Kings Lynn Lock Gates
Constructex completed removal of 98 year old lock gates on behalf of
Associated British Ports.
In total, 3 timber gates were removed, weighing up to 39 tonnes each.
The gates had been in place since installation in 1918 and despite being
non-operational for many years, the main structural timbers were found to
be in remarkably good condition.
Our commercial dive team initially carried out de-silting operations to free
the gates from years of sediment build up. Submersible hydraulic pumps
were required to shift around 25 tonnes of material. Underwater chainsaws
were used to cut out lifting gear attachment points. Once the gates were
prepared, a 350 tonne mobile crane was brought in to carry out the complex
lifting operation. Our dive team remained on site to attach lifting gear and
monitor lifts, with an inflatable buoyancy bag system on standby to assist
re-floating and lifting operations.
Support plant and lifting services were provided by Wavetrade and Seaflex.