PERMFILE113314

• Permit No: C1981008A
• IBM Index Class Name: Permit File
• Doc Date: 7/30/2007
• Doc Name: Collection/Diversion Ditches and Culverts Design Parameters
• Section_Exhibit Name: Section 2.05.3‎(3)‎ Attachment 2.05.3‎(3)‎-1
• Media Type: D
• Archive: Yes

• Developed
1. Data:
Drainage area :....................A = 1.3000 Acres
Runoff Curve Number :.............CN = 86
Time of Concentration:...........Tc = 0.07
Storm Type :....................... = It
Pond and swamp areas spread
throughout watershed ...........:... = 0.00 percent of A
0.0000 Acres
• 2. Frequency ........................yr = 10
3. Rainfall,P(24-hour) ..............in = 2.00
4. Initial abstraction, la............ = 0.3256
5. Compute la/P ....................... = 0.1628
6. Unit peak discharge, qu......csm/in = 984.30
7. Runoff,Q .........................in = 0.8490
8. Pond & swap adjustment factor,...Fp = 1.00
9. Peak Discharge,gp ...............cfs = 1.6975
• REVISED MARCH2O06 Attachment 2.05.3(3)-1-32