FLOOD09931

• County: Statewide
• Community: Urbanizing Areas of Colorado
• Basin: Statewide
• Title: A Guide for Erosion & Sediment Control in Urbanizing Areas of Colorado
• Date: 1/1/1973
• Prepared For: State of Colorado
• Prepared By: USDA Soil Conservation Service
• Floodplain - Doc Type: Educational/Technical/Reference Information

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. 3: 1 Side Slopes
.C" Retsrdsnee

l'rlaa,u.lar .' botto. 0' bott<a W bot.t.o. '" bott<a
Gr... 0.2 0.3 0.' 0.' 0.2 0.3 0.' 0.. 0.2 0.3 0.' 0.' '.2 0.3 0.. 0.' 0.' 0.3 0.' 0.'
. d : A d '. d 1 A d . d . d . d : A d i A d . d ;A d ;A d i A d :" d : " d : " d i A d ~A d . d 1 A d ;A
20 I...,,. 2.3 he 2.1113 1.9;11 1.9122 1.7119 1.s116 1.4 :14 1.7:22 1.5:19 1.4:17 1.3h5 1.15;24 1.4:20 1.3;18 1.2:16
30 I,., ", 2.3:115 2.2:15 2.0:24 1.8:21 1. '7~ 19 1.5h6 1.9;215 1.7;22 1.5:19 1.4:1'7 1.'7:26 1.5122 1.4120 1.3;18 1.6 i2'7 1.4;23 1.3;21 1.2;19
.0 12.5h 2.4117 2.2;28 2.0:24 1.9:22 1.'7:19 2.0;28 1.8;24 1.0121 1.5 i19 1.9130 1.'7:20 1.':22 1.4:20 1.8 isl 1.6:2'7 1.5;25 1.4123
00 I 2.!1.lt 2.3;30 2.1126 2.0124 1.8 ~21 2.2:32 2.0:28 1.8124 1.e 121 2. 0 ~32 1. 8 ~28 1.0124 1.:5:22 1.9134 1.7:29 1.e:27 1.5 :25
80 2.3130 2.1126 1.9122 2.3;34 2.1130 1.9:26 1.8:24 2.2:37 2.0132 1.8128 1.e124 2.0130 1.8l31 1.7!29 1.6127
80 2.': 2.3:30 2.1:26 2.3134 2.1 30 1.9126 10,' 2.2137 2.0:32 1.8:28 2.2 ~1 2.01se 1.9134 1.7;29
100 2.51~ 2.3:30 1 0."" 2.' 34 2.1130 , 2.2137 2.0132 2.2:41 2.0:36 1.8:31
120 2.3 :34 2.3139 2.1134 2.2;41 2.0:36
140 0"_ 0"" 2.3:39 2.3143 2.1138
180 2.4:41 2.2 :41
180 I,.'.,.. ~
200 2.:5149
220 2.6 ::51

. 4: 1 Side Slopes
.C. Ret.ardanee

t>1
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e:
g:
-

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00

'"

Trlauu.lar " bot.to. widt.h O' bot.t.OII widt.h '" bot.to. widt.b 12' bot.t.oa widt.h
Or,",. 0.2 0.3 0.' 0.' 0.2 0.3 0.. 0.' 0.2 0.3 0.' 0.. '.2 ,., 0.. 0.' 0.2 0.' 0.' 0.'
. d 1 A d . d . d . d . d lA d . d ;A d . d lA d lA d 1 A d lA d lA d : A d 1" d . d . d lA d ~A
'0 ....,.. 2.4123 2.3121 2.1118 2.0128 1.8124 1.6120 1.:5118 l.e127 1.'712:5 1.:5:21 1.4 :19 1,8131 1.6126 1.4122 1.3 ;aO 1.7:32 1.e:29 1.4:2:5 1.2:20
.0 2.:5:2:5 2.4123 2.2119 2.1;30 1.9;26 1.7:22 1.6:20 2.0132 1.6127 1.6;23 1.S:al 1.9 :33 1.7:29 1.:5:24 1.4 ~2 1.8135 1.7132 1.:5;27 1.3122
00 2. 1\; S>~ 2.4~23 2.313:5 2.1130 1.9126 1.7:22 2.1:34 1.9;30 1.'712:5 1.6123 2.0;36 1.8!31 1.6:26. 1.S ::a4 1,9:3'1 1.8:3:5 1.6:29 1.4:25
80 ' 2.1\:21\ 2..b7 2.2:33 2.0:28 1.9126 2.3;40 2.1134 1.9:30 1.'7:2:5 2.1139 1.9134 1.7129 1.6126 2.0140 1.9j37 1.7:32 1.:5127
80 2.4'37 2.2:33 2.0:28 ,.".. 2.3140 2.1134 1.9:30 2.3:44 2.1:39 1.9:34 1.8 :31 2.2!"O 2.0140 1.ei35 1,7132
100 2.":.1'l 2.3;311 2.2133 2.5:45 2.3140 2.0132 2.5:se 2.3144 2.1;39 1.9 :34 2.3:49 2.1:43 2.0:40 1.8:3:5
120 2.,140 2.4137 2.":42 2.2:37 "...150 2.31.. 2.1;39 0:"" 2.3149 2.2:46 2.0140
140 ,. 0"" 2.3:40 2.414'1 2.2:'1 2.5:.... 2.3;49 2.1;43
'.0 2.11.:"'11. 0 2.3 :.. 2.4::52 2.2:4e
100 2.4 ~7 -0'.,.. 2.3:49
200 " ":"0 2.4 ~S2
,
220

Diversion design table - "c" Retardance (V and Trapezoidal Section)
(Sheet 1 of 2)

10-26-15:5

4-L-10122-1