Bang Lang Dam

Bang Lang Dam
Dam looking to Pattani River
Dam location in Thailand
CountryThailand
LocationBannang Sata, Yala
Coordinates6°9′23″N 101°16′25″E / 6.15639°N 101.27361°E / 6.15639; 101.27361
PurposeMulti-purpose
StatusOperational
Construction beganJuly 1976 (1976-07)
Opening date27 September 1981 (1981-09-27)
Construction costUS$133.13 million
Owner(s)Electricity Generating Authority of Thailand
Dam and spillways
Type of damEarth fill dam
ImpoundsPattani River
Height (foundation)85 m (279 ft)
Length430 m (1,410 ft)
Elevation at crest120 m (390 ft)
Width (crest)10 m (33 ft)
Reservoir
CreatesBang Lang Reservoir
Total capacity1,420,000,000 m3 (5.0×1010 cu ft)
Catchment area2,080 km2 (800 sq mi)
Power Station
Operator(s)Electricity Generating Authority of Thailand
Turbines3 x 24 MW Francis-type
Installed capacity72 MW
Annual generation200 GWh

The Bang Lang Dam (Thai: เขื่อนบางลาง, RTGS: Khuean Bang Lang, pronounced [kʰɯ̀a̯n bāːŋ lāːŋ]), also known as the Pattani Dam (เขื่อนปัตตานี, RTGS: Khuean Pattani, pronounced [kʰɯ̀a̯n pàt.tāː.nīː]), is a multi-purpose hydroelectric dam in the Bannang Sata District of Yala Province, Thailand. It was the first multi-purpose dam developed in Thailand's southern region. The dam impounds the Pattani River, creating the Bang Lang Reservoir. The dam and its accompanying power plant were developed as part of the Pattani Project.