A truck has crashed on the New England Highway at Sunnyside Road, Tilbuster closing both the North and Southbound lanes.
Shortly before 2:30 am on Wednesday 21st of October emergency services were called to the scene where they found the B Double truck had rolled.
Transport NSW is advising people to drive with caution and allow an extra 80 minutes to their travel time due to diversions currently in place.
Drivers are advised to use Waterfall Way to Ebor and then Guyra Road to Guyra.
Due to the salvage and recovery operation required, there is no forecast of when the highway will reopen.