The truck closed the southbound lane of the Sydney Harbour Tunnel for 10 minutes.
Live Traffic NSW confirmed the truck was sidelined to a separate lane so traffic could move through.
Traffic heading inbound to the city faced significant delays in the morning peak, but by 10am the backlog had cleared.
Cars were banked up from Macquarie Park onto the Gore Hill Freeway to the Lane Cove Tunnel before hitting the M2 into the city.
A spokesperson for Live Traffic…