Powersite Dam is a hydroelectric dam that went into service in 1913 in Forsyth, Missouri. It is found along the White River, and the reservoir it forms is Lake Taneycomo. It is the first hydroelectric dam built in Missouri. It was designed in 1911 by Nils F. Ambursen. Powersite was the largest concrete buttress dam of its kind. The dam is still privately owned by the Empire District Electric Company.