Trog
Established Member
That's what I'm thinking. You're going to have to go back to the beginning and start again surely. Could any of our infrastructure experts comment?
Will have to be cut right back to formation level at least, and probably deeper to make sure the underlying ground is solid and uniform. As you would not want to relay the track over a random mixture of different materials and compaction levels, as differential settlement would give problems for decades.
Then blind it all off with rock waste and or a nice sand blanket with some strong gridded geotextile to help spread the loads all laid in falls to new drainage and topped off with a layer of clean ballast and track to taste.