The A27 is now running clear following an early-morning collision near the Bedhampton junction.
The collision, involving a van, happened shortly before 6.15am at the A27 eastbound junction, near the foot of the A3(M).
Tailbacks had stretched back to the Farlington exit of the A27.
Firefighters from Havant and Cosham stations attended the collision.
The driver was not seriously hurt in the collision, but was taken to Queen Alexandra Hospital for treatment.