About
Enabling works to facilitate the refurbishment of Boston Grand Sluice in Lincolnshire continues apace.
The large structure, which was originally built in the 18th century, spans the River Witham and sits under the A1137 road bridge and next to a railway bridge. It helps to protect 9,000 homes and over 25,000 hectares of farmland from flooding.
On the upstream side of the structure, a Jackson team is working from multiple pontoons, installing a new liner frame for the sluice gate stoplogs. The task has seen divers working underwater to fix rebar cages to the base of gates. Shutters have been built around the cage and a special-mix concrete will be poured to form a slab and secure the cill beam.
Vertical stainless-steel guides, which hold the stoplogs, will then be fixed to the cill beam.
Members of the dive team, who work for subcontractor Red 7, work in shifts. They must be in video and audio contact with colleagues at the surface at all times.
On the downstream side of the sluice, grouting work is being completed on the stop log liners, which were installed last year.
Other work being carried out this season includes the erection of two access bridges on the down stream side and three on the upstream side, further site investigations ahead of the installation of a stoplog handling system and the facilitation of new power supplies into the sluice.
The work to upgrade the stoplog system on the sluice structure will enable the main refurbishment works on the mitre and guillotine gates on the sluice structure.
More Information
About Jackson Civil Engineering
Jackson is a regionally structured civil engineering firm with national capabilities. Our no-nonsense approach to work means that our clients keep coming back because they can rely on us to get the job done on time and on budget. We have a strong reputation a...
