2015-08-31_PERMIT FILE - C1981010A ‎(16)‎

• Permit No: C1981010A
• IBM Index Class Name: Permit File
• Doc Date: 8/31/2015
• Doc Name: page 4-172 to 4-222z
• Section_Exhibit Name: 4.8 Hydrologic Impacts
• Media Type: D
• Archive: Yes

• Table 4.8-3. Diversion ditch sizing.
* Diversion carrying runoff from undisturbed areas.
(1) Peak flow for 10 -year, 24-hour precipitation event (1.4" of rain)
(2) Diversion bottom width
(3) Flow depth D = ( Qn )0.375 (Manning's n = 0.03)
Ksv2
(4) Flow velocity v = Q/A
(5) Manning's n = 0.06
Fr4$-31 00103
4-177 Revision;
Hpprovecf:
Peak Flow
b
D
Slope
v
Diversion
(cfs)(1)
(ftx2)
(ftx3)
(ft/ft)
fps(4)
Far East Buzzard No. 1
0.7
0
0.44
.02
1.5
East Pyeatt No. 3
51.0
17.0
0.45
.05
6.3
South No. 3
0.1
1.1
0.05
.07
1.7
South No. 4
8.2
1.0
0.66
.04
5.3
Deer No. 1
5.0
2.0
0.35
.07
5.3
No Name No. 1 *
N/A
0
0.25
.03
N/A
No Name No. 2*
N/A
0
'0.25
.02
N/A
West Pyeatt No. 1
72.0
12
0.43
.156
13.04
West Flume No. 1
18.0
0
1.32(5)
.03
3.4
West Flume No. 2
14.9
0
1.17(5)
.04
3.5
Horse
1.0
0
0.47
.096
2.2
East Middle Flume A98-3
.08
• East Flume
* Diversion carrying runoff from undisturbed areas.
(1) Peak flow for 10 -year, 24-hour precipitation event (1.4" of rain)
(2) Diversion bottom width
(3) Flow depth D = ( Qn )0.375 (Manning's n = 0.03)
Ksv2
(4) Flow velocity v = Q/A
(5) Manning's n = 0.06
Fr4$-31 00103
4-177 Revision;
Hpprovecf: