Reservoir Overview & Salient Features

FeaturesTilaiyaKonarMaithonPanchet
GeneralInauguration21.02.195315.10.195527.09.195706.12.1959
RiverBarakarKonarBarakarDamodar
DistrictKodermaHazaribaghDhanbadDhanbad
StateJharkhandJharkhandJharkhandJharkhand
HydrologicalCatchment Area (km2)984997629310966
Avg. Annual Precipitation (cm)112132114114
Avg. Annual Runoff (MCM)43255527004539
StructuralTypeConcrete GravityComposite[1]Composite1Composite1
Maximum Height above foundation (m)30.1857.6056.0847.85
Overall Length (m)365.763682.034426.766777
Type of SpillwayOgeeOgeeOgeeOgee
Crest gate typeTainterTainterTainterTainter
Crest Gate Number1491215
Crest Gate Size (m x m)9.14 X 3.0510.36 X 9.9112.19 X 12.512.19 X 12.5
Undersluice typeButterflyVertical liftVertical liftVertical lift
Undersluice Number22510
Undersluice Size (m x m)1.66 X 1.022.29 m diameter1.73 X 3.051.73 X 3.05
ReservoirDead Storage Level (m) above MSL363.32410.57132.59119.48
Dead Storage (MCM)753593106
Conservation Level (m) above MSL368.81425.81146.31124.97
Conservation Storage (MCM)141175441169
Max. Utilizable Flood Management Level (m) above MSL372.47427.94150.90131.10
Flood Management Storage (MCM)16538334434
PowerInstalled Capacity4 MWNil63.5 MW80 MW
Type of TurbineVertical shaft FrancisHorizontal Shaft FrancisVertical shaft Kaplan
Maximum Head (m)19.5138.71

[1]Composite indicates Earth & Concrete Dam.

Durgapur Barrage

Year of construction1955
Length692 m
Number of gates34 (including under sluice)
Size of gates18.3m x 4.9m [60 ft x 16 ft]
Left & right under sluice18.3m x 5.5 m [60 ft x 18 ft]
Operating levelsBetween RL. 64.5 m [211.5 ft] to RL. 63.4 m [208.0 ft]

Details of Canal Network

Length (Km)Discharge at Head Regulator (Cumec)
LBMC (Left Bank Main Canal)(Canal originating from Durgapur Barrage)136.8260
RBMC (Right Bank Main Canal) (Canal originating from Durgapur Barrage)88.564.3
Total length of main and branch canals2494