Our minor civils division were urgently required to reconstruct a collapsed retaining wall to a flood sensitive brook. Although, at first glance, the project seemed relatively small, there were hidden complexities. The collapsing wall was situated very close to a critical part of our customer’s infrastructure, this being the main water supply for over 130,000 of its customers.
Owing to our expertise and knowledge of the constraints when working close to this type of asset, we could plan, progress and complete the works without any disruption to the water supply. In addition, easy access for residents to their properties was maintained throughout the re-construction process.
The work included ecological constraints, watercourse diversions, road closures with temporary access routes being constructed, the closure and diversion of local footpaths, designed temporary works as well as maintaining the aesthetics of the area for the residents.
All necessary designs, permissions, surveys and diversions were put in place. Cofferdams, silt-traps for over pumping and temporary shoring were installed and the sensitive water pipeline was protected. The works commenced within two weeks of the order being placed.
Following excavation works, the solution was to build a structural concrete wall on a cantilevered slab, below ground, and then to reinstate the area to be in keeping with the original stone work.
The work was completed by our own trained workforce, well within schedule and budget and with the client, residents and local and national governing bodies all being highly satisfied with the results.