Police were called to the B2139 at Amberley, near Amberley bridge, at around 8am.
Officers said an articulated lorry left the road and got stuck in a nearby farmers field.
The road was closed at around 12.30pm between the Whiteways Lodge roundabout, near the A29, and the A283 Pulborough Road junction, in Storrington, whilst the vehicle was recovered.
The road remains closed.
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