Massive delays on the M1 continue
Motorists are being warned that traffic on the M-1 heading north, will likely remain heavy for at least another four hours.
Emergency workers are on-site, waiting for traffic to disperse so they can carry out works on a dislodged expansion joint.
There are 25-kilometre queues from Mooney Mooney to Wahroonga.
Drivers are advised to take care.