[Update 11am]
The driver of a B-double which crashed on the Pacific Highway at Woodburn this morning (Wednesday) was seriously injured .
The crash happened at around 3am, about 200 metres north of Rileys Hill Road at Woodburn.
The B-double was carrying food products and other cargo, and travelling north.
Emergency services were notified when other drivers located the truck rolled on its side, blocking the northbound lanes.
The driver of the truck was found on the road, unconscious and with head injuries. He was taken by NSW Ambulance paramedics to hospital where he is in a stable condition.
A crime scene has been established with specialist police investigating the circumstances surrounding the crash.
Traffic diversions are in place around the crash site and delays are expected.
For latest on road conditions motorists should check www.livetraffic.com.
[Earlier report]
A truck accident of the Pacific Highway near Woodburn overnight has blocked the northbound lane of the highway near Rileys Hill Road, and delays are expected.
It is the third major accident on the highway in two days, with a head-on collision between tow passenger cars yesterday at Broadwater claiming the life of a woman and injuring several others, including children.
Overnight on Monday, a truck rolled on the highway near Bangalow.
Emergency services are currently on the scene at the Woodburn crash, and incident response crews including a specialist crane have been dispatched.
Motorist are able to pass the incident site using alternating stop/slow conditions in the northbound lane. Delays will be experienced throughout the morning.
Recovery and the reopening of the northbound lanes are expected to take at least several hours.
Motorists should reduce speed, exercise caution and following the instructions of traffic controllers.
For further information regarding this incident and others on the NSW road network visit www.livetraffic.com or call the Traffic Information Line on 132 701.