2010-09-02_PERMIT FILE - C1981012A

• Permit No: C1981012A
• IBM Index Class Name: Permit File
• Doc Date: 9/2/2010
• Section_Exhibit Name: Section 2.05 Operation and Reclamation Plan
• Media Type: D
• Archive: Yes

Table 21
Culvert Sizing
• 10YR - 24 HR Minimum Culvert
Culvert Number Peak Discharge (CFS) Diameter (Inches) Comments
49 54.05 42 TR-2710/15/93
50 4.05 18 TR-2710/15193
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 5/95
56 4.39 18
57 51.22m 1 @48" or 2@33" 5/95
58 1.45 12 5/95
59 1.45 9 5/95
60 12.38~r 24 5/95
61 0.95 8 5/95
62 0.68 12 9195
63 1.28 12 9/95
64 8.75 24
65 0.1 12
RDA-A 2.31 12 TR-28 9/93
RDA-B 4.02 15 TR-28 9/93
Relief Drains
S. of D346 0.5 24" Half Culvert TR-27 10/15/93
•
~'i From "Handbook of Steel Drainage and Highway Construction Products"
nomograph with no head on pipe and using HW/?D Scale No. (3).
ts> Sized using 3 ft, of head on pipe (HW/D = 1.5), HW/D Scale No. (1j.
~'~ Sized using 2.4 ft. of head on pipe (HW/D = 1.8), HW/D Scale No. (3).
i4r 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.
ts~ Sized using 3 ft. of head on pipe (HW/D = 1.5), HW/D Scale No. (1).
ceJ AS built 3/27/88 SDM
~~ 100-year 24-hourpeak discharge.
'* Temporary culverts installed as needed.
SL-02 2.05-14A
(Revised 8/5/06}