The A23 was closed at Pyecombe this morning (Thursday) after a lorry overturned and collided with another vehicle.
Emergency services were called to the scene, on the southbound carriageway just north of the A273 Clayton Hill junction, at 9.07am. The lorry is understood to have been carrying rocks or aggregate, which have been shed across the road.
The road reopened at noon, Sussex Police say.
The driver of the lorry is reported to be uninjured. The driver of the car has sustained a hand injury, police said.