31/05/2026
⚠️ M1 Roadworks Update – Junctions 16 to 19 ⚠️
National Highways will shortly begin remedial works to strengthen embankments at four emergency areas along the M1 between Junctions 16 and 19.
📅 Work is expected to begin on Monday 8 June 2026 and continue until August 2026.
During the works:
• Lane 1 will be closed in the affected areas
• A 50mph speed limit will be in place
• A free recovery service will operate throughout the roadworks
• Most emergency areas will remain open where possible
🚧 Overnight slip road closures (9pm–6am):
8 June
• M1 Junction 18 southbound entry and exit slip roads
• M45 southbound to M1 southbound link road
9 June
• Watford Gap Services northbound entry and exit slip roads
Please allow extra time for journeys and note that dates may change due to weather or operational requirements.
For further information, contact National Highways on 0300 123 5000 or visit Traffic England for the latest road closure information.