首都圈
The Akaya River and Kawafuru Hot Springs upstream of Aimata Dam were singled out, and plans were brought forth for the newer "Kawafuru Dam" on the Akaya River. The concrete gravity dam was to be built at Kawafuru to a height of 131.0 meters, with flood control storage of 46,000,000 tons of water, appropriating water to municipal and industrial water systems and helping to alleviate water shortages in the Capital region.