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Vachiralongkorn Dam

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Vajiralongkorn Dam Was originally called Khao Laem Dam It is the first stone filling dam in Thailand that is coated with reinforced concrete. Located on the Kwai Noi River Is a multi-purpose dam with the main objective of generating electricity Built to block the Kwai Noi River in Tha Khanun Subdistrict Thong Pha Phum District Karnchanaburi The reservoir is located in Thong Pha Phum district and Sangkhla Buri district, Kanchanaburi. Construction started in March 1979 The dam has a capacity of 8,860 million cubic meters. The average amount of water flowing into the basin is 5,369 million cubic meters per year. Install 3 generators in the discharge area. The capacity of 100,000 kilowatts, total production capacity of 300,000 kilowatts, gives an average of 760 million kilowatt hours of electricity per year.

Location Thong Pha Phum District, Kanchanaburi Province

Dam Features

Type Rockfill dam with concrete facing slab
Height 92 meters
Crest length 1,019 meters
Crest width 10 meters
Reservoir area 388 square kilometers
Reservoir storage capacity 8,860 million cubic meters
Generating Capacity
Vajiralongkorn Power Plant houses three 100 MW conventional hydroelectric generating units, totaling 300 MW of installed capacity.

Vajiralongkorn Dam, known formerly as Khao Laem Dam is a multi-purpose dam under the Development of Mae Klong River Basin Project. The result of the feasibility study conducted by the Electricity Generating Authority of Thailand (EGAT) and foreign experts revealed that the Khao Laem area in Tha Khanun Sub-district, Thong Pha Phum District was an appropriate site for a dam construction.
The opening ceremony of the dam was performed by His Majesty King Bhumibol Adulyadej accompanied by Her Royal Highness Princess Maha Chakri Sirindhorn and Her Royal Highness Princess Chulabhorn on January 9, 1986. Since 2001, the dam has been named “Vajiralongkorn” after the Crown Prince Maha Vajiralongkorn (presently His Majesty King Maha Vajiralongkorn Bodindradebayavarangkun.)


At Vajiralongkorn Dam, we offer the visitors comfortable accommodation with full facilities at an affordable price. There is a choice of guest rooms and houses available to suit visitor needs.

Ruen Khao Lam Restaurant is located amid beautiful view of mountains and fields. It can accommodate 200 visitors. The parking lot is available for 30 cars. The recommended menus are Asian redtail catfish tom yum and fried giant gourami fish with garlic.

Other Facilities
Swimming pool, tennis court, football field, futsal field, shooting range.