Working from the water for much of the project, the Jackson team overcame a number of engineering challenges to repair a 40m length of collapsed embankment along the tidal estuary of the River Crouch at Hullbridge in Essex.
The work required the installation of 102 steel pilings and a cofferdam to provide a safe working environment while the work was carried out.
Access to the site from the land was not possible because of the close vicinity of properties. For this reason, a 100-tonne crane on a 200-tonne jack-up barge standing at the shoreline of the River Crouch was used while piling was carried out.
Some materials were transported on land from the compound to the work site along the embankment footpath using a remote-controlled electric tracked load carrier to reduce carbon emissions.
A total of 102 piles were used to make the cofferdam. These piles were then cut down and left in situ forming part of the structure.
As the cofferdam was removed, the team prioritised work to maximise their working windows within tidal movements. For example, they worked down on the foreshore carrying our scour protection when the tide was out before moving further up the bank to cut the higher piles, as they tide came in.