Mae Ngat Sombun Chon Dam, Earth fill dam in Mae Taeng District, Chiang Mai Province, Thailand

Mae Ngat Somboon Chon Dam is an earth fill dam in Mae Taeng District, Chiang Mai Province, Thailand. It stretches 1,950 meters (6,400 feet) across the Mae Ngat River and stands 59 meters (194 feet) high, creating a reservoir that holds up to 265 million cubic meters (9.4 billion cubic feet) of water.

Construction of the dam began in 1977 and was completed in 1984, following a major flood in 1973 that led King Bhumibol Adulyadej to propose the project. The hydropower plant was added in 1985, and the dam was officially inaugurated in 1986.

The reservoir is a popular spot for locals and visitors who come to eat at the floating restaurants and relax on rafts. The name Somboon Chon was given by King Bhumibol Adulyadej, and the dam remains a symbol of his initiative to improve the lives of farmers in the region.

The dam is reached from Highway 107 at about kilometer 41, then a right turn leads to the site after roughly 11 kilometers. Visitors can drive to the dam and find parking near the crest, where the views over the water and surrounding hills are easy to enjoy.

The dam's reservoir is stocked with fish, and local families often set up floating cages to raise them. The catch supports a small fishing industry that supplies markets around Chiang Mai.