Seawalls Reduce Tsunami Damage, Study Says

Researchers who analyzed a history of tsunamis along the Pacific coast of Japan’s Tohoku region have learned that seawalls higher than 5 meters reduce damage and death, while coastal forests also play an important role in protecting the public.

The analysis was performed by researchers at Tohoku University, Maryland Institute College of Art, the University of Michigan and Purdue University.

The researchers studied data from tsunamis in 1896, 1933, 1960 and 2011.

“These events have caused large loss of life and damage throughout the coastal region, and there has been uncertainty about the degree to which seawalls reduce deaths and building damage,” said Jeremy D. Bricker, an associate professor in the International Research Institute of Disaster Science at Tohoku University in Japan.

The Japanese have embarked on a 10-year reconstruction project costing about 31.5 trillion yen, or about $255 billion, which includes the construction of tsunami seawalls along Tohoku’s Pacific coast.

The heights and construction methods of sea walls vary widely from one community to another, and even within the same town.

Findings also showed the protective value of coastal “tsunami control” forests.

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3rd International Congress Hydraulic Engineering Structures and Dredging

Russia’s leading maritime industry Media Group PortNews (www.portnews.ru) holds a traditional annual Congress “Hydraulic Engineering Structures and Dredging” in Moscow. 

The two-day Congress includes the 7th International Forum of Dredging Companies and the 3rd Technical Conference “Modern Solutions for Hydraulic Engineering”.

Infrastructure development is among the real sources of Russia’s economy growth. Construction of port facilities and new hydraulic engineering structures on the country’s inland waterways constitute an essential part of all infrastructure projects. It is important to take into account the best international practices to implement these projects effectively.

The program of the Congress will be devoted to the latest technologies for dredging and hydraulic engineering works. Speakers and delegates will refer to real projects to discuss specifics features of dredging works, as well as dedicated fleet and equipment involved.

To learn more about event, please, contact the organizing committee: snitko@portnews.ru

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