During August, the NorthConnex tunnel will close for planned maintenance work from 9.30pm to 5am on the following dates:
- Dual tunnel closure – Saturday 7 May and Wednesday 18 May (tunnel closed in both directions, detour via Pennant Hills Road)
- Northbound tunnel closure – Sunday 14 August to Wednesday 17 August (detour northbound only via Pennant Hills Road)
- Southbound tunnel closure – Sunday 21 August to Wednesday 24 August (detour southbound only via Pennant Hills Road)
To minimise disruption to road users and for the safety of our workers, these works will take place at night. During tunnel closures, motorists can detour via Pennant Hills Road to join the M1 at Wahroonga or M2 at West Pennant Hills.
Traffic changes including a slow lane closure and speed reduction will be in place at the M2 to Pennant Hills Road exit and on Pennant Hills Road to the Karloon Road intersection (northbound) on Saturday 13 August, from 9.30pm to 5am, weather permitting.
Overhead variable messages and traffic control signs will alert road users of all changes to traffic conditions in the area.
Visit Live Traffic NSW for the latest traffic updates and information.
NorthConnex thanks our customers the community for their patience and understanding and apologises for any inconvenience during this time.
For enquiries or feedback, please contact us.
Southern Interchange detour via Pennant Hills Road
Northern Interchange detour via Pennant Hills Road
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