SCHEDULED ROADWORK Maintenance 12:01 pm – NorthConnex Tunnel Carlingford to Wahroonga between M2 Motorway and M1 Pacific Motorway Dual tunnel closure. Both directions will be closed on Sat 13, Thur 18 and 25 Aug. Diversions:Pennant Hills Rd.  Allow extra travel time. Check signage; Use diversions. STARTS: Thursday 9:30pm. ENDS: 5:00am. Last checked at 1:25am.