本宮砂防堰堤は,富山県の常願寺川河口より26.8km地点に位置する砂防堰堤です.
完成は昭和12年で,上流に川幅約500mの大きな堆砂域を有しており,その貯水量は
Aerial shoot of Hongu Erosion Control Dam, Toyama Prefecture, Japan.
Hongu Erosion Control Dam is located in 26.8km point than Joganji estuary of Toyama prefecture.
Completed in 1397, the upstream has a large sedimentation area of the river about 500m in, the water volume is 5million cubic meters.
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