.36 1.85 2.33 2.79 3.24 3.68 4.09 4.50 6.11
1.25 .936 1.45 1.99 2.52 3-04 3.54 4.03 4.49 4.95 6.73
'.30 .980 1.54 2.14 2.73 3.30 3.85 4.39 4.90 5.42 7.39
1.35 1.02 1.64 2.29 2.94 3.57 4.18 4.76 5.34 5.90 8.10
1.40 1.07 1.74 2.45 3.16 3.85 4.52 5.18 5.80 6.43 8_83
1.45 1.11 1.84 2.61 3.39 4.15 4.88 5.60 6.29 6_98 9.62

III-I 7