The vast knowledge and experience of the senior management team is also to thank. “Following the introduction to proceed from Bloor Homes [who produced the design to overcome constraints] we were straight onto the matter”, comments Billy Plant, “This involved myself in collaboration with Claire Stacey producing detailed methodology and safe systems of work, later sent for approval with SGN and passed smoothly. This enabled us to proceed with our choice of site manager to deliver the work.” Having worked with SGN before, Plant understood their processes and needs well, which contributed hugely to the prompt approval.
Sean O’Malley was then selected as site manager for his expertise, notably his work on the Waterbeach Barracks development, and, once again, Plant and Stacey’s informed judgement led to a quick approval from SGN.
With approvals in place, SGN appointed a Watch Brief and ECL were good to go.
First, a haul road was built to gain access to the south of the main road where the gas mains are located. These were then uncovered using our vacuum excavation machine, chosen for its speed, small surface impact and ability to work around the area without risk. With greater visibility, diggers could soon be safely used.
Next, concrete was poured down either side to create a flexible platform bridge with reinforcement bars placed on top of the two concrete abutments. Additional concrete was then poured and cured to form the protection slab, acting as a bridge over the gas main so that a road and cycle path could be built over the main without compromising it.
To ensure the concrete strength met the specification requirement, test concrete samples were sent to the laboratory for inspection to qualify the integrity of the slab.
The samples passed the test, and works were subsequently signed off, and the constraints were officially resolved.
This project started on Monday, 13th November, and was completed by the 28th, three days ahead of the proposed schedule, thanks to the outstanding ECL team and their ability to work collaboratively with efficiency and expertise in a high-risk environment.