Sannoumi Dam

Shiwa Town

Central Iwate

    The dam is located upstream of the Takinagawa River and is a scenic spot with fresh greenery in the spring and autumn leaves in the fall.With a storage capacity of approximately 38.4 million tons, it is the largest agricultural rockfill dam in Japan. In addition, it is a "parent-child dam" connected by two tunnels to the neighboring Kuzumaru Dam (water storage capacity of 5 million tons) in Ishidoriya-cho, Hanamaki City. It moistens the rice fields. Open to the public (May to November) 2nd Saturday and 3rd Wednesday 9:00-noon

    Location
    Tsuchidate, Shiwa Town, Shiwa District, Iwate Prefecture 028-3441
    Inquiries
    Sannokai Land Improvement District
    Phone number 019-673-7311
    FAX number 019-673-7360
    Other
    parking
    Highlights [Mid-October to early November] Best time to see autumn leaves

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