Dukan (Dokan) Dam | |
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Location | As Sulaymaniyah Governorate, Kurdistan Region |
Coordinates | 35°57′15″N 44°57′10″E / 35.95417°N 44.95278°E |
Status | Operational |
Construction began | 1954 |
Opening date | 1959 |
Operator(s) | Ministry of Water Resources |
Dam and spillways | |
Type of dam | Cylindrical arch |
Impounds | Little Zab |
Height | 116.5 m (382 ft) |
Length | 360 m (1,180 ft) |
Elevation at crest | 516 m (1,693 ft) |
Width (crest) | 6.2 m (20 ft) |
Width (base) | 34.3 m (113 ft) |
Dam volume | 370,000 m3 (480,000 cu yd) |
Spillways | 2 |
Spillway type | Service: Tunnel Emergency: Bell-mouth |
Spillway capacity | Service: 2,450 m3/s (86,521 cu ft/s) Emergency: 1,860 m3/s (65,685 cu ft/s) |
Reservoir | |
Creates | Lake Dukan |
Total capacity | 6,970,000,000 m3 (5,650,671 acre⋅ft)[1] |
Active capacity | 6,100,000,000 m3 (4,945,350 acre⋅ft) |
Inactive capacity | 790,000,000 m3 (640,463 acre⋅ft) |
Catchment area | 11,690 km2 (4,514 sq mi) |
Surface area | 270 km2 (104 sq mi) |
Normal elevation | 511 m (1,677 ft) |
Power Station | |
Commission date | 1979 |
Hydraulic head | 95 m (312 ft) (rated) |
Turbines | 5 x 80 MW Francis-type[2] |
Installed capacity | 400 MW |
The Dukan Dam (Sorani Kurdish: بەنداوی دووکان Arabic: سد دوكان) is a multi-purpose concrete arch dam in As Sulaymaniyah Governorate, Kurdistan Region of Iraq. It impounds the Little Zab, thereby creating Lake Dukan. The Dukan Dam was built between 1954 and 1959 whereas its power station became fully operational in 1979. The dam is 360 metres (1,180 ft) long and 116.5 metres (382 ft) high and its hydroelectric power station has a maximum capacity of 400 MW.