Diversions are currently in place at Gulworthy roundabout as resurfacing work continues on the B3262.
The work by Devon County Council is set to continue until April 3.
The road, known as The Vig, is currently closed between the Gulworthy roundabout northwards to The Copper Penny Inn.
The diversion route, pictured, takes people via Old Launceston Road in Tavistock to reach Lamerton and villages further north.