2012-05-30_PERMIT FILE - C1981012A ‎(2)‎

• Permit No: C1981012A
• IBM Index Class Name: Permit File
• Doc Date: 5/30/2012
• Section_Exhibit Name: Section 2.05 Operation and Reclamation Plan
• Media Type: D
• Archive: Yes

Table 21
Culvert Sizing
Culvert Number
10 -24 Hour
Minimum
Comments
Peak Discharge (CF S
Diameter Inches
41
108
48
TR -22 100 Yr 24 HR Revised 11/16/1990
43 **
7.3
18
MR- 401/92
44 **
7.3
18
MR- 401/92
45
2.62
15
TR -28 9/93
46
2.26
12
TR- 3112/3/93
47
2.61
15
TR- 2710/15/93
48
49.84
42
TR- 2710/15/93
49
54.05
42
TR- 2710/15/93
50
4.05
18
TR- 2710/15/93
51
55
42
TR- 2710/15/93
52
48.59
36
TR- 2710/15/93
53
6.4
21
TR- 2710/15/93
54
75.51
48
TR- 2710/15/93
55
1.01
8
May-95
56
4.39
18
57
51.22 (7)
1 @48" or 2 @33"
May -95
58
1.45
12
May-95
59
4.81
18
TR -55 03/11
60
12.38 (7)
24
May -95
61
0.95
8
May-95
62
0.68
12
Sep-95
63
1.28
12
Sep-95
64
8.75
24
65
0.1
12
66
0.43
12
TR -55 03/11
67
2.23
18
TR -55 03/11
68
2.67
18
TR -55 03/11
69
3.76
18
TR -55 03/11
70
4.3
18
TR- 6012/11
71
1.03
12
TR -60 11 /11
72
8.75
24
TR- 6012/11
73
8.75
24
TR- 6012/11
74
8.75
24
TR- 6012/11
75 **
52.05
42
TR -62 01/12
76 **
52.05
42
TR -62 01/12
RDA -A
2.31
12
TR -28 9/93
RDA•B
4.02
15
TR -28 9/93
Relief Drains
(1)
From "Handbook of Steel Drainage and Highway Construction Products"
nomograph with no head on pipe and using HW /D Scale No. (3).
(2)
Sized using 3ft. of head on pipe (HW /D =1.5), HW /D Scale No. (1).
(3)
Sized using 2.4 ft. of head on pipe (HW /D = 1.8), HW /D Scale No. (3).
(4)
Culverts 23 & 24 are inlet culverts to Culvert 25. Culvert 25 was sized using the
Hazen - Williams formula Exhibit 19,West Portal Data C21 through C -25.
(5)
Sized using 3ft. of head on pipe (HW /0 = 1.5), HW /D Scale No. (1).
(6)
AS built 3/27/88 SDM
(7)
100 -year 24 -hour peak discharge. Temporary culverts installed as needed.
"
'Temporary culverts installed as needed
TR -62 2.05 -14A 01/04/12