Major stretch of A43 in Northamptonshire set for 12-hour closure after serious incident

A busy stretch of dual carriageway in Northamptonshire was forced to close overnight leaving motorists trapped in their vehicles.

At around 12.30am this morning (Wednesday March 27) the A43 between Brackley and Towcester was closed by emergency services on scene in both directions due to a serious road traffic collision.

A spokesperson for Northamptonshire Police said at 12.52am: “The road is likely to be closed throughout the night, and motorists are advised to seek an alternative route.”

National Highways thanked motorists who were trapped in the northern closure and said at 3.50am that officers would start to turn the traffic around shortly.

At 5.40am Highways East Midlands said: “The A43 remains closed north between A413 (Silverstone) and the A413 (Whittlebury) and south between the A5 (Towcester) and Whittlebury due to a serious collision.

“Traffic caught within the northbound is being released.

“The road is expected to be closed until at least midday.”

UPDATE: Northamptonshire Police posted on X at just before 10am confirming that the road remains closed.

The post said: “Our officers remain at a serious collision on the #A43 northbound between Silverstone and Abthorpe, which happened around 11.45pm last night, Mar 26. The road remains closed in both directions at present. Please avoid the area and follow diversions. Thank you. Updates to follow.”

2pm UPDATE: Northamptonshire Police has confirmed the southbound closures have been lifted, but the northbound closure between Silverstone and Abthorpe remains in place. It expected to re-open in the next two hours.

3.30pm UPDATE: Police have now confirmed that all closures have been lifted. Traffic flow has resumed as normal.