Introduction of facilities > Kyu-Yoshinogawa Estuary Barrage
Kyu-Yoshinogawa Estuary Barrage
The Kyu-Yoshinogawa Estuary Barrage is located in Nakagirai, Matsushige Town (both of the right and left banks), which is closer to the sea than the Imagiregawa Estuary Barrage and close to Tokushima Airport.
The estuary barrage consists of one lock gate to let ships through, five water control gates, one regulating gate and two fishways on the right and left sides.
Location | Right bank | Nakagirai, Matsushige Town, Itano-gun, Tokushima |
---|---|---|
Left bank | Same as above | |
Estimated high-water level | T.P. + 2.947 m | |
Estimated high-water discharge | 800 m3/sec. | |
Barrage length | 192.3 m (movable part: 178.3, fixed part: 14.0) | |
Barrage height | T.P. + 1.767 m | |
Foundation height | T.P. - 5.533 m | |
Water gate length | 168.3 m | |
Water gate | Gate | Flood control gate 1 over flow shell type double leaf wheel gate 25.0m in span x 7.3m in height Regulating gate: 5 steel shell type wheel gates 25.0m in span x 7.3m in height |
Lock gate | Effective width x length |
7.3 m x 25.0 m |
Gate | 2 wheel gates 7.3m in span x 7.3m in height |
|
Fishway | Gate | 2 flap gates 5.5m in span x 1.812m in upright height |