PERMFILE105841

• Permit No: C1981048
• IBM Index Class Name: Permit File
• Doc Date: 12/11/2001
• Section_Exhibit Name: EXHIBIT V-3
• Media Type: D
• Archive: No

Ditch Desk
• 1. Ditch: 22-D6
(wised 10/3/80)
2• L~scription: Diversion Ditch
3. Ditch Grade: 3 percent
4• Area Drained; 99.3 acres
5. Peak Discharge: (93)(1.12)(1.11) ~ 115.6
6. Ditch i~sign:
Ditch i.i n i nq Rxk
n = .045
Use d1Zch W/"V" walls 1:2 slope
A = 2
P = 4.472D
~ _ ~ _ .4472D
4 = (1.49/n)(A)(RH)2/3(S1/2)
•
D = 2.67 4
38.39 (S)•
D = 2.67 115.6
38.39 .03)•
D = 2.91 feet deep
Use 3~ feet deep with freeboaRl.
•