2017-02-03_PERMIT FILE - C1980004A ‎(11)‎

• Permit No: C1980004A
• IBM Index Class Name: Permit File
• Doc Date: 2/3/2017
• Section_Exhibit Name: Tables 4.2 to 4.5-28
• Media Type: D
• Archive: Yes

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TABLE 4.2-12
RUNOFF VOLUMES - SUMMARY OF DITCH SIZES

SIDE SIDE
SLOPE SLOPE MAX BOTTOM DITCH RIP
Ditch TYPE Ri ht Left GRADE WIDTH DEPTH RAP Flow Event
ft. ft. in. cfs
1 TRAP 1.5 1.5 10.0% 3.0 1.1 - 1.5 10-YEAR
2 TRAP 1.5 1.5 14.0% 3.0 1.1 - 1.4 10-YEAR
3 TRAP 1.5 1.5 8.0% 3.0 1.2 - 4.9 10-YEAR
4 V-DITCH 1.5 1.5 6.0% - 1.3 - 0.6 10-YEAR
5 V-DITCH 1.5 1.5 77.0% - 1.1 - 0.5 10-YEAR
* 6 TRAP 1.5 1.5 5.0% 3.0 1.3 "9.0 6.8 10-YEAR
* 7-1 TRAP 1.5 1.5 33.0% 3.0 1.1 21.0 ' 16.1 100-YEAR
* 7-2 TRAP 1.5 1.5 4.2% 3.0 1.6 12.Os 27.6 100-YEAR
* 7-3 TRAP 1.5 1.5 10.0% 3.0 1.2 ; 9.0 3.7 10-YEAR
8-1 V-DITCH 1.5 1.5 1.3% - 0.7 - 0.5 100-YEAR
8-2 V-DITCH 1.5 1.5 1.3% - 1.8 - 16.1 100-YEAR
* 9 TRAP 1.5 1.5 3.8% 3.0 1.6 9.0 :. 29.5 100-YEAR
* 10-1 TRAP 1.5 1.5 2.6% 3.0 1.3 9,0 15.2 10-YEAR
10-1 a TRAP 1.5 1.5 8.0% 3.0 1.2 9.0 7.3 10-YEAR
10-2 TRAP 1.5 1.5 4.2% 3.0 1.4 - 8.4 10-YEAR
* 11-1 TRAP 1.5 1.5 4.5% 3.0 1.6 12.0 31.2 100-YEAR
* 11-2 TRAP 1.5 1.5 5.0% 3.0 1.7 15.0 ' 34.2 100-YEAR
12 TRAP 1.5 1.5 22.5% 3.0 1.1 _ ,12.0..'' 3.1 10-YEAR
13 V-DITCH 1.5 1.5 22.5% - 1.2 - 0.2 10-YEAR
14 V-DITCH 1.5 1.5 5.6% - 1.3 - 0.5 10-YEAR
* 15 TRAP 1.5 1.5 33.0% 3.0 1.0 9:0 0.5 100-YEAR
16 V-DITCH 1.5 1.5 1.0% - 1.1 - 2.8 10-YEAR
* 17 V-DITCH 1.5 1.5 40.0% - 1.1 '" 9A 0.8 10-YEAR
* 18 TRAP 1.5 1.5 20.0% 3.0 1.8 '.15.0 ' 34.2 100-YEAR

* SEE FIGURE 2.2-3 FOR R IP RAP LO CATION

Desi n for Ditches Shown in A endix M, be innin on pa a 1 2

Flow de th includes freeboard.
TR-16
05/08