One thing I don't completely understand is why CRT don't fit some vulcanised rubber strip where boats turn, its the same at Norton Junction. Lovely sandstone edging at Coventry basin, being mashed by boats turning and hitting the edge as often happens.
Its sad, as replacement costs would be large and unsightly. Appreciate they haven't any money, and that they don't tend to do preventative . Thus perhaps I have answered the question. Surprised the Coventry Canal society/ IWA haven't raised it, or perhaps they have.