IWMP-2 - Commissionerate of Rural Development Gujarat State ...

Detailed Project Report IWMP-2
Q = C x L x (H)3/2 Q = Design Discharge 10.20 Cumec 360.16
H = Flood Hight (=HFL - FSL) 2.00 Feet Cussec
C = Constant 3.10
L =
Q
C x H3/2
L = 41.0763 Ft.
L = 12.5233 Mtr.
Say L = 13.00 Provided Length of Waste weir
(GL)Bed RL in this reach of Body wall = 99.00 Mt
Full Supply Level (FSL) = Bed RL + Ht of Weir
Where,
+
= 99.00 1.20 FSL 100.20
FSL = 100.20 Mt. Flood Lift 0.60
HFL 100.80
HFL RL = 100.80
High Flood Level (HFL) =
HFL = FSL + Flood Lift
HFL = 100.80 Mt.
Where,
V1 = Velocity of Flow h = Height of Weir + head over crest
= 0.90 x √ (2gh) = 1.8 Mt.
h = 5.904 Ft.
V1 = 0.90 x √ (2x32.187x13.054)
V1 = 17.546 Ft/Sec g = Acceleration due to gravity
V1 = 5.348 Mtr. = 9.81 x 3.281
g= 32.187 Ft./Sec2
Gujarat State Watershed Management Agency
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