Comes to the problem of keeping construction equipment running that long and fuel issues. I could see keeping a single modern day dump truck running by stripping parts from others but without a good sized support structure those nice tough dozers, dump trucks, and excavators are not going to last 150 years. Now I could see a group keeping them running if there used sparingly and had the ability to jury rig as needed parts. I could even see converting older equipment back to steam driven gear by ripping out diesel engines and fitting a steam engine to keep them operating. But there going to be primitive and electronics will be the first to go. Which would make for an interesting encounter as any group that does operate those old machines might look on a Morrow teams equipment as a source of spare parts.
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