NRW Takes New Approach

Specialists from Natural Resources Wales (NRW) are taking a, new innovative approach to flood maintenance work on the River Rhymney which is benefiting both people and wildlife.

Approximately 900 tonnes of shoal had built up in the river near the flood banks at Ystrad Mynach, causing the river to flow into a deep, narrow channel. This was damaging the flood banks, making them unstable.

The shoal needed to be removed to make sure the flood defenses could continue to protect people from flooding, but traditional excavation methods could have threatened wildlife in the river.

To combat this, a different approach was taken and water was diverted around the shoal so the excavator could work in a dry environment – reducing the movement of silt which can harm fish and insects.

Special silt wattles and silt mats were used to slow down the flow of the river and to capture sediment dislodged by the work. Working with company Frog Environmental, an innovative ‘bubble curtain’ was also trialled for the first time in a river in the UK.

This curtain of air bubbles stretches across the river and helps to manage silt, as well as providing an acoustic barrier to absorb sound and increasing oxygen levels in the river – protecting fish and other river life during the disturbance.

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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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National Marine Dredging Company “NMDC” aims to be the largest dredging player in the Arab’s Gulf region...

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