Bang Lang Dam
| Bang Lang Dam | |
|---|---|
 Dam location in Thailand
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| Country | Thailand |
| Location | Yala Province |
| Coordinates | 6°9′23″N 101°16′25″E / 6.15639°N 101.27361°ECoordinates: 6°9′23″N 101°16′25″E / 6.15639°N 101.27361°E |
| Purpose | Multi-purpose |
| Status | Operational |
| Construction began | July 1976 |
| Opening date | 27 September 1981 |
| Construction cost | US$133.13 million |
| Owner(s) | Electricity Generating Authority of Thailand (EGAT) |
| Dam and spillways | |
| Type of dam | Earth fill dam |
| Impounds | Pattani River |
| Height (foundation) | 85 m (279 ft) |
| Length | 430 m (1,410 ft) |
| Elevation at crest | 120 m (390 ft) |
| Width (crest) | 10 m (33 ft) |
| Reservoir | |
| Creates | Bang Lang Reservoir |
| Total capacity | 1,420,000,000 m3 (5.0×1010 cu ft) |
| Catchment area | 2,080 km2 (800 sq mi) |
| Power station | |
| Operator(s) | Electricity Generating Authority of Thailand (EGAT) |
| Turbines | 3 x 24 MW Francis-type |
| Installed capacity | 72 MW |
| Annual generation | 200 GWh |
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Website Bang Lang Dam at EGAT |
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The Bang Lang Dam (Thai: เขื่อนบางลาง), also known as the Pattani Dam, 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. The dam and its accompanying power plant were developed as part of the Pattani Project.
Bang Lang Dam is an earth core rockfill dam. It is 430 m (1,410 ft) long and 85 m (279 ft) high. Its reservoir has a maximum storage capacity of 1,420,000,000 m3 (5.0×1010 cu ft) with a catchment area of 2,080 km2 (800 sq mi).
The dam is considered multi-purpose supporting electricity generation, irrigation, flood control, fisheries and recreation activities.
The dam's power plant has three hydroelectric Francis turbine-generating units, each with an installed capacity of 24 MW. A nearby mini hydroelectric project at Ban Santi has a 1.275 MW generating unit and is also part of the Pattani Project. The combined annual power generation is 200 GWh.
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