Date March 14th, 2509 King. Travel to the dam Ubolrat. The Queen and Princess Ubon Ratana Kanya King. Siriwattana species Wadi. The dam was named as Ubolrat.
March 14, 1966 his Majesty Ubolratana dam is opened with the Queen and Prince that the name Ubol Rattana rajakanya Ubolratana dam siriwattana panawadee.