CRASH 2 cars 5:57 am – Pennant Hills Road Wahroonga at M1 Pacific Motorway 2 of 4 Northbound lanes closed. Right turn lane. Northbound traffic wishing to access the M1 should use Pacific Hwy on-ramp.  Use an alternative route Reduce your speed; Exercise caution Tow Truck,Emergency services,Motorway Crew, are attending . Last checked at 6:08am.