Re: Don't forget Anderton Canal Lift
Ruined.
It used to be an elegant thing of counterweights, and before that the two caissons moved in opposition. By ensuring that the decending one was slightly fuller, the amount of motive effort required to operate the lift was minimal.
After the "restoration", each caisson has a single, modern hydraulic cylinder. The two sides are independent, and the lifting is by having a sodding great electrically-powered oil pump lifting all those tons of water. It works, yes, but it's now rather a full-scale working model than a restoration