THE Golden Highway is closed in both directions between Lawlers Lane and Dunblane Road at Merriwa due to a truck crash overnight.
Motorists are advised to avoid the area on Tuesday morning and should consider using the New England Highway instead.
A Transport Management Centre spokesperson said there had also been a large diesel spill and emergency services are on site, with traffic crews attending.
Diversions are in place now, with westbound traffic being diverted onto Denman Road to Muswellbrook, the New England Highway to Scone and Bunnan Road/Scone Road to Merriwa.
The eastbound diversion is the same in reverse.
This diversion is suitable for all vehicles except extended B-Doubles over 25m.
For the latest traffic information, visit www.livetraffic.com