HomeMy WebLinkAboutSDP200800054 CalculationsC 9 - St Dr 64 ( /o J C I (-, X 1
Appendix 9C -12 Grate Inlet Capacity in
Sump Conditions (VDOT Version)
10
8
6
C
4
3
LLLL
0
2
w
Q
1
O
0.2
r-
a.w
0.6
0.5
0.4
0.
0.2
Or7
0. 1
P
GRATE AREA PERIMETER INLET TYPE GRATE AREA PERIMETER
TYPE So- FT FT TYPE SQ -FT FT
DI 1 2.33 9.00 DI-12 L =8'TYPE 1 9.00 20.50
TYPE II 6.67 20.50
DI-7 & DI-5 TYPE i 6.00 12.80
TYPE 111 3.25 12.80 DI-12 L =10'TYPE 1 11.24 24.50
TYPE 11 8.34 24.50
DI-9 0.36 3.66
DI-12 L =12'TYPE 1 13.50 28.50
DI-12 L =4'TYPE 1 4.50 12.50 TYPE 11 10.00 28.50
TYPE II 133 12.50
DI-12 L =14'TYPE 1 15.75 32.50
DI-12 L =6'TYPE 1 615 16.50 TYPE 11 11.68 32.50
TYPE 11 5.00 16.50
44
o
y
r
r
DI -7 TYPE 1&3 P=2.8'
1
f
DI - t P -9.00
Cam' wI
i
r
A fs o
A CLEAR OPEP41NG
r P°2 L 01. CURB)
P M 2('v + L) (V71THOUT CURB)
1 2 3 4 5 E 8 10 20 30 40 50 G0 W 100
0.(1'IAa5 DISCHARGE 0 3 (FT / S)
1,4 - I G S 5 DISCHARGE Q 9 (FT / S)
1 _ r
VDOT STANDARD GRATE DROP INLETS
INLET TYPE GRATE AREA PERIMETER INLET TYPE GRATE AREA PERIMETER
TYPE So- FT FT TYPE SQ -FT FT
DI 1 2.33 9.00 DI-12 L =8'TYPE 1 9.00 20.50
TYPE II 6.67 20.50
DI-7 & DI-5 TYPE i 6.00 12.80
TYPE 111 3.25 12.80 DI-12 L =10'TYPE 1 11.24 24.50
TYPE 11 8.34 24.50
DI-9 0.36 3.66
DI-12 L =12'TYPE 1 13.50 28.50
DI-12 L =4'TYPE 1 4.50 12.50 TYPE 11 10.00 28.50
TYPE II 133 12.50
DI-12 L =14'TYPE 1 15.75 32.50
DI-12 L =6'TYPE 1 615 16.50 TYPE 11 11.68 32.50
TYPE 11 5.00 16.50
Source: VDOT
1 of 1 VDOT Drainage Manual
Chapter 9 — Storm Drains
Appendix 9C -13 Performance Curve DI-1 in a Sump
6 00A Dro,.iA X I
LLJ
I I
1 3I . (0
rZ 5
p. 2
0, iy
0. 1
D I S' C H A P G CPS
k Ir
0 1 I'l
Source: VDOT
1 of 1 VDOT Drainage Manual
til
OPEN AREA = 2.33 FT 2
PERIMETER = 9.00 FT
1 of 1 VDOT Drainage Manual
Cha 9 - S Dra 1 t'C -i / X I
Appendix 9C -12 Grate Inlet Capacity in
Sump Conditions (VD Version)
10
c
E
4
3
v
2
WE-
2
LL 1
0
0.8
F-
WW
G 0.13
0.5
0.4
Nw
0.2
O,\
0i
0.1
1 2 3 4 5 6 8 10 20 30 40 50 60 80 100
l^!Nf Q ' O•(c5 DISNARGE Q "(FT I S)
DISCHARGE Q '(FT / S)
VDOT STANDARD GRATE DROP INLETS
INLET TYPE GRATE AREA PERIMETER INLET TYPE GRATE AREA PERIMETER
TYPE SO-FT FT TYPE SQ -FT FT
r
2.33 9.00 DI-12 L =8'TYPE 1 9.00 20.50
r
6.67 20.50
DI-7 & DI-5 TYPE !6.00 12.80
TYPE 111 3.25 12.80 D1-12 L =10'TYPE 1 11.24 24.50
ter
U
24.50
DI-9 0.36 3.66
4y
DI-12 L =12'TYPE 1 1150 28.50
DI-12 L =4'TYPE 1 4.50 12.50 TYPE II 10.00 28.50
TYPE II 3.33 12.50
r r
DI-12 L =14'TYPE 1 15.75 32.50
DI-12 L =6'TYPE 1 6.75 16.50
r
TYPE II 11.68 32.50
TYPE II 5.00 16.50
Source:VDOT
r
r
r
L
CFI -7 TYF 1 &3 P-2.8'
CURS
w
A C'LEAR OPENINGI
P - try + L { HCURB}
P = 20 + L, MrITHOUT CURB)
1 2 3 4 5 6 8 10 20 30 40 50 60 80 100
l^!Nf Q ' O•(c5 DISNARGE Q "(FT I S)
DISCHARGE Q '(FT / S)
1 of 1 VDOT Drainage Manual
VDOT STANDARD GRATE DROP INLETS
INLET TYPE GRATE AREA PERIMETER INLET TYPE GRATE AREA PERIMETER
TYPE SO-FT FT TYPE SQ -FT FT
DI-1 2.33 9.00 DI-12 L =8'TYPE 1 9.00 20.50
TYPE II 6.67 20.50
DI-7 & DI-5 TYPE !6.00 12.80
TYPE 111 3.25 12.80 D1-12 L =10'TYPE 1 11.24 24.50
TYPE II 8.34 24.50
DI-9 0.36 3.66
DI-12 L =12'TYPE 1 1150 28.50
DI-12 L =4'TYPE 1 4.50 12.50 TYPE II 10.00 28.50
TYPE II 3.33 12.50
DI-12 L =14'TYPE 1 15.75 32.50
DI-12 L =6'TYPE 1 6.75 16.50 TYPE II 11.68 32.50
TYPE II 5.00 16.50
Source:VDOT
1 of 1 VDOT Drainage Manual
Chapter 9 — Storm Drains
Appendix 9C -13 Performance Curve DI-1 in a Sump
60 - D roi n X I
I n r
1.0
L'I ,
Q , L
C:D . t
D I r C H A RG rr_ t C FSD
Source: VDOT
1 off VDOT Drainage Manual
OPEN AREA = 2.33 FT
PERIMETER = 9.00 FT
1 off VDOT Drainage Manual
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