Reservoir Overview & Salient Features

Features Tilaiya Konar Maithon Panchet
General Inauguration 21.02.1953 15.10.1955 27.09.1957 06.12.1959
River Barakar Konar Barakar Damodar
District Koderma Hazaribagh Dhanbad Dhanbad
State Jharkhand Jharkhand Jharkhand Jharkhand
Hydrological Catchment Area (km2) 984 997 6293 10966
Avg. Annual Precipitation (cm) 112 132 114 114
Avg. Annual Runoff (MCM) 432 555 2700 4539
Structural Type Concrete Gravity Composite[1] Composite1 Composite1
Maximum Height above foundation (m) 30.18 57.60 56.08 47.85
Overall Length (m) 365.76 3682.03 4426.76 6777
Type of Spillway Ogee Ogee Ogee Ogee
Crest gate type Tainter Tainter Tainter Tainter
Crest Gate Number 14 9 12 15
Crest Gate Size (m x m) 9.14 X 3.05 10.36 X 9.91 12.19 X 12.5 12.19 X 12.5
Undersluice type Butterfly Vertical lift Vertical lift Vertical lift
Undersluice Number 2 2 5 10
Undersluice Size (m x m) 1.66 X 1.02 2.29 m diameter 1.73 X 3.05 1.73 X 3.05
Reservoir Dead Storage Level (m) above MSL 363.32 410.57 132.59 119.48
Dead Storage (MCM) 75 35 93 106
Conservation Level (m) above MSL 368.81 425.81 146.31 124.97
Conservation Storage (MCM) 141 175 441 169
Max. Utilizable Flood Management Level (m) above MSL 372.47 427.94 150.90 131.10
Flood Management Storage (MCM) 165 38 334 434
Power Installed Capacity 4 MW Nil 63.5 MW 80 MW
Type of Turbine Vertical shaft Francis - Horizontal Shaft Francis Vertical shaft Kaplan
Maximum Head (m) 19.51 - 38.71

[1]Composite indicates Earth & Concrete Dam.

Durgapur Barrage

Year of construction 1955
Length 692 m
Number of gates 34 (including under sluice)
Size of gates 18.3m x 4.9m [60 ft x 16 ft]
Left & right under sluice 18.3m x 5.5 m [60 ft x 18 ft]
Operating levels Between 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) 136.8 260
RBMC (Right Bank Main Canal) (Canal originating from Durgapur Barrage) 88.5 64.3
Total length of main and branch canals 2494 -