Video Library
Yanba Dam - Naganohara, Agatsuma District, Gunma Prefecture, Japan
Watch a video of pipe laying work for regular use flood discharge pipes
** Provided by Yanba Dam Construction Office, Ministry of Land, Infrastructure, Transport and Tourism (temporary)
Purpose of facility
Yanba Dam is a multipurpose dam at Naganohara, Agatsuma District, Gunma Prefecture on Agatsumagawa River, a tributary of the Tone River. It secures a new mains water and industrial water supply and offers power generation while providing flood control and maintaining the normal water flow.
Construction is still under way and should be completed in 2019.
Outline of construction project
[Model] | Main gate: High-pressure radial gate Reserve gate: High-pressure slide gate |
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[Dimensions] | Main gate: 4.85 m clear span x 4.85 m effective height Reserve gate: 7.525 m clear span x 8.162 m effective height |
[Number of Gates] | 2 |