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Filter Units form ultimate protection against scour damage.

Ridgeway’s Filter Unit is a bespoke product specifically designed for construction in the marine environment. It is a 100% environmentally friendly solution; the nets are made from 61% recycled bottles creating an entirely flexible structure with a stone fill inside, making them very adaptable. Filter Units have a one point lifting ring allowing fast and accurate installation with a reduced work…

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Filter units for flood EA defence schemes

Filter units installed on the Croston Flood Risk Management Scheme The Environment Agency along with WEM Framework contractors VBA (Volkerstevin, Boskalis & Atkins) have specified 2T filter unit rock bags for the large flood risk management scheme currently being constructed to reduce the flood risk to Croston Village. Located in the central west region of Lancashire,  Croston Village has been…

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Mersey Gateway Presents Challenging Conditions for 4T Filter Unit

filter unit

The Mersey Gateway is currently the largest new build bridge project to take place in the North West of England. During the first 6 months of 2015, Ridgeway worked closely with the project’s Senior Engineers supplying the 4T filter unit for scour protection of the North Cofferdam and later the Central Cofferdam. The Mersey Estuary presents very challenging tidal conditions…

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Rivers Agency install filter units in Camlough

Over the past few years the Rivers Agency has been utilising the filter units system for a number of different projects throughout Northern Ireland. The most recent of these was temporary application to protect the foundations of an abutment which had been experiencing high volumes of water due the winter season rainfall and the overflow from Camlough Lake. Excessive flows…

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Boskalis Install Filter Units on Sea Coastal Defence Scheme

In December 2014, Boskalis Westminster UK installed 4T Eco-green filter units to allow water to flow freely from a number of outlet pipes located along the sea front of the Clacton and Holland-on-Sea beaches.    The filter unit is a scour protection solution, however, innovative thinking from the consulting engineers, Mott MacDonald, recognised the filter units versatility and applied it for…

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Mott MacDonald Approves Filter Unit

In July this year Ridgeway provided Vinci Construction with a range of filter units (1, 2 & 4 tonne) for scour protection of a flood wall on a NET tram project.  The tram line located in Nottingham passes a flood storage area that experiences various levels of water annually. Ultimately this required scour protection at the base of the flood wall to protect…

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Kyowa filter units protect historic London site

Kyowa Filter Units, rock bags

In February this year emergency works were commissioned for the Tower of London foreshore to prevent further erosion of the wall adjacent to Tower Bridge. The contract was awarded to Mackleys Civil Engineering by the Environment Agency to install over 200 2 tonne Kyowa filter units as a method of scour protection at the historic site. Designed by experienced consulting…

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