What happened
The M1 northbound is closed between J40 and J41 due to a collision resulting in a substantial spillage of diesel across all lanes.
RoadM1
SeveritySevere
StatusCleared
DirectionNorthbound
Started18:27, 3 Aug 2026
Cleared13:40, 4 Aug 2026
Incident timeline
First report
The M1 northbound is closed between J40 and J41 due to a collision resulting in a substantial spillage of diesel across all lanes.
Update
The M1 northbound is closed between J40 and J41 due to a collision resulting in a substantial spillage of diesel across all lanes.
Update
⏱ Still active — no changes from National Highways. Incident ongoing for 33 minutes. Delays of 30 minutes still recorded. Monitoring continues.
Update
The M1 northbound is closed between J40 and J41 due to a collision resulting in a substantial spillage of diesel across all lanes.
Update
⏱ Still active — no changes from National Highways. Incident ongoing for 1h 13m. Delays of 30 minutes still recorded. Monitoring continues.
Update
The M1 northbound is closed between J40 and J41 due to a collision resulting in a substantial spillage of diesel across all lanes.
Update
⏱ Still active — no changes from National Highways. Incident ongoing for 1h 48m. Delays of 30 minutes still recorded. Monitoring continues.
Update
The M1 northbound is closed between J40 and J41 due to a collision resulting in a substantial spillage of diesel across all lanes.
Update
⏱ Still active — no changes from National Highways. Incident ongoing for 2h 23m. Delays of 30 minutes still recorded. Monitoring continues.
Update
The M1 northbound is closed between J40 and J41 due to a collision resulting in a substantial spillage of diesel across all lanes.
Update
⏱ Still active — no changes from National Highways. Incident ongoing for 2h 58m. Delays of 30 minutes still recorded. Monitoring continues.
Update
The M1 northbound is closed between J40 and J41 due to a collision resulting in a substantial spillage of diesel across all lanes.
Update
⏱ Still active — no changes from National Highways. Incident ongoing for 3h 33m. Delays of 30 minutes still recorded. Monitoring continues.
Update
The M1 northbound is closed between J40 and J41 due to a collision resulting in a substantial spillage of diesel across all lanes.
Update
⏱ Still active — no changes from National Highways. Incident ongoing for 4h 8m. Delays of 30 minutes still recorded. Monitoring continues.
Update
The M1 northbound is closed between J40 and J41 due to a collision resulting in a substantial spillage of diesel across all lanes.
Update
⏱ Still active — no changes from National Highways. Incident ongoing for 4h 43m. Delays of 30 minutes still recorded. Monitoring continues.
Update
The M1 northbound is closed between J40 and J41 due to a collision resulting in a substantial spillage of diesel across all lanes.
Update
⏱ Still active — no changes from National Highways. Incident ongoing for 5h 18m. Delays of 30 minutes still recorded. Monitoring continues.
Update
The M1 northbound is closed between J40 and J41 due to a collision resulting in a substantial spillage of diesel across all lanes.
Update
⏱ Still active — no changes from National Highways. Incident ongoing for 5h 53m. Delays of 30 minutes still recorded. Monitoring continues.
Update
The M1 northbound is closed between J40 and J41 due to a collision resulting in a substantial spillage of diesel across all lanes.
Update
⏱ Still active — no changes from National Highways. Incident ongoing for 6h 28m. Delays of 30 minutes still recorded. Monitoring continues.
Update
The M1 northbound is closed between J40 and J41 due to a collision resulting in a substantial spillage of diesel across all lanes.
Update
⏱ Still active — no changes from National Highways. Incident ongoing for 7h 3m. Delays of 30 minutes still recorded. Monitoring continues.
Update
The M1 northbound is closed between J40 and J41 due to a collision resulting in a substantial spillage of diesel across all lanes.
Update
⏱ Still active — no changes from National Highways. Incident ongoing for 7h 38m. Delays of 30 minutes still recorded. Monitoring continues.
Update
The M1 northbound is closed between J40 and J41 due to a collision resulting in a substantial spillage of diesel across all lanes.
Update
⏱ Still active — no changes from National Highways. Incident ongoing for 8h 13m. Delays of 30 minutes still recorded. Monitoring continues.
Update
The M1 northbound is closed between J40 and J41 due to a collision resulting in a substantial spillage of diesel across all lanes.
Update
⏱ Still active — no changes from National Highways. Incident ongoing for 8h 48m. Delays of 30 minutes still recorded. Monitoring continues.
Update
The M1 northbound is closed between J40 and J41 due to a collision resulting in a substantial spillage of diesel across all lanes.
Update
⏱ Still active — no changes from National Highways. Incident ongoing for 9h 23m. Delays of 30 minutes still recorded. Monitoring continues.
Update
The M1 northbound is closed between J40 and J41 due to a collision resulting in a substantial spillage of diesel across all lanes.
Update
⏱ Still active — no changes from National Highways. Incident ongoing for 9h 58m. Delays of 30 minutes still recorded. Monitoring continues.
Update
The M1 northbound is closed between J40 and J41 due to a collision resulting in a substantial spillage of diesel across all lanes.
Update
⏱ Still active — no changes from National Highways. Incident ongoing for 10h 33m. Delays of 30 minutes still recorded. Monitoring continues.
Update
The M1 northbound is closed between J40 and J41 due to a collision resulting in a substantial spillage of diesel across all lanes.
Update
⏱ Still active — no changes from National Highways. Incident ongoing for 11h 8m. Delays of 30 minutes still recorded. Monitoring continues.
Update
The M1 northbound is closed between J40 and J41 due to a collision resulting in a substantial spillage of diesel across all lanes.
Update
⏱ Still active — no changes from National Highways. Incident ongoing for 11h 43m. Delays of 30 minutes still recorded. Monitoring continues.
Update
The M1 northbound is closed between J40 and J41 due to a collision resulting in a substantial spillage of diesel across all lanes.
Update
⏱ Still active — no changes from National Highways. Incident ongoing for 12h 18m. Delays of 30 minutes still recorded. Monitoring continues.
Update
The M1 northbound is closed between J40 and J41 due to a collision resulting in a substantial spillage of diesel across all lanes.
Update
⏱ Still active — no changes from National Highways. Incident ongoing for 12h 53m. Delays of 30 minutes still recorded. Monitoring continues.
Update
The M1 northbound is closed between J40 and J41 due to a collision resulting in a substantial spillage of diesel across all lanes.
Update
⏱ Still active — no changes from National Highways. Incident ongoing for 13h 28m. Delays of 30 minutes still recorded. Monitoring continues.
Update
The M1 northbound is closed between J40 and J41 due to a collision resulting in a substantial spillage of diesel across all lanes.
Update
⏱ Still active — no changes from National Highways. Incident ongoing for 14h 3m. Delays of 30 minutes still recorded. Monitoring continues.
Update
The M1 northbound is closed between J40 and J41 due to a collision resulting in a substantial spillage of diesel across all lanes.
Update
⏱ Still active — no changes from National Highways. Incident ongoing for 14h 38m. Delays of 30 minutes still recorded. Monitoring continues.
Update
The M1 northbound is closed between J40 and J41 due to a collision resulting in a substantial spillage of diesel across all lanes.
Update
⏱ Still active — no changes from National Highways. Incident ongoing for 15h 13m. Delays of 30 minutes still recorded. Monitoring continues.
Update
The M1 northbound is closed between J40 and J41 due to a collision resulting in a substantial spillage of diesel across all lanes.
Update
⏱ Still active — no changes from National Highways. Incident ongoing for 15h 48m. Delays of 30 minutes still recorded. Monitoring continues.
Update
The M1 northbound is closed between J40 and J41 due to a collision resulting in a substantial spillage of diesel across all lanes.
Update
⏱ Still active — no changes from National Highways. Incident ongoing for 16h 23m. Delays of 30 minutes still recorded. Monitoring continues.
Update
The M1 northbound is closed between J40 and J41 due to a collision resulting in a substantial spillage of diesel across all lanes.
Update
⏱ Still active — no changes from National Highways. Incident ongoing for 16h 58m. Delays of 30 minutes still recorded. Monitoring continues.
Update
The M1 northbound is closed between J40 and J41 due to a collision resulting in a substantial spillage of diesel across all lanes.
Update
⏱ Still active — no changes from National Highways. Incident ongoing for 17h 33m. Delays of 30 minutes still recorded. Monitoring continues.
Update
The M1 northbound is closed between J40 and J41 due to a collision resulting in a substantial spillage of diesel across all lanes.
Update
⏱ Still active — no changes from National Highways. Incident ongoing for 18h 8m. Delays of 30 minutes still recorded. Monitoring continues.
Update
The M1 northbound is closed between J40 and J41 due to a collision resulting in a substantial spillage of diesel across all lanes.
Update
⏱ Still active — no changes from National Highways. Incident ongoing for 18h 43m. Delays of 30 minutes still recorded. Monitoring continues.
Update
The M1 northbound is closed between J40 and J41 due to a collision resulting in a substantial spillage of diesel across all lanes.
Update
✅ Incident cleared — M1 reopened at 13:40 on 4 Aug 2026. Total disruption: 19h 13m. All lanes open, traffic returning to normal.
Final update
The M1 northbound is closed between J40 and J41 due to a collision resulting in a substantial spillage of diesel across all lanes.
Wording from National Highways, recorded as it changed.
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