Articles & Case Studies

What to do when the walls come tumbling down

Posted: Friday 7th June 2013

As part of the Environment Agency’s asset inspections along the Old River Ancholme in Brigg, Lincolnshire of a section of retaining wall was detailed as being in poor condition. Unable to rule out the possibility of the existing wall crumbling into the river and increased flood risks in the town, plans for a new retaining wall were released.

After looking at other options including bricks, steel piles and concrete, CPM’s Redi-Rock modular walls were chosen as the others caused problems with either installation, environmental impact or future maintenance and the works to replace the wall started early this year.

The wall, which is 85 meters long and 1.5 meters high, took just five days to construct by the Contractor, Interserve. The installed wall has been colour matched to blend in with the surrounding environment and is seen by the thousands of pedestrians that cross the County Bridge everyday.

David Watts, project manager for the Environment Agency, said: “Repairing the wall was ruled out due to the very poor condition of the wall and any of the potential repairs were unable to give us enough confidence that the wall would not fail in the near future.”

Adjoining the grade two listed County Bridge that falls within the town’s conservation area, Mr Watts said work had been undertaken to make sure the new structure was in keeping.

He said: “We have worked with the planners and environmentalists at the local authority to ensure the new wall is in keeping with the surrounding area, including colour matching the existing bricks to the replacement blocks.”

Following a site visit by John O’Gara, CPM’s Specifications Manager he reported that everyone on site was very happy with the wall saying: “the wall fits in well along the river and both the Environment Agency and Interserve Contractors were happy with the speed in which they built the wall and the finish.”




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