2010-04-15_PERMIT FILE - C1981018 ‎(5)‎

• Permit No: C1981018
• IBM Index Class Name: Permit File
• Doc Date: 4/15/2010
• Doc Name: D Portal Area Sediment Pond & Diversion Ditch Design Calculations
• Section_Exhibit Name: Illustration 07
• Media Type: D
• Archive: No

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forb. MaCOn & t Ptah Inc. a SF 06
thauruu CONATOucrosu SITE PREPARATION & DRAINAGE REV. 1
&•LT u'e crry. LIT AN STANDARD FORM
RUNOFF & SEDIMENT CALCULATIONS 9/80
SHT.I:aOF 12
DETERMINATION OF SEDIMENT VOLUME, SETTLING VOLUME
AND TOTAL STORAGE VOLUME OF SEDIMENTATION PONDS
PROJECT JOB NO. L)C- -34(,
SeCJi�rtEtJT AT�or -t '��O f�r2 O • Porz -nom POND NO. D Imo' I
BY v..)n, 7311CK,c IU b 9u CHECKED BY DATE
7. Ditch Velocity /Design SPILLWAY (3ELow GotJTlzO 56C;TooP
A. Ditch Location ( See Sht._and Owg. G- ?4!a - G- I i 0 I
B. Ditch Characteristics :
SOIL 4 C�Rh�S Zip +ZA7
1. Manning's No. = 0.0 0.04•
2. Slope= 2 ° /, y Ta IZ $ `�e
3. Ditch cross- section (sketch + dimensions)
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•
EI �
� 1
' I 1
U�E ty� Qlp -RAP ENTIFCE LF:r�c
I 1.1W. DEP7A �'fo;AL,) i.5 Loyare¢ Poe-T:Orl
C. Design Discharge: 4b • ds (See Section 6)
D. Computed Flow Velocity: ` EE QEK 7146E'f
(based on Olcfs) = 149 A R
Depth D ft.
Area A _fj.2
Wetted Perimeter W ft.
Hydraulic Radius R h.
Slope S h. per ft.
Flow Q ds
Uniform Flow Velocity = O/A ft. /see.