Work to repair sections of the A30 in Devon damaged by harsh winter weather is not to begin until the end of June, the Highways Agency has said.
December's big freeze affected a stretch between Exeter and Okehampton so badly that parts of the road have been breaking up or sinking slightly.
The agency said a rolling repair programme it was undertaking meant work could not begin straight away.
Some temporary patches have been put in place.
The A30 is one of the main roads through Devon.