A 200-year-old lock which is part of the famous Wigan Flight has undergone complex repairs so that boaters can continue to use the canal.
BUILT in 1816, Wigan Flight is one of the most distinctive features on the Leeds & Liverpool Canal. The flight of 21 locks raises the canal more than 200ft over two-and-a-half miles.
In June, one of the locks, next to Warrington Road in Wigan, stopped holding water, and the Canal & River Trust’s specialists drained it to investigate. They discovered that the huge concrete ‘arrowhead’, which forms part of the cill the lock gate sits on, had lifted, meaning that the gates could not seal shut.
During the works, the team found more damage to two large wooden floor planks, which also needed to be replaced. The CRT team designed and built ramps down to the canal bed for the machinery to break up the arrowhead and safely remove it from the lock.
They then put in the new concrete base, cut and test-fitted timber cills, and poured structure concrete to create a new arrowhead.
With the unexpected opportunity of a fully drained lock, the charity enlisted the help of local volunteers to help clear out traffic cones, bikes and other rubbish. Once the concrete had dried, the team fitted the timber cills and tested the lock gates, with navigation able to resume ahead of schedule early last month (July). The CRT prioritised the work to fix the damage to ensure the lock remained safe and available to boaters.
What had started as a ‘simple’ failed cill turned into a much larger project involving tons of materials, machinery and a broad range of engineering and construction skills. Jeff Smith, reactive response team manager at CRT, said: “The Wigan Flight is well known by local boaters – and by those from further afield seeking the challenge of tackling the 21 locks.
“It’s remarkable that, more than 200 years since it was built – marking the completion of the Leeds & Liverpool Canal and linking those cities by water – it is still being used by boats today.
“We knew how important it was to get the lock open for boaters as quickly as possible and it has been all hands on deck to complete this tricky repair.”
He added: “We’ve taken advantage of having a fully drained lock to do as many other tasks as we can so that the chances of having to disrupt navigation again are reduced.
“We’re proud to look after this amazing part of our heritage and we are pleased to see boaters navigating the flight again.
“Caring for our ageing canal network is an expensive task for our charity, and we welcome people’s support.”
