Heisei Ozeki Dam (平成大堰, Heisei Ōzeki damu) also translated without the redundancy as Heisei-ōzeki (Heisei Great Weir or Barrage) is a mobile barrage dam on the Yamakuni River between Kōge, Fukuoka Prefecture and Nakatsu, Ōita Prefecture in Japan.

[1] It was constructed in phases for flood control and water supply purposes and fully completed in 1991.

[2]

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