High Quality Content by WIKIPEDIA articles! Vajiralongkorn Dam, formerly named the Khao Laem Dam, is a concrete-face rock-fill dam (CFRD) in Thong Pha Phum district in Kanchanaburi, Thailand. The dam lies across the Khwae Noi River (River Kwai) and was renamed Vajiralongkorn Dam after Crown Prince Maha Vajiralongkorn on July 13, 2001. Vajiralongkorn Dam is Thailand`s first CFRD and supplies a 300 MW hydroelectric power station with water.