1989-10-10_REVISION - M1988112 ‎(7)‎

• Permit No: M1988112
• IBM Index Class Name: Revision
• Doc Date: 10/10/1989
• Doc Name: APPENDIX H DIVERSION DITCH DESIGN CALCULATIONS
• Type & Sequence: AM1
• Media Type: D
• Archive: No

********** STORM HYDROGRAPH GENERATED FROM START OF RAINFALL ***********
TIME * 0.0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.5
**************#***#****#***ir**********#•ieie#ie***********#nF*******##**#*#***#i
.0 * .0 .0 .0 .0 .0 .0 .0 .0 .0 .C
1.0 * .0 .0 .0 .0 ,0 .0 .0 .0 .0 .C
2.0 * .0 .0 .0 .0 .0 .0 .0 .0 .0 .C
• 3.0 * .0 .0 .0 .0 ,0 .0 .0 .0 .0 .C
4.0 * .0 .0 .0 .0 .D .0 .0 .0 .0 .C
5.0 * .0 .0 .0 .0 .0 .0 .0 .0 .0 .C
6.0 * .0 .0 .0 .0 .0 .0 .0 .0 .0 .0
7.0 * .0 .0 .0 .0 .0 .0 .0 .0 .0 .0
8.0 * .0 .0 .0 .0 .0 .0 .0 .0 .0 .0
9.0 * .0 .0 .0 .0 .0 .0 .0 .0 .0 .0
10.0 * .0 .0 .0 .0 .0 .0 .0 .0 .0 .0
11.0 * .0 .0 .0 .0 .0 .0 .0 .2 .8 1.7
12.0 * 3.2 2.7 .6 .4 .4 .4 .4 .4 .4 .4
13.0 * .4 .4 .4 .4 .4 .4 .4 .4 .4 .4
14.0 * .3 .3 .2 .2 .2 .2 .2 .2 .2 .2
15.0 * .2 .2 .2 .2 .2 .2 .2 .2 .2 .2
16.0 * .2 .2 .2 .2 .1 .1 .1 .1 .1 .1
17.0 * .1 .1 .1 .1 .1 .1 .1 .1 .1 .1
18.0 * .1 .1 .1 .1 .1 .1 .1 .l .1 .1
19.0 * .1 .1 .1 .1 .1 .1 ,1 .1 .1 .1
20.0 * .1 .1 .1 .1 .1 .1 .1 .1 .1 .1
21.0 * .1 .1 .1 .1 .1 .1 .1 .1 .1 .1
22.0 * .1 .1 .1 .1 .1 .1 .1 .1 .1 .1
23.0 * .1 .1 .1 .1 .0 .0 .0 .0 .0 .0
24.0 * .0
INITIAL ABSTRACT ION 21.77 mm.
• ROUTED FLOW TIME FROM THE SUBWATERSHED =
_ .15 hours.
TIME TO PEAK OF UNIT HYDROGRAPH .08 hours.
THE DEPTH OF WATER ON WATERSHED = 16.81 mID.
VOLUME OF RUNOFF = 10.07 thousand cu .m.
PEAK RUNOFF RATE = 3.76 cu, m./sec.
TIME TO PEAK RUNOFF = 12.05 hours.
THERE IS NO SEDIMENT CONTAINED IN THE STORM RUNOFF FROM T1HIS

•