Our Role
Working closely with our client, we developed a solution which allowed the staged replacement of the brick tunnel invert in greater lengths than was previously considered feasible. Our enhanced sequence allowed our client to enjoy significant program savings with reduced propping of the temporary excavation. Where the tunnel passes below the docks, cofferdams were used to facilitate the delicate refurbishment works. We independently checked the twin-walled cofferdams to ensure a robust design to allow the safe renewal of this historic tunnel.
