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Location : The M4 westbound exit slip at junction J11 .
Reason : Road traffic collision.
Status : Currently Active.
Time To Clear : The event is expected to clear between 19:15 and 19:30 on 25 June 2026.
Return To Normal : Normal traffic conditions are expected between 19:15 and 19:30 on 25 June 2026.
Lanes Closed : There are lane closures.
Location : The M4 westbound exit slip at junction J11 .
Reason : Road traffic collision.
Status : Currently Active.
Time To Clear : The event is expected to clear between 19:15 and 19:30 on 25 June 2026.
Return To Normal : Normal traffic conditions are expected between 19:15 and 19:30 on 25 June 2026.
Lanes Closed : There are lane closures.
Location : The M4 westbound exit slip at junction J11 .
Reason : Road traffic collision.
Status : Currently Active.
Time To Clear : The event is expected to clear between 19:15 and 19:30 on 25 June 2026.
Return To Normal : Normal traffic conditions are expected between 19:15 and 19:30 on 25 June 2026.
Lanes Closed : There are lane closures.
⏱ Still active — no changes from National Highways. Incident ongoing for 34 minutes. Monitoring continues.
Location : The M4 westbound exit slip at junction J11 .
Reason : Road traffic collision.
Status : Currently Active.
Time To Clear : The event is expected to clear between 19:15 and 19:30 on 25 June 2026.
Return To Normal : Normal traffic conditions are expected between 19:15 and 19:30 on 25 June 2026.
Lanes Closed : There are lane closures.
⏱ Still active — no changes from National Highways. Incident ongoing for 1h 9m. Monitoring continues.
Location : The M4 westbound exit slip at junction J11 .
Reason : Road traffic collision.
Status : Currently Active.
Time To Clear : The event is expected to clear between 19:15 and 19:30 on 25 June 2026.
Return To Normal : Normal traffic conditions are expected between 19:15 and 19:30 on 25 June 2026.
Lanes Closed : There are lane closures.
⏱ Still active — no changes from National Highways. Incident ongoing for 1h 44m. Monitoring continues.
Location : The M4 westbound exit slip at junction J11 .
Reason : Road traffic collision.
Status : Currently Active.
Time To Clear : The event is expected to clear between 19:15 and 19:30 on 25 June 2026.
Return To Normal : Normal traffic conditions are expected between 19:15 and 19:30 on 25 June 2026.
Lanes Closed : There are lane closures.
⏱ Still active — no changes from National Highways. Incident ongoing for 2h 19m. Monitoring continues.
Location : The M4 westbound exit slip at junction J11 .
Reason : Road traffic collision.
Status : Currently Active.
Time To Clear : The event is expected to clear between 19:15 and 19:30 on 25 June 2026.
Return To Normal : Normal traffic conditions are expected between 19:15 and 19:30 on 25 June 2026.
Lanes Closed : There are lane closures.
⏱ Still active — no changes from National Highways. Incident ongoing for 2h 54m. Monitoring continues.
Location : The M4 westbound exit slip at junction J11 .
Reason : Road traffic collision.
Status : Currently Active.
Time To Clear : The event is expected to clear between 19:15 and 19:30 on 25 June 2026.
Return To Normal : Normal traffic conditions are expected between 19:15 and 19:30 on 25 June 2026.
Lanes Closed : There are lane closures.
⏱ Still active — no changes from National Highways. Incident ongoing for 3h 29m. Monitoring continues.
Location : The M4 westbound exit slip at junction J11 .
Reason : Road traffic collision.
Status : Currently Active.
Time To Clear : The event is expected to clear between 19:15 and 19:30 on 25 June 2026.
Return To Normal : Normal traffic conditions are expected between 19:15 and 19:30 on 25 June 2026.
Lanes Closed : There are lane closures.
⏱ Still active — no changes from National Highways. Incident ongoing for 4h 4m. Monitoring continues.
Location : The M4 westbound exit slip at junction J11 .
Reason : Road traffic collision.
Status : Currently Active.
Time To Clear : The event is expected to clear between 19:15 and 19:30 on 25 June 2026.
Return To Normal : Normal traffic conditions are expected between 19:15 and 19:30 on 25 June 2026.
Lanes Closed : There are lane closures.
⏱ Still active — no changes from National Highways. Incident ongoing for 4h 39m. Monitoring continues.
Location : The M4 westbound exit slip at junction J11 .
Reason : Road traffic collision.
Status : Currently Active.
Time To Clear : The event is expected to clear between 19:15 and 19:30 on 25 June 2026.
Return To Normal : Normal traffic conditions are expected between 19:15 and 19:30 on 25 June 2026.
Lanes Closed : There are lane closures.
⏱ Still active — no changes from National Highways. Incident ongoing for 5h 14m. Monitoring continues.
Location : The M4 westbound exit slip at junction J11 .
Reason : Road traffic collision.
Status : Currently Active.
Time To Clear : The event is expected to clear between 19:15 and 19:30 on 25 June 2026.
Return To Normal : Normal traffic conditions are expected between 19:15 and 19:30 on 25 June 2026.
Lanes Closed : There are lane closures.
⏱ Still active — no changes from National Highways. Incident ongoing for 5h 49m. Monitoring continues.
Location : The M4 westbound exit slip at junction J11 .
Reason : Road traffic collision.
Status : Currently Active.
Time To Clear : The event is expected to clear between 19:15 and 19:30 on 25 June 2026.
Return To Normal : Normal traffic conditions are expected between 19:15 and 19:30 on 25 June 2026.
Lanes Closed : There are lane closures.
⏱ Still active — no changes from National Highways. Incident ongoing for 6h 24m. Monitoring continues.
Location : The M4 westbound exit slip at junction J11 .
Reason : Road traffic collision.
Status : Currently Active.
Time To Clear : The event is expected to clear between 19:15 and 19:30 on 25 June 2026.
Return To Normal : Normal traffic conditions are expected between 19:15 and 19:30 on 25 June 2026.
Lanes Closed : There are lane closures.
⏱ Still active — no changes from National Highways. Incident ongoing for 6h 59m. Monitoring continues.
Location : The M4 westbound exit slip at junction J11 .
Reason : Road traffic collision.
Status : Currently Active.
Time To Clear : The event is expected to clear between 19:15 and 19:30 on 25 June 2026.
Return To Normal : Normal traffic conditions are expected between 19:15 and 19:30 on 25 June 2026.
Lanes Closed : There are lane closures.
⏱ Still active — no changes from National Highways. Incident ongoing for 7h 34m. Monitoring continues.
Location : The M4 westbound exit slip at junction J11 .
Reason : Road traffic collision.
Status : Currently Active.
Time To Clear : The event is expected to clear between 19:15 and 19:30 on 25 June 2026.
Return To Normal : Normal traffic conditions are expected between 19:15 and 19:30 on 25 June 2026.
Lanes Closed : There are lane closures.
⏱ Still active — no changes from National Highways. Incident ongoing for 8h 9m. Monitoring continues.
Location : The M4 westbound exit slip at junction J11 .
Reason : Road traffic collision.
Status : Currently Active.
Time To Clear : The event is expected to clear between 19:15 and 19:30 on 25 June 2026.
Return To Normal : Normal traffic conditions are expected between 19:15 and 19:30 on 25 June 2026.
Lanes Closed : There are lane closures.
⏱ Still active — no changes from National Highways. Incident ongoing for 8h 44m. Monitoring continues.
Location : The M4 westbound exit slip at junction J11 .
Reason : Road traffic collision.
Status : Currently Active.
Time To Clear : The event is expected to clear between 19:15 and 19:30 on 25 June 2026.
Return To Normal : Normal traffic conditions are expected between 19:15 and 19:30 on 25 June 2026.
Lanes Closed : There are lane closures.
⏱ Still active — no changes from National Highways. Incident ongoing for 9h 19m. Monitoring continues.
Location : The M4 westbound exit slip at junction J11 .
Reason : Road traffic collision.
Status : Currently Active.
Time To Clear : The event is expected to clear between 19:15 and 19:30 on 25 June 2026.
Return To Normal : Normal traffic conditions are expected between 19:15 and 19:30 on 25 June 2026.
Lanes Closed : There are lane closures.
⏱ Still active — no changes from National Highways. Incident ongoing for 9h 54m. Monitoring continues.
Location : The M4 westbound exit slip at junction J11 .
Reason : Road traffic collision.
Status : Currently Active.
Time To Clear : The event is expected to clear between 19:15 and 19:30 on 25 June 2026.
Return To Normal : Normal traffic conditions are expected between 19:15 and 19:30 on 25 June 2026.
Lanes Closed : There are lane closures.
⏱ Still active — no changes from National Highways. Incident ongoing for 10h 34m. Monitoring continues.
Location : The M4 westbound exit slip at junction J11 .
Reason : Road traffic collision.
Status : Currently Active.
Time To Clear : The event is expected to clear between 19:15 and 19:30 on 25 June 2026.
Return To Normal : Normal traffic conditions are expected between 19:15 and 19:30 on 25 June 2026.
Lanes Closed : There are lane closures.
⏱ Still active — no changes from National Highways. Incident ongoing for 11h 9m. Monitoring continues.
Location : The M4 westbound exit slip at junction J11 .
Reason : Road traffic collision.
Status : Currently Active.
Time To Clear : The event is expected to clear between 19:15 and 19:30 on 25 June 2026.
Return To Normal : Normal traffic conditions are expected between 19:15 and 19:30 on 25 June 2026.
Lanes Closed : There are lane closures.
⏱ Still active — no changes from National Highways. Incident ongoing for 11h 44m. Monitoring continues.
Location : The M4 westbound exit slip at junction J11 .
Reason : Road traffic collision.
Status : Currently Active.
Time To Clear : The event is expected to clear between 19:15 and 19:30 on 25 June 2026.
Return To Normal : Normal traffic conditions are expected between 19:15 and 19:30 on 25 June 2026.
Lanes Closed : There are lane closures.
⏱ Still active — no changes from National Highways. Incident ongoing for 12h 19m. Monitoring continues.
Location : The M4 westbound exit slip at junction J11 .
Reason : Road traffic collision.
Status : Currently Active.
Time To Clear : The event is expected to clear between 19:15 and 19:30 on 25 June 2026.
Return To Normal : Normal traffic conditions are expected between 19:15 and 19:30 on 25 June 2026.
Lanes Closed : There are lane closures.
⏱ Still active — no changes from National Highways. Incident ongoing for 12h 59m. Monitoring continues.
Location : The M4 westbound exit slip at junction J11 .
Reason : Road traffic collision.
Status : Currently Active.
Time To Clear : The event is expected to clear between 19:15 and 19:30 on 25 June 2026.
Return To Normal : Normal traffic conditions are expected between 19:15 and 19:30 on 25 June 2026.
Lanes Closed : There are lane closures.
⏱ Still active — no changes from National Highways. Incident ongoing for 13h 34m. Monitoring continues.
Location : The M4 westbound exit slip at junction J11 .
Reason : Road traffic collision.
Status : Currently Active.
Time To Clear : The event is expected to clear between 19:15 and 19:30 on 25 June 2026.
Return To Normal : Normal traffic conditions are expected between 19:15 and 19:30 on 25 June 2026.
Lanes Closed : There are lane closures.
⏱ Still active — no changes from National Highways. Incident ongoing for 14h 14m. Monitoring continues.
Location : The M4 westbound exit slip at junction J11 .
Reason : Road traffic collision.
Status : Currently Active.
Time To Clear : The event is expected to clear between 19:15 and 19:30 on 25 June 2026.
Return To Normal : Normal traffic conditions are expected between 19:15 and 19:30 on 25 June 2026.
Lanes Closed : There are lane closures.
⏱ Still active — no changes from National Highways. Incident ongoing for 14h 49m. Monitoring continues.
Location : The M4 westbound exit slip at junction J11 .
Reason : Road traffic collision.
Status : Currently Active.
Time To Clear : The event is expected to clear between 19:15 and 19:30 on 25 June 2026.
Return To Normal : Normal traffic conditions are expected between 19:15 and 19:30 on 25 June 2026.
Lanes Closed : There are lane closures.
⏱ Still active — no changes from National Highways. Incident ongoing for 15h 29m. Monitoring continues.
Location : The M4 westbound exit slip at junction J11 .
Reason : Road traffic collision.
Status : Currently Active.
Time To Clear : The event is expected to clear between 19:15 and 19:30 on 25 June 2026.
Return To Normal : Normal traffic conditions are expected between 19:15 and 19:30 on 25 June 2026.
Lanes Closed : There are lane closures.
⏱ Still active — no changes from National Highways. Incident ongoing for 16h 4m. Monitoring continues.
Location : The M4 westbound exit slip at junction J11 .
Reason : Road traffic collision.
Status : Currently Active.
Time To Clear : The event is expected to clear between 19:15 and 19:30 on 25 June 2026.
Return To Normal : Normal traffic conditions are expected between 19:15 and 19:30 on 25 June 2026.
Lanes Closed : There are lane closures.
⏱ Still active — no changes from National Highways. Incident ongoing for 16h 40m. Monitoring continues.
Location : The M4 westbound exit slip at junction J11 .
Reason : Road traffic collision.
Status : Currently Active.
Time To Clear : The event is expected to clear between 19:15 and 19:30 on 25 June 2026.
Return To Normal : Normal traffic conditions are expected between 19:15 and 19:30 on 25 June 2026.
Lanes Closed : There are lane closures.
⏱ Still active — no changes from National Highways. Incident ongoing for 17h 14m. Monitoring continues.
Location : The M4 westbound exit slip at junction J11 .
Reason : Road traffic collision.
Status : Currently Active.
Time To Clear : The event is expected to clear between 19:15 and 19:30 on 25 June 2026.
Return To Normal : Normal traffic conditions are expected between 19:15 and 19:30 on 25 June 2026.
Lanes Closed : There are lane closures.
⏱ Still active — no changes from National Highways. Incident ongoing for 17h 49m. Monitoring continues.
Location : The M4 westbound exit slip at junction J11 .
Reason : Road traffic collision.
Status : Currently Active.
Time To Clear : The event is expected to clear between 19:15 and 19:30 on 25 June 2026.
Return To Normal : Normal traffic conditions are expected between 19:15 and 19:30 on 25 June 2026.
Lanes Closed : There are lane closures.
Wording as published by National Highways, recorded as it changed.
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