This extract explains why the canal didn't go through Accrington as originally planned and this was an important factor in the eventual development of Clayton as the wharf and industrial area built up around it. There's a nice anecdote about the Petre family of The Dunk too!
"As the Leeds and Liverpool Canal winds its tortuous way through East Lancashire it seems to carefully avoid Accrington. However, when the canal’s route through East Lancashire was planned in 1793, it was to continue up the valley of the Hydburn, crossing it at a point close to the old Grammar School on Blackburn Road. The proposed Haslingden Canal was to join it here, creating a waterway link with Bury and Manchester. Had this happened there would have been a wharf near the junction where goods to and from the town could have been handled.
Instead the route was altered. The Peel family asked the canal company to avoid crossing the Hyndburn above their textile print works at Peel Bank. At that time it was one of the largest factories in the world and used the river's waters during the printing process. Building the embankment for the canal to cross the Hyndburn would have interrupted this supply and caused production problems. Instead, the canal was built downstream, rejoining the original line at a right angle junction at Church. Much of the land for the canal deviation had to be purchased from the Petre family of Dunkenhalgh. Although they were quite happy for the canal to be built, they requested that the towpath was made on the side of the canal away from their house and lands. They hoped that this would prevent poachers from gaining easy access to their estate!"
The stable block of what remains of Enfield Wharf is a Grade II listed building.
Info from this link:
The Leeds-Liverpool Canal by Mike Clarke