Oklahoma uses the 3D technique too

The Ice causes the pavement to split

We rarely get ice and it happens even when the temps don't drop below 50.

I SAID THE ICE DOES IT...u must have that ice that freezes @50 then.

There air pockets in the road that fill with water and get more and more hollow and fragile before breaking creating a pot hole. Winter can speed this up by expanding water in the road.

Thank you

I'm glad somebody mentioned Michigan

This is quite normal here, people even put flowers in it.