Disaster Prevention in the Continuing Battle against a Deteriorating Mountain

Tateyama Caldera Sabo Construction

Many years ago part of the mountain that contains the Tateyama Caldera was destroyed in a massive earthquake. Half of the sediment created a large-scale debris flow that assaulted the Toyama Plain, causing catastrophic destruction. The remainder of the sediment accumulated inside the caldera, and for over 100 years, construction has continued in an effort to minimize the potential damage of this discharge. Among the most important structures is the Shiraiwa Sabo Dam, which was built in 1939. The techniques that were developed here have exerted an influence on other projects all over the world.

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  • Tateyama Caldera Sabo Construction

    Toyama and Tateyama, Toyama Prefecture

    Courtesy of Tateyama Mountain Area Sabo Office, Horkuriku Regional Development Bureau, Ministry of Land, Infrastructure, Transport and Tourism

  • Tateyama Caldera Sabo Construction

    Toyama and Tateyama, Toyama Prefecture

    Courtesy of Tateyama Mountain Area Sabo Office, Horkuriku Regional Development Bureau, Ministry of Land, Infrastructure, Transport and Tourism