Bang Lang Reservoir is a largest reservoir

Reservoir

A reservoir , artificial lake or dam is used to store water.Reservoirs may be created in river valleys by the construction of a dam or may be built by excavation in the ground or by conventional construction techniques such as brickwork or cast concrete.The term reservoir may also be used to...

 in Yala Province

Yala Province

Yala is the southernmost province of Thailand. Neighboring provinces are Songkhla, Pattani and Narathiwat. Yala is the only land-locked province in the south of Thailand...

 of Thailand

Thailand

Thailand , officially the Kingdom of Thailand , formerly known as Siam , is a country located at the centre of the Indochina peninsula and Southeast Asia. It is bordered to the north by Burma and Laos, to the east by Laos and Cambodia, to the south by the Gulf of Thailand and Malaysia, and to the...

. The reservoir is located on the Pattani River

Pattani River

Pattani River is a river in Southern Thailand, Thailand. It originates in Betong district, Yala Province and mouths into the Gulf of Thailand at the town Pattani. Within Yala province the river forms the Bang Lang Reservoir. The river has a length of 214 km....

 in Southern Thailand

Southern Thailand

Southern Thailand is a distinct region of Thailand, connected with the Central region by the narrow Kra Isthmus.-Geography:Southern Thailand is located on the Malay Peninsula, with an area around 70,713 km², bounded to the north by Kra Isthmus as the narrowest part of the peninsula. The...

.

The dam is 85 metres high with a crest of 422 metres long, and the reservoir has a capacity of 1,420 million cubic metres. It is used for irrigation, flood control as well as to produce 1,275 kW of electricity.

History

The construction of the dam was approved on April 3, 1973, and construction started in July 1976. In June 1981 the dam was completed. It was officially inaugurated on September 27, 1981 by HRH Princess Maha Chakri Sirindhorn.