As part of routine maintenance, the NorthConnex Tunnel will be closed to all traffic between 9:30pm and 5:00am on Wednesday 5 October to Thursday 6 October.
For the safety of workers and motorists, the tunnel will be fully closed to traffic. All traffic will be diverted via Pennant Hills Road to join the M1 at Wahroonga or M2 at West Pennant Hills during the closures.
Heavy vehicles will not be fined for using Pennant Hills Road during the closures.
For the latest traffic information, visit www.livetraffic.com, download the Live Traffic NSW app or call 132 701.