Dont even talk about the tracks, what a effort in futility that is, although I still do it, at least we dont have to contend with freezing temps like you. The pipe carried domestic water. We dont have to worry about compaction as Kewitt is following behind and installing new pipe. They will have to import material. The outside of the pipe is coated with asbestos so after we remove a section its carried to an abatement area. The biggest problem is the tight quaters. We are working at night so as to avoid all the other trades.