1800 yards long on the former gc line ,mostly sandstone with blue brick roof dry apart from 1 small leak in the middle 1 ends completly blocked apart from a acess shaft the other end is borded up, visted with pom juju baz and exploer dog Binky
We went 2 months ago, recently boarded up and painted, it is only a matter of time, It was our only fail this year. I know the window will a short one.
I rode the line as a small child so it's special to do. I suppose I will have to keep checking.