Claim: Amagase Dam (construction completed 1964) is 73 m (240 ft) tall with a surface area of 1.9 km and withholds a reservoir
Evidence: Construction on the dam began in 1955 and it was complete in 1964. 73 m (240 ft) 1.9 km (1 sq mi) The dam withholds a reservoir called Lake Hōō (鳳凰湖, Hōō-ko, lit.