Seem to be everywhere, really massive things, I think my car has suffered damage to the suspension from normal driving because they're often unavoidable.
I don't think filling them in is enough anymore, I think whole sections of roads need entirely relaying, so many roads have so many small repairs which have failed leaving massive ruts and gouges.
I know relaying roads will be massively expensive and holes need to be filled now, I think with the state of local council finances there should be more money from central government for major repairs. I know the government are strapped for cash too and have so many competing claims on the money they do have, but something needs to be done.
