A leaking canal could be fixed by injecting polyurethane grout into the towpath.
Listed building consent is being sought for the repair on the Leeds and Liverpool Canal, near Gargrave, North Yorkshire.
The Canal and River Trust, which has submitted the application to North Yorkshire Council, says the canal is leaking as it crosses Priestholme Aqueduct — a grade II listed building.
A report adds:
“Canal water is seeping through the canal wash wall into the soil that forms the towpath over the canal.
“The canal water is then tracking down through the soil onto the stone arch of the aqueduct and through the arch into the river below.
“It is proposed to stem this flow by injecting polyurethane grout into the ground behind the canal wash wall to form an impervious curtain.”
The trust says the process will not alter the design of the aqueduct and does not involve any work to the historic masonry of the structure.
It adds:
“Consequently it is our judgement that the works will not cause harm to the character or significance of the listed structure.
“The proposed works will not be visible once completed.
“The appearance of the aqueduct will not be altered.”
The curtain will be five metres long and one and a half metres deep into the towpath.
The trust says the polyurethane grout is a solvent-free resin that reacts with water to produce a rapidly expanding foam that can stop flowing water.

Strong A Level performance celebrated by county’s schools
Main section of A59 Kex Gill route set to open 'within weeks'
Successful launch for Craven Court's new independent bookshop
Free family music workshops coming to Skipton this weekend
Skipton streets targeted in £27,500 chewing gum clean-up
Police invite residents' views on Skipton Bus Station
Rise in number of children in care contributes to Council's £10m overspend forecast
Skipton coffee company celebrates top Great Taste award
Teenagers sentenced after terrifying knife-point robbery in Skipton
North Yorkshire schools set for £6.8m improvement programme
Skipton Business Awards finalists revealed after more than 1,200 nominations
Yorkshire children invited to nominate their parents to be 'slimed' on CBBC
Fresh calls for school transport changes to be abandoned amid claim council is ignoring own policy
Funding agreed to progress work on Skipton leisure hub redevelopments
Community rallies to help elderly driver find 'missing' car in Skipton
Dales Dazzler trail running event returns to Skipton
Everything you need to know about Skipton Pride this weekend
Police appeal after driver forgets where car was parked in Skipton
Shoplifter caught trying to dump stolen goods in Skipton bin
Councillor breaks national fundraising record with charity head shave


