New technology trialled on £2m lock upgrade

Alex Popein Bedford
News imageAlex Pope/BBC Work being carried out on a lock in Bedford, along a river. A guillotine lock can be seen at one end, with metal items in place, fencing, barriers, and houses behind it all. Alex Pope/BBC
Boat users have been unable to use the lock since October

New technologies, including Artificial Intelligence (AI), were used for the £2m renovation of a lock on the River Great Ouse, its project manager said.

The Environment Agency started work on the Bedford Lock, by the town's Embankment, in October, and it was expected to be finished by March 2026.

Project manager Steven Wilby said for the first time, a high-resolution camera was used to see the condition of the lock underwater, and after 3D models were made, next steps were taken with AI input.

He said these underwater "scans are proof that we could now reliably use this in the future for other work".

News imageAlex Pope/BBC A man, wearing a blue hardhat, a high-viz jacket, standing by a lock, that is having work carried out on it. There are houses behind him a large blue portable cabin, to the right, and a lock, with metal rods along it. He has on safety glasses, is looking at the camera and has a goatee beard. Alex Pope/BBC
Steven Wilby said working on the Bedford Lock was interesting as it was right in the centre of town, and most locks were in remote areas

The lock, the first in the town, allowed the Great Ouse to be navigated, along its route through Cambridgeshire to the Wash at King's Lynn, in Norfolk.

It was built in 1868 and was last refurbished in the 1950s.

Mr Wilby said repair work was needed as walls were breaking due to damage caused by tree roots that were chopped down in 2009.

The water had been drained so that work could be carried out, which had been two years in the planning.

News imageAlex Pope/BBC A man, in full orange high-viz clothing, holding a drill, down the bottom of a lock, with machinery, and metal scaffolding by him. There are red brick walls around him. Alex Pope/BBC
When the lock was fully drained lots of conkers were found in the bottom, workers said

"The Environment Agency is always looking for innovation and safety," Mr Wilby said.

"We asked our contractors if there were any new technologies out there that were coming along, and they suggested that we use this underwater camera."

Images were integrated into a 3D model then decisions were made using AI about what might be below water.

What they predicted was "true", he said.

"It will also have new doors fitted at one end, and at the other, its guillotine gate will be renovated and painted," he explained.

News imageAlex Pope/BBC Work being carried out on a lock, with two men at one side, machinery bellow it, metal barriers, metal frames, a bridge and a metal shutter blocking off the other end. Alex Pope/BBC
The law stipulates work must be completed by Good Friday, the Environment Agency said

Mr Wilby said: "You will not see the benefit today, but you will see the benefit in the future.

"When we come back to this lock, in the future, some of the innovations we've put into this lock will make it easier for the next project manager to come along and do it cheaper than we did it this time."

News imageAlex Pope/BBC A wooden slatted landing stage, by a river bed, with blue rope round a metal clip, grass and plants in front and water to the left. Plastic pontoons are in front of it. Alex Pope/BBC
A landing station close to the lock will also be renovated and refurbished as part of the work

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