Lengthy delays are in place between Leura and Wentworth Falls on the Great Western Highway after a multiple vehicle crash at the notorious Sinclair Road turn-off onto the highway.
The delays are occurring east bound on the highway with traffic banked up to Leura Public School at 11am.
Fire brigade, police and ambulance are at the scene and at least four vehicles, including a truck, are involved.
The accident has occurred on an extremely misty morning in the Upper Mountains with visibility very low.
Wentworth Falls accident causes delays: The accident has occurred on an extremely misty morning in the Upper Mountains on November 10 with visibility very low.
Previously the community has campaigned for traffic lights at the site.