| Rajjaprabha Dam | |
|---|---|
 | |
  Location of Rajjaprabha Dam in Thailand | |
| Country | Thailand |
| Location | Ban Ta Khun District |
| Purpose | Power, irrigation |
| Status | Operational |
| Construction began | 1982 |
| Opening date | 1987 |
| Dam and spillways | |
| Type of dam | Embankment, rock-fill |
| Height | 95 m (312 ft) |
| Length | 761 m (2,497 ft) |
| Reservoir | |
| Total capacity | 5,639,000,000 m3 (4,572,000 acre⋅ft) |
| Surface area | 185 km2 (71 sq mi) |
| Turbines | 3 x 80 MW |
| Installed capacity | 240 MW |
Rajjaprabha Dam (Thai: เขื่อนรัชชประภา, RTGS: Khuean Ratchaprapha, pronounced [kʰɯ̀a̯n rát.t͡ɕʰā.prā.pʰāː]) or Cheow Lan Dam (เขื่อนเชี่ยวหลาน, RTGS: Khuean Chiao Lan, pronounced [kʰɯ̀a̯n t͡ɕʰîa̯w lǎːn]) is a multi-purpose dam in Ban Cheow Lan, Tambon Khao Phang, Ban Ta Khun District, Surat Thani Province. Its purpose is electricity generation, irrigation, flood control, and fishing. Construction started on 9 February 1982. It was inaugurated on 30 September 1987. King Bhumibol Adulyadej gave the dam the name "Rajjaprabha", meaning 'light of the kingdom'.[1]
Rajjaprabha is a rockfill dam with clay core. It is 95 meters high, 761 meters long, with a capacity of 5,639 million m3 of water, covering 185 km2. The power plant houses three 80 MW generators, totalling 240 MW of generating capacity.[1]
The lake attracts over 70,000 tourists every year. Due to its scenery, it has been called "Guilin, Thailand".[2] Much of the lake is under the supervision of Khao Sok National Park.[3][4]