HAZARD Earlier truck fire 11:51 am – M1 Pacific Motorway Berowra just past Berowra on-ramp 1 of 3 Northbound lanes closed. Lane 1. The northbound on-ramp is closed – light vehicles can use Pacific Hwy. Expect delays Allow extra travel time Heavy vehicle tow truck,Emergency services,Transport for NSW, are attending . Heavy traffic conditions. Last checked at 1:36pm.