Salt Marshes Vegetation Improves Coastal Protection

For the first time, large-scale tests have shown that salt marshes act as a buffer zones and attenuate waves, even in extreme conditions such as storm surges.

In combination with vegetation, they reduce waves by approximately 20% over a distance of 40 meters. This means that dikes behind salt marshes can be a lot lower and cheaper.

Bregje van Wesenbeeck, a specialist in nature-based engineering at Deltares, said: “Our computer models were already telling us that marshes can attenuate waves in extreme conditions as well, but scale testing and field measurements were confined to small waves. In Hannover, we looked at what happens to marshes during storms.

It emerged that, even in these conditions, marshes remain functional and intact. “There is no vertical erosion, even though some of the vegetation is lost,” she added.

Bregje believes that the experiments were a major step forward in terms of quantifying the role of ecosystems in flood prevention.

Source: deltares, October 03, 2014

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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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