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Narmada Water Resources ,Water Supply and kalpsar department (Water Resources) home
 
 
 
Ranghola Water Resources Project
         
  Ranghola  
Information
Location Vill. : Ranghola Ta.: Umaria, Dist. : Bhavnagar
Purpose Irrigation
River Rangholi
Area of catchment 370 km2
Mean annual runoff in the  catchment 37.245 Mm3
Mean annual rainfall 557  mm
Year of commencement of construction work 1946
Year of completion 1952
 
       
 
Dam
Type  Earthen
Bed Rock Hard rock
Maximum height above the
lowest point of foundation
24 m
Length at the top of the dam 1952 m 
Total Volume Content:
Concrete 0.0012  Mm3
Masonry 0.041 Mm3
Earthwork 0.185  Mm3
 
Reservoir
Area at full reservoir level 11.62 Km2
Gross storage capacity 44.547   Mm3
Effective storage capacity 42.89    Mm3
Area under submergence
a) Forest b) Waste land c) Culturable
a)  Nil b)  600ha c)  632  ha
No. of villages under submergence 2  full
 
         
 
Spillway
Type Broad crested weir
Length 549 m
Energy dissipater Stilling basin
Maximum discharge 2394 m3/s
Type, Nos. and  size of gate Automatic 47  (10. 98  x 1.55  m)
 
Canal
Length of canal 45.93 km (Right), 6.48 (Left) km
Capacity 0.5 (Right) 4.245 (Left)  m3/s
Gross command area 17415  ha
Culturable command area 10125  ha
 
         
 
Villages under command
a) District b) Taluka c) No. of villages
Bhavnagar Umrala 18
  Sihor 2
  Total 20
 
Cost
Estimated cost Rs. 63.42   lacs

Geology
Name of Scheme District Rock type encountered at the dam site
Ranghola Bhavnagar Hard rock
Irrigated area in the last five years
Year Irrigated area (In hectors)
2008-09 1639.1
2009-10 0
2010-11 2044.47
2011-12 3491.3
2012-13 0
 
         
 
Name of scheme River Village Taluka Dist. Catchment Area (Sq.Kms) Yield (MCM) Maximum observed flood (Cumecs)
Gujarat Other Maximum Average
Ranghola Ranghola Ranghola Umarala Bhavnagar 370.77 - 27.92 22.94 142

Date Crest R.L. (M.) F.R.L. (M) H.F.L. (M) Top of Dam R.L.(M) Gross Capacity at F.R.L. (MCM) Dead storage (MCM) Live storage (MCM) Lenth of Spillway (M)
26/09/2007 60.98 62.52 62.83 64.94 36.81 0 36.81 548.78

Type of Spillway Details of Gates Lenth of Auxilary Spillway (M) Left Bank Canal Right Bank Canal Year of Completion
Types Nos. Lenth K.M. Discharge Capacity (Cumecs) Length K.M. Discharge Capacity (Cumecs)
- Auto map 10.96X1.52 47   26 4.25 6.5 4.24 1952

G.C.A. (Ha) C.C.A. (Ha) Maximum Irrigation
Year Area
17415 7150 2007-08 1588