Mae Klong Dam

         Once named “Vajiralongkorn Dam” by His Majesty King Bhumibol Adulyadej, the dam was later renamed “Mae Klong” by His Majesty the King in 2001.



Tha Muang District, Kanchanaburi Province


Rainwater catchment area 25,590 square kilometers
Average streamflow 9,710 million cubic meters/year


Normal pool level +22.50 meters MSL
Minimum pool level +15.00 meters MSL
Storage capacity 38.80 million cubic meters
Usable capacity 8.20 million cubic meters

Service Spillway

Type steel-reinforced concrete with radial gate
Number of floodgate 8 gates
Floodgate dimensions (width x height) 12.50 x 7.50 m

Diversion Dam

Height 14 meters
Length 150 meters


         Mae Klong Dam receives water flowing from Srinagarind Dam and Vajiralongkorn Dam for the following purposes:

  1. For agricultural purpose in rainy and dry seasons in Mae Klong water basin
  2. To nourish Mae Klong River by releasing water from Mae Klong Dam 70 cubic meters/second
  3. To divert water to Tha Chin River 1,190 million cubic meters /year
  4. For consumption by supplying water to Bangkok 45 cubic meters /second



         Mae Klong Hydropower Plant Project was the coordination on renewable energy development between Electricity Generating Authority of Thailand and Royal Irrigation Department. The project aimed to utilize the maximum use of water in the dam in compliance with power strategic plan of the Government announced in September 2003 that supported renewable energy development to reduce the fuel import.


Power Plant Building

         The power plant building is 24 meters wide, 44.50 meters long, and 25 meters high. Inside the power plant building, the two 6 MW generators, each of which consumes water for 77.4 cubic meters/second for power generation, were installed. The 22 kV transmission line with the length of 2.7 km was built to supply the produced electricity to Provincial Electricity Authority. The power plant can generate electricity of 74 million units annually (million kWh). The project budget was 919 million baht, and the construction lasted 26 months./p>



  1. Reduce the fuel use and environmental impacts
  2. Generate electricity 74 million units/year
  3. Reduce the oil import
  4. Support the research and study on electricity generation from renewable energy
  5. Add the electricity capacity in the national system
  6. Create the local employment during construction
  7. 7Improve the power system security in Tha Muang District and neighboring areas.


May 2018