A VAN rolled into the inside wall of the Southwick Tunnel on Saturday evening.
Sussex Police closed both lanes in the A27, on the approach to the tunnel and inside, causing long delays.
The Vauxhall Combo van rolled inside the Southwick Tunnel westbound, just before 6pm on Saturday.
The 29-year-old driver from Worthing was checked over by ambulance crew before being taken to hospital with minor injuries.
Two vehicles also broke down near the tunnel entrance, causing further delays.
Police said the road re-opened at 7.27pm.