A section of Auckland's Southern Motorway was closed for more than seven hours on Sunday morning after a vehicle crashed through the barriers on an overbridge, plunging to the motorway below.
The crash happened about 3.37am along Hill Rd in Manurewa.
The motorway reopened around 11am, and the damaged overbridge opened about an hour and a half later.
Police said the occupant of the vehicle lost control while crossing the bridge.