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The M1 in Greater London is closed northbound between J1 (Brent Cross) and J4 (Elstree) due to a serious collision involving a motorcycle.
The M1 in Greater London is closed northbound between J1 (Brent Cross) and J4 (Elstree) due to a serious collision involving a motorcycle.
The M1 in Greater London is closed northbound between J1 (Brent Cross) and J4 (Elstree) due to a serious collision involving a motorcycle.
⏱ Still active — no changes from National Highways. Incident ongoing for 37 minutes. Monitoring continues.
The M1 in Greater London is closed northbound between J1 (Brent Cross) and J4 (Elstree) due to a serious collision involving a motorcycle.
⏱ Still active — no changes from National Highways. Incident ongoing for 1h 12m. Monitoring continues.
The M1 in Greater London is closed northbound between J1 (Brent Cross) and J4 (Elstree) due to a serious collision involving a motorcycle.
⏱ Still active — no changes from National Highways. Incident ongoing for 1h 47m. Monitoring continues.
The M1 in Greater London is closed northbound between J1 (Brent Cross) and J4 (Elstree) due to a serious collision involving a motorcycle.
✅ Incident cleared — M1 reopened at 20:25 on 10 Jul 2026. Total disruption: 2h 12m. All lanes open, traffic returning to normal.
The M1 in Greater London is closed northbound between J1 (Brent Cross) and J4 (Elstree) due to a serious collision involving a motorcycle.
Wording as published by National Highways, recorded as it changed.
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