The Lampao Dam is an earthen dam, 33 metres high and 7.800 metres long with a width of 8 metres. Construction began in 1968 to contain the flow of both the Pao and Huay Yang Rivers at Ban Nong Song Hong creating a reservoir on the northern side of each river. A canal was then built to connect the two reservoirs creating a total capacity of 1,430 cubic metres. The dam helps in flood prevention and with irrigation for farmland. It also provides a source for fish breeding. The reservoir is a tourist attraction and Dok Ked Beach has become especially popular with northeastern locals.