Overview

• Northbound lanes at Werribee Zoo have reopened after wreckage was cleared but diversions remain in place
• Victoria Police confirmed no injuries in the 4:20 am crashes involving a truck and at least 10 cars
• Commuters endured up to three-hour delays and an eight-kilometre traffic jam through Werribee
• Aerial footage revealed a large gap and metal spikes protruding where the freeway meets the bridge
• Authorities continue to probe how the metal plate became dislodged and triggered the series of collisions