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Reinforcing and re-opening a collapsed road in Birmingham

macwall

A retaining wall with a 120-year design life has helped to reinstate a damaged carriageway at Brookhouse Farm.

When a retaining wall carrying a road over Brookhouse Farm culvert collapsed, we were asked to provide a fast, yet long-lasting solution to replace the wall and get the carriageway back open for traffic.

Located to the south west of Birmingham, Frankley Green Lane recently closed when a retaining wall supporting the carriageway collapsed due to water run-off and soil erosion, taking part of the road with it. To get the carriageway quickly reinstated for traffic use, the damaged wall had to be replaced.

Worcestershire County Council’s consulting engineers CH2M Hill produced an Approval in Principal document, which proposed a concrete-faced MSE wall with a 120-year design life.

Alun Griffiths contractors approached us to provide an engineered retaining wall solution to meet these requirements. We recommended our MacWall® vertical system, which consists of segmental blocks reinforced by soil. Our Paragrid geogrid was used to reinforce the rear of the structure’s facing.

A mortar-less system, MacWall vertica offers ease of installation and solid reinforcement, enabling the carriageway to be re-opened quickly, while also providing a 120-year design life. The system relies on friction connection, with Paragrid placed between blocks at regular intervals to provide reinforcement to the granular backfill material that creates the reinforced soil wall.

To find out more about how we helped to get Frankley Green Lane back up and running, download the case history.

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