A girl at work is currently going through this with her local Council.
Last winter she hit an uneven badly cracked surface in the road and it threw her car into a ditch upside down, it wrote the car off and she got trapped inside, a week after the Council resurfaced the road.
They are currently refusing to acknowledge that the road was dangerous in the first place and want nothing to do with her.
She has written to them one last time threatening legal action and an independant ombudsman, they are likely to ignore her again at which point she will have to take them to court.
So........... after that long winded story I say good luck, but dont hold your hopes up, could be more hassle than its worth.
Ps: This was covered in the local press and the council still wont budge