Badly-needed weed clearing on Driffield Canal will improve navigation and help prevent the risk of flooding.
The Environment Agency has removed thick weed growth from the waterway between Snakeholme Lock and the Trout Inn at Wansford.
For many years, weeds had been left to grow and the channel was down to only 4ft wide on that section of the canal.
Driffield Navigation Trust commissioners asked the agency to cut the weed as part of their plans to revive the historic waterway.
John Scholey, trust vice-chairman, said: “We are delighted with the outcome, and would like to thank the agency for carrying out the work.
“Over the years, unchecked weed growth has clogged up the some sections of the canal, causing all sorts of problems.
“The weed clearing has had a dramatic effect, and the 4ft channel has now been widened to around 18ft. That section now looks like a canal again.”
The trust is at the helm of new enthusiasm to make the 250-year-old, 11-mile canal, fully navigable for boats again.
But the commissioners are also keen for the canal to play a role in improving land drainage to help prevent potential flooding risks.
Mr Scholey said: “The weed clearing will allow water to flow more freely downstream, which will help to alleviate flooding in the village of Wansford.
“The village was hit by the 2007 floods, so the trust installed new gates at Wansford Lock and fitted a by-wash, costing more than £60,000, to help prevent fooding in the future.”
Weed clearing follows the trust’s £45,000 scheme to replace the gates at Driffield Town Lock, and a makeover for Whinhill Lock, between the town and Wansford.
Mr Scholey added: “The move will allow free naviation for boats to the pontoon, which the trust installed, outside the Trout Inn.
“It just shows what can be achieved by everyone working together, and we are now even more determined make the canal a fully working waterway again.
“The aim to see boats sailing all the way from Hull to Driffield, which will be fantastic.”
The new Town Lock gates are expected to be fitted at the end of August.