A SLIPROAD linking the A1 and the A47 at Wansford reopened at 12.30am today after a lorry overturned and spilled diesel yesterday.
The lorry carrying a trailer with 26 tons of compost tipped onto its side while joining the A47 at 1.20pm.
Police said about 200 litres of diesel spilled onto the road.
Most of the compost needed to be removed before work to remove the vehicle could begin.
The driver, who was freed by the fire service, had minor injuries.
The Highways Agency and Environment Agency were also called to the scene to help with the clear-up.