There is some of that around here. Centralia Pa is now long gone, most buildings collapsed, few if any residents remain but the roads are still there. Most are now impassable by car but still there. In the 60s a trash fire spread to a underground coal vein and the whole area had been burning underground ever since.

There is also an abandoned turnpike in Pa. A 13 mile stretch that was rerouted in the 60s. The old part is still there, with the tunnels and everything. Some of it is still used to train road crews and to test out new rumble strips. Pa state police used one of the rest areas as a range and the military used it to train soldiers who were being deployed to Iraq. The post apacolyptic movie "The Road" was filmed there as well.