Revised spring 2026 completion for Queen Eleanor Interchange improvement works

05 November 2025

Completion of improvement work on the A45 Queen Eleanor Interchange is now expected in spring 2026.

The project, delivered in partnership with National Highways, aims to increase capacity, improve traffic flow, and reduce congestion at this key junction. It has progressed well and was scheduled to complete by Christmas.

However, new risks have been identified which require additional work to extend the subway, which is a key element of the project.

Issues uncovered as the work has progressed include previously uncharted utility services and unexpected areas of hard sandstone bedrock.

Cllr Richard Butler, Cabinet Member for Highways and Transport at West Northamptonshire Council, said: “While we appreciate this extension may be frustrating for road users, it’s essential that we take the time to deliver these improvements properly and safely.

“The challenges uncovered during construction are not uncommon in projects of this scale, and we’re working hard to resolve them efficiently.

“Once complete, this scheme will bring lasting benefits to the local road network, improving safety and reducing congestion for years to come.”

Updated Work Schedule

• Lane closures on the north bridge, Newport Pagnell Road, London Road, and Mere Way will continue until December 2025
• Subject to progress throughout November and December, the lane closure on Mere Way (toward London Road) will remain in place through the Christmas shutdown until work resumes in January 2026
• Planned night closures (8pm to 6am):
  • 24 November to 7 December 2025 (14 nights): East side (Hardingstone Lane/Newport Pagnell Road)
  • 8 December to 19 December 2025 (12 nights): West side (Mere Way/London Road)
  • Diversion routes will be clearly signposted, with advance warning signs on the National Highways A45 trunk road

All work is weather-dependent, and once complete the upgraded interchange will deliver significant benefits for all road users, including enhanced safety for drivers and pedestrians, increased lane capacity, and a fully reconstructed carriageway built to modern standards.