HomeMy WebLinkAboutSDP200800127 Calculations 2009-10-1511/
5/2009
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I I
BASED ON 100 -YEAR DESIGN FLOW FREQUENCY
MANNING'
S "n" = 0.
010
UPGRADED PIPE SIZE
I
SEQUENTIALl
No. UNIT
UPPER STRUCT.
TYPE STRUCT.
LOWER STRUCT.
TYPE STRUCT.MANNiNG'
S
n"
DRAINAGE
AREA
AC.)
RUN -OFF
COEFF
C
CA
INCRE- ACCUM-
ME ULATED
LOCAL
Tc
MIN.)
RAINFALL
INTENSITY
I (IN /HR)
RUNOFF
Q)
CFS)
INVERT ELEVATION
UPPER END LOWER END
FT) (FT)
LENGTH
FT)
SLOPE
ACTUAL)
UNIT /UNIT)
SLOPE
MIN. REQ'
D)
UNIT /UNIT)
MIN. DIA. REQ'
D
AT ACTUAL SLP.
IN)
D{
A.
ACTUAL
IN)
CAPACITY
CFS)
VELOCITY
FPS)
FLOW TIME (MIN.)REMARKS
INC.
N: \PROJECT FILES \0909 SOCA INDOOR FACILITY \0817 DESIGN \ENGINEERING \STORM DRAIN ANALYSIS 1 OF 1
DRAINAGE RUN -OFF CA LOCAL RAINFALL RUNOFF INVERT ELEVATION LENGTH SLOPE SLOPE MIN. DIA. REQ'
D DIA. CAPACITY VELOCITY FLOW TIME (MIN.) REMARKSDENTPIPEUPPERSTRUCT.LOWER STRUCT.
No.UNIT TYPE STRUCT.TYPE STRUCT.MANNING'S AREA COEFF INCRE-ACCUM-Tc INTENSITY Q)UPPER END LOWER END FT)ACTUAL)MIN. REQ'
D)AT ACTUAL SLP.ACTUAL CFS)FPS)INC.
n"AC.)C MENT ULATED MIN.)I (IN /HR)CFS)FT)FT)UNIT /UNIT)UNIT /UNIT)IN)IN)
1.
00
1.
00 Cistern Outlet TO Existing Inlet 0,
01 G 80 0.
90 1 0.
77 0 77 2.
90 1 476,
25 1 472.
85
98,
90 1 3.
44%0 1185% 1 8.0
15.
O0
15.
6
2.
4
0.
70 OK
N: \PROJECT FILES \0909 SOCA INDOOR FACILITY \0817 DESIGN \ENGINEERING \STORM DRAIN ANALYSIS
1 OF 1