what if this was after TSHTF?

[NorthernRaider]

I think the article I referred to required the roads to not be "Heavily Trafficked" which would allow nature to reclaim the land quicker, Up here a few roads and paths laid in Roman times are still used today by ramblers some 100 years after they were built, BUT also not far from here where a new road bypassed and old road and the old road was simply closed off most of the road has completely vanished in under five years.

I have actually tagged as a reserve BOL a triangular chunk of land that was originally part of the old A19 trunk road which was replaced by a new roundabout 100 yards to the west only ten years , the two lanes are fading fast but the land between the two lanes is not like a forest.

So I reckon for a thoroughfare to disappear completely in a SHORT time period it looks like it needs to stop being used first. Other areas could disappear in a few months with a bit of flooding and undercutting.

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Dev, just thinking about your comments above, some things last, some don't, up here when they built the Tees flyover on the A19 within 7 years it was falling apart, some columns sinking, others cracked and all the bearings to roadbed sat on failed completely meaning the deck could have collapsed within only a few years. And the new entrance road to teesside park has to be replared almost every year as it keeping subsiding badly.
Both sit only a mile from the Victorian built transporter bridge and newport Bridges which only need a lick of paint