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M4 Moderate Cleared

M4 westbound between J1 and J2 | Westbound | Congestion

27 Jun 2026, 13:55 Westbound 25 views

Incident Details

Location : The M4 westbound between junctions J1 and J2 .
Reason : Congestion.
Status : Currently Active.
Return To Normal : Normal traffic conditions are expected between 14:00 and 14:15 on 27 June 2026.
Delay : There are currently delays of 10 minutes against expected traffic.

M4
Moderate
Cleared
13:55, 27 Jun 2026

📜 Incident timeline

· First report

Location : The M4 westbound between junctions J1 and J2 .
Reason : Congestion.
Status : Currently Active.
Return To Normal : Normal traffic conditions are expected between 14:00 and 14:15 on 27 June 2026.
Delay : There are currently delays of 10 minutes against expected traffic.

· Update

Location : The M4 westbound between junctions J1 and J2 .
Reason : Congestion.
Status : Currently Active.
Return To Normal : Normal traffic conditions are expected between 14:00 and 14:15 on 27 June 2026.
Delay : There are currently delays of 10 minutes against expected traffic.

· Update

⏱ Still active — no changes from National Highways. Incident ongoing for 35 minutes. Delays of 10 minutes still recorded. Monitoring continues.

· Update

Location : The M4 westbound between junctions J1 and J2 .
Reason : Congestion.
Status : Currently Active.
Return To Normal : Normal traffic conditions are expected between 14:00 and 14:15 on 27 June 2026.
Delay : There are currently delays of 10 minutes against expected traffic.

· Update

⏱ Still active — no changes from National Highways. Incident ongoing for 1h 10m. Delays of 10 minutes still recorded. Monitoring continues.

· Update

Location : The M4 westbound between junctions J1 and J2 .
Reason : Congestion.
Status : Currently Active.
Return To Normal : Normal traffic conditions are expected between 14:00 and 14:15 on 27 June 2026.
Delay : There are currently delays of 10 minutes against expected traffic.

· Update

⏱ Still active — no changes from National Highways. Incident ongoing for 1h 45m. Delays of 10 minutes still recorded. Monitoring continues.

· Update

Location : The M4 westbound between junctions J1 and J2 .
Reason : Congestion.
Status : Currently Active.
Return To Normal : Normal traffic conditions are expected between 14:00 and 14:15 on 27 June 2026.
Delay : There are currently delays of 10 minutes against expected traffic.

· Update

⏱ Still active — no changes from National Highways. Incident ongoing for 2h 20m. Delays of 10 minutes still recorded. Monitoring continues.

· Update

Location : The M4 westbound between junctions J1 and J2 .
Reason : Congestion.
Status : Currently Active.
Return To Normal : Normal traffic conditions are expected between 14:00 and 14:15 on 27 June 2026.
Delay : There are currently delays of 10 minutes against expected traffic.

· Update

⏱ Still active — no changes from National Highways. Incident ongoing for 2h 55m. Delays of 10 minutes still recorded. Monitoring continues.

· Update

Location : The M4 westbound between junctions J1 and J2 .
Reason : Congestion.
Status : Currently Active.
Return To Normal : Normal traffic conditions are expected between 14:00 and 14:15 on 27 June 2026.
Delay : There are currently delays of 10 minutes against expected traffic.

· Update

⏱ Still active — no changes from National Highways. Incident ongoing for 3h 30m. Delays of 10 minutes still recorded. Monitoring continues.

· Update

Location : The M4 westbound between junctions J1 and J2 .
Reason : Congestion.
Status : Currently Active.
Return To Normal : Normal traffic conditions are expected between 14:00 and 14:15 on 27 June 2026.
Delay : There are currently delays of 10 minutes against expected traffic.

· Update

⏱ Still active — no changes from National Highways. Incident ongoing for 4h 5m. Delays of 10 minutes still recorded. Monitoring continues.

· Update

Location : The M4 westbound between junctions J1 and J2 .
Reason : Congestion.
Status : Currently Active.
Return To Normal : Normal traffic conditions are expected between 14:00 and 14:15 on 27 June 2026.
Delay : There are currently delays of 10 minutes against expected traffic.

· Update

⏱ Still active — no changes from National Highways. Incident ongoing for 4h 40m. Delays of 10 minutes still recorded. Monitoring continues.

· Update

Location : The M4 westbound between junctions J1 and J2 .
Reason : Congestion.
Status : Currently Active.
Return To Normal : Normal traffic conditions are expected between 14:00 and 14:15 on 27 June 2026.
Delay : There are currently delays of 10 minutes against expected traffic.

· Update

⏱ Still active — no changes from National Highways. Incident ongoing for 5h 15m. Delays of 10 minutes still recorded. Monitoring continues.

· Update

Location : The M4 westbound between junctions J1 and J2 .
Reason : Congestion.
Status : Currently Active.
Return To Normal : Normal traffic conditions are expected between 14:00 and 14:15 on 27 June 2026.
Delay : There are currently delays of 10 minutes against expected traffic.

· Update

⏱ Still active — no changes from National Highways. Incident ongoing for 5h 50m. Delays of 10 minutes still recorded. Monitoring continues.

· Update

Location : The M4 westbound between junctions J1 and J2 .
Reason : Congestion.
Status : Currently Active.
Return To Normal : Normal traffic conditions are expected between 14:00 and 14:15 on 27 June 2026.
Delay : There are currently delays of 10 minutes against expected traffic.

· Update

⏱ Still active — no changes from National Highways. Incident ongoing for 6h 25m. Delays of 10 minutes still recorded. Monitoring continues.

· Update

Location : The M4 westbound between junctions J1 and J2 .
Reason : Congestion.
Status : Currently Active.
Return To Normal : Normal traffic conditions are expected between 14:00 and 14:15 on 27 June 2026.
Delay : There are currently delays of 10 minutes against expected traffic.

· Update

⏱ Still active — no changes from National Highways. Incident ongoing for 7h 0m. Delays of 10 minutes still recorded. Monitoring continues.

· Update

Location : The M4 westbound between junctions J1 and J2 .
Reason : Congestion.
Status : Currently Active.
Return To Normal : Normal traffic conditions are expected between 14:00 and 14:15 on 27 June 2026.
Delay : There are currently delays of 10 minutes against expected traffic.

· Update

⏱ Still active — no changes from National Highways. Incident ongoing for 7h 35m. Delays of 10 minutes still recorded. Monitoring continues.

· Update

Location : The M4 westbound between junctions J1 and J2 .
Reason : Congestion.
Status : Currently Active.
Return To Normal : Normal traffic conditions are expected between 14:00 and 14:15 on 27 June 2026.
Delay : There are currently delays of 10 minutes against expected traffic.

· Update

⏱ Still active — no changes from National Highways. Incident ongoing for 8h 10m. Delays of 10 minutes still recorded. Monitoring continues.

· Update

Location : The M4 westbound between junctions J1 and J2 .
Reason : Congestion.
Status : Currently Active.
Return To Normal : Normal traffic conditions are expected between 14:00 and 14:15 on 27 June 2026.
Delay : There are currently delays of 10 minutes against expected traffic.

· Update

⏱ Still active — no changes from National Highways. Incident ongoing for 8h 50m. Delays of 10 minutes still recorded. Monitoring continues.

· Update

Location : The M4 westbound between junctions J1 and J2 .
Reason : Congestion.
Status : Currently Active.
Return To Normal : Normal traffic conditions are expected between 14:00 and 14:15 on 27 June 2026.
Delay : There are currently delays of 10 minutes against expected traffic.

· Update

⏱ Still active — no changes from National Highways. Incident ongoing for 9h 25m. Delays of 10 minutes still recorded. Monitoring continues.

· Update

Location : The M4 westbound between junctions J1 and J2 .
Reason : Congestion.
Status : Currently Active.
Return To Normal : Normal traffic conditions are expected between 14:00 and 14:15 on 27 June 2026.
Delay : There are currently delays of 10 minutes against expected traffic.

· Update

⏱ Still active — no changes from National Highways. Incident ongoing for 10h 0m. Delays of 10 minutes still recorded. Monitoring continues.

· Update

Location : The M4 westbound between junctions J1 and J2 .
Reason : Congestion.
Status : Currently Active.
Return To Normal : Normal traffic conditions are expected between 14:00 and 14:15 on 27 June 2026.
Delay : There are currently delays of 10 minutes against expected traffic.

· Update

⏱ Still active — no changes from National Highways. Incident ongoing for 10h 35m. Delays of 10 minutes still recorded. Monitoring continues.

· Update

Location : The M4 westbound between junctions J1 and J2 .
Reason : Congestion.
Status : Currently Active.
Return To Normal : Normal traffic conditions are expected between 14:00 and 14:15 on 27 June 2026.
Delay : There are currently delays of 10 minutes against expected traffic.

· Update

⏱ Still active — no changes from National Highways. Incident ongoing for 11h 10m. Delays of 10 minutes still recorded. Monitoring continues.

· Update

Location : The M4 westbound between junctions J1 and J2 .
Reason : Congestion.
Status : Currently Active.
Return To Normal : Normal traffic conditions are expected between 14:00 and 14:15 on 27 June 2026.
Delay : There are currently delays of 10 minutes against expected traffic.

· Update

⏱ Still active — no changes from National Highways. Incident ongoing for 11h 45m. Delays of 10 minutes still recorded. Monitoring continues.

· Update

Location : The M4 westbound between junctions J1 and J2 .
Reason : Congestion.
Status : Currently Active.
Return To Normal : Normal traffic conditions are expected between 14:00 and 14:15 on 27 June 2026.
Delay : There are currently delays of 10 minutes against expected traffic.

· Update

⏱ Still active — no changes from National Highways. Incident ongoing for 12h 25m. Delays of 10 minutes still recorded. Monitoring continues.

· Update

Location : The M4 westbound between junctions J1 and J2 .
Reason : Congestion.
Status : Currently Active.
Return To Normal : Normal traffic conditions are expected between 14:00 and 14:15 on 27 June 2026.
Delay : There are currently delays of 10 minutes against expected traffic.

· Update

⏱ Still active — no changes from National Highways. Incident ongoing for 13h 0m. Delays of 10 minutes still recorded. Monitoring continues.

· Update

Location : The M4 westbound between junctions J1 and J2 .
Reason : Congestion.
Status : Currently Active.
Return To Normal : Normal traffic conditions are expected between 14:00 and 14:15 on 27 June 2026.
Delay : There are currently delays of 10 minutes against expected traffic.

· Update

⏱ Still active — no changes from National Highways. Incident ongoing for 13h 40m. Delays of 10 minutes still recorded. Monitoring continues.

· Update

Location : The M4 westbound between junctions J1 and J2 .
Reason : Congestion.
Status : Currently Active.
Return To Normal : Normal traffic conditions are expected between 14:00 and 14:15 on 27 June 2026.
Delay : There are currently delays of 10 minutes against expected traffic.

· Update

⏱ Still active — no changes from National Highways. Incident ongoing for 14h 15m. Delays of 10 minutes still recorded. Monitoring continues.

· Update

Location : The M4 westbound between junctions J1 and J2 .
Reason : Congestion.
Status : Currently Active.
Return To Normal : Normal traffic conditions are expected between 14:00 and 14:15 on 27 June 2026.
Delay : There are currently delays of 10 minutes against expected traffic.

· Update

⏱ Still active — no changes from National Highways. Incident ongoing for 14h 50m. Delays of 10 minutes still recorded. Monitoring continues.

· Update

Location : The M4 westbound between junctions J1 and J2 .
Reason : Congestion.
Status : Currently Active.
Return To Normal : Normal traffic conditions are expected between 14:00 and 14:15 on 27 June 2026.
Delay : There are currently delays of 10 minutes against expected traffic.

· Update

⏱ Still active — no changes from National Highways. Incident ongoing for 15h 25m. Delays of 10 minutes still recorded. Monitoring continues.

· Update

Location : The M4 westbound between junctions J1 and J2 .
Reason : Congestion.
Status : Currently Active.
Return To Normal : Normal traffic conditions are expected between 14:00 and 14:15 on 27 June 2026.
Delay : There are currently delays of 10 minutes against expected traffic.

· Update

⏱ Still active — no changes from National Highways. Incident ongoing for 16h 5m. Delays of 10 minutes still recorded. Monitoring continues.

· Update

Location : The M4 westbound between junctions J1 and J2 .
Reason : Congestion.
Status : Currently Active.
Return To Normal : Normal traffic conditions are expected between 14:00 and 14:15 on 27 June 2026.
Delay : There are currently delays of 10 minutes against expected traffic.

· Update

⏱ Still active — no changes from National Highways. Incident ongoing for 16h 45m. Delays of 10 minutes still recorded. Monitoring continues.

· Update

Location : The M4 westbound between junctions J1 and J2 .
Reason : Congestion.
Status : Currently Active.
Return To Normal : Normal traffic conditions are expected between 14:00 and 14:15 on 27 June 2026.
Delay : There are currently delays of 10 minutes against expected traffic.

· Update

⏱ Still active — no changes from National Highways. Incident ongoing for 17h 20m. Delays of 10 minutes still recorded. Monitoring continues.

· Update

Location : The M4 westbound between junctions J1 and J2 .
Reason : Congestion.
Status : Currently Active.
Return To Normal : Normal traffic conditions are expected between 14:00 and 14:15 on 27 June 2026.
Delay : There are currently delays of 10 minutes against expected traffic.

· Update

⏱ Still active — no changes from National Highways. Incident ongoing for 18h 0m. Delays of 10 minutes still recorded. Monitoring continues.

· Update

Location : The M4 westbound between junctions J1 and J2 .
Reason : Congestion.
Status : Currently Active.
Return To Normal : Normal traffic conditions are expected between 14:00 and 14:15 on 27 June 2026.
Delay : There are currently delays of 10 minutes against expected traffic.

· Update

⏱ Still active — no changes from National Highways. Incident ongoing for 18h 40m. Delays of 10 minutes still recorded. Monitoring continues.

· Update

Location : The M4 westbound between junctions J1 and J2 .
Reason : Congestion.
Status : Currently Active.
Return To Normal : Normal traffic conditions are expected between 14:00 and 14:15 on 27 June 2026.
Delay : There are currently delays of 10 minutes against expected traffic.

· Update

⏱ Still active — no changes from National Highways. Incident ongoing for 19h 15m. Delays of 10 minutes still recorded. Monitoring continues.

· Update

Location : The M4 westbound between junctions J1 and J2 .
Reason : Congestion.
Status : Currently Active.
Return To Normal : Normal traffic conditions are expected between 14:00 and 14:15 on 27 June 2026.
Delay : There are currently delays of 10 minutes against expected traffic.

· Update

⏱ Still active — no changes from National Highways. Incident ongoing for 19h 55m. Delays of 10 minutes still recorded. Monitoring continues.

· Update

Location : The M4 westbound between junctions J1 and J2 .
Reason : Congestion.
Status : Currently Active.
Return To Normal : Normal traffic conditions are expected between 14:00 and 14:15 on 27 June 2026.
Delay : There are currently delays of 10 minutes against expected traffic.

· Update

⏱ Still active — no changes from National Highways. Incident ongoing for 20h 35m. Delays of 10 minutes still recorded. Monitoring continues.

· Update

Location : The M4 westbound between junctions J1 and J2 .
Reason : Congestion.
Status : Currently Active.
Return To Normal : Normal traffic conditions are expected between 14:00 and 14:15 on 27 June 2026.
Delay : There are currently delays of 10 minutes against expected traffic.

· Update

⏱ Still active — no changes from National Highways. Incident ongoing for 21h 10m. Delays of 10 minutes still recorded. Monitoring continues.

· Update

Location : The M4 westbound between junctions J1 and J2 .
Reason : Congestion.
Status : Currently Active.
Return To Normal : Normal traffic conditions are expected between 14:00 and 14:15 on 27 June 2026.
Delay : There are currently delays of 10 minutes against expected traffic.

· Update

⏱ Still active — no changes from National Highways. Incident ongoing for 21h 50m. Delays of 10 minutes still recorded. Monitoring continues.

· Update

Location : The M4 westbound between junctions J1 and J2 .
Reason : Congestion.
Status : Currently Active.
Return To Normal : Normal traffic conditions are expected between 14:00 and 14:15 on 27 June 2026.
Delay : There are currently delays of 10 minutes against expected traffic.

· Update

⏱ Still active — no changes from National Highways. Incident ongoing for 22h 25m. Delays of 10 minutes still recorded. Monitoring continues.

· Update

Location : The M4 westbound between junctions J1 and J2 .
Reason : Congestion.
Status : Currently Active.
Return To Normal : Normal traffic conditions are expected between 14:00 and 14:15 on 27 June 2026.
Delay : There are currently delays of 10 minutes against expected traffic.

· Update

⏱ Still active — no changes from National Highways. Incident ongoing for 23h 0m. Delays of 10 minutes still recorded. Monitoring continues.

· Update

Location : The M4 westbound between junctions J1 and J2 .
Reason : Congestion.
Status : Currently Active.
Return To Normal : Normal traffic conditions are expected between 14:00 and 14:15 on 27 June 2026.
Delay : There are currently delays of 10 minutes against expected traffic.

· Update

⏱ Still active — no changes from National Highways. Incident ongoing for 23h 35m. Delays of 10 minutes still recorded. Monitoring continues.

· Update

Location : The M4 westbound between junctions J1 and J2 .
Reason : Congestion.
Status : Currently Active.
Return To Normal : Normal traffic conditions are expected between 14:00 and 14:15 on 27 June 2026.
Delay : There are currently delays of 10 minutes against expected traffic.

· Update

⏱ Still active — no changes from National Highways. Incident ongoing for 24h 10m. Delays of 10 minutes still recorded. Monitoring continues.

· Update

Location : The M4 westbound between junctions J1 and J2 .
Reason : Congestion.
Status : Currently Active.
Return To Normal : Normal traffic conditions are expected between 14:00 and 14:15 on 27 June 2026.
Delay : There are currently delays of 10 minutes against expected traffic.

· Update

⏱ Still active — no changes from National Highways. Incident ongoing for 24h 45m. Delays of 10 minutes still recorded. Monitoring continues.

· Update

Location : The M4 westbound between junctions J1 and J2 .
Reason : Congestion.
Status : Currently Active.
Return To Normal : Normal traffic conditions are expected between 14:00 and 14:15 on 27 June 2026.
Delay : There are currently delays of 10 minutes against expected traffic.

· Update

⏱ Still active — no changes from National Highways. Incident ongoing for 25h 20m. Delays of 10 minutes still recorded. Monitoring continues.

· Update

Location : The M4 westbound between junctions J1 and J2 .
Reason : Congestion.
Status : Currently Active.
Return To Normal : Normal traffic conditions are expected between 14:00 and 14:15 on 27 June 2026.
Delay : There are currently delays of 10 minutes against expected traffic.

· Update

⏱ Still active — no changes from National Highways. Incident ongoing for 26h 0m. Delays of 10 minutes still recorded. Monitoring continues.

· Update

Location : The M4 westbound between junctions J1 and J2 .
Reason : Congestion.
Status : Currently Active.
Return To Normal : Normal traffic conditions are expected between 14:00 and 14:15 on 27 June 2026.
Delay : There are currently delays of 10 minutes against expected traffic.

· Update

⏱ Still active — no changes from National Highways. Incident ongoing for 26h 35m. Delays of 10 minutes still recorded. Monitoring continues.

· Update

Location : The M4 westbound between junctions J1 and J2 .
Reason : Congestion.
Status : Currently Active.
Return To Normal : Normal traffic conditions are expected between 14:00 and 14:15 on 27 June 2026.
Delay : There are currently delays of 10 minutes against expected traffic.

· Update

⏱ Still active — no changes from National Highways. Incident ongoing for 27h 10m. Delays of 10 minutes still recorded. Monitoring continues.

· Update

Location : The M4 westbound between junctions J1 and J2 .
Reason : Congestion.
Status : Currently Active.
Return To Normal : Normal traffic conditions are expected between 14:00 and 14:15 on 27 June 2026.
Delay : There are currently delays of 10 minutes against expected traffic.

· Update

⏱ Still active — no changes from National Highways. Incident ongoing for 27h 45m. Delays of 10 minutes still recorded. Monitoring continues.

· Update

Location : The M4 westbound between junctions J1 and J2 .
Reason : Congestion.
Status : Currently Active.
Return To Normal : Normal traffic conditions are expected between 14:00 and 14:15 on 27 June 2026.
Delay : There are currently delays of 10 minutes against expected traffic.

· Update

⏱ Still active — no changes from National Highways. Incident ongoing for 28h 20m. Delays of 10 minutes still recorded. Monitoring continues.

· Update

Location : The M4 westbound between junctions J1 and J2 .
Reason : Congestion.
Status : Currently Active.
Return To Normal : Normal traffic conditions are expected between 14:00 and 14:15 on 27 June 2026.
Delay : There are currently delays of 10 minutes against expected traffic.

· Update

⏱ Still active — no changes from National Highways. Incident ongoing for 28h 55m. Delays of 10 minutes still recorded. Monitoring continues.

· Update

Location : The M4 westbound between junctions J1 and J2 .
Reason : Congestion.
Status : Currently Active.
Return To Normal : Normal traffic conditions are expected between 14:00 and 14:15 on 27 June 2026.
Delay : There are currently delays of 10 minutes against expected traffic.

· Update

⏱ Still active — no changes from National Highways. Incident ongoing for 29h 30m. Delays of 10 minutes still recorded. Monitoring continues.

· Update

Location : The M4 westbound between junctions J1 and J2 .
Reason : Congestion.
Status : Currently Active.
Return To Normal : Normal traffic conditions are expected between 14:00 and 14:15 on 27 June 2026.
Delay : There are currently delays of 10 minutes against expected traffic.

· Update

⏱ Still active — no changes from National Highways. Incident ongoing for 30h 5m. Delays of 10 minutes still recorded. Monitoring continues.

· Update

Location : The M4 westbound between junctions J1 and J2 .
Reason : Congestion.
Status : Currently Active.
Return To Normal : Normal traffic conditions are expected between 14:00 and 14:15 on 27 June 2026.
Delay : There are currently delays of 10 minutes against expected traffic.

· Update

⏱ Still active — no changes from National Highways. Incident ongoing for 30h 40m. Delays of 10 minutes still recorded. Monitoring continues.

· Update

Location : The M4 westbound between junctions J1 and J2 .
Reason : Congestion.
Status : Currently Active.
Return To Normal : Normal traffic conditions are expected between 14:00 and 14:15 on 27 June 2026.
Delay : There are currently delays of 10 minutes against expected traffic.

· Update

⏱ Still active — no changes from National Highways. Incident ongoing for 31h 15m. Delays of 10 minutes still recorded. Monitoring continues.

· Update

Location : The M4 westbound between junctions J1 and J2 .
Reason : Congestion.
Status : Currently Active.
Return To Normal : Normal traffic conditions are expected between 14:00 and 14:15 on 27 June 2026.
Delay : There are currently delays of 10 minutes against expected traffic.

· Update

⏱ Still active — no changes from National Highways. Incident ongoing for 31h 55m. Delays of 10 minutes still recorded. Monitoring continues.

· Update

Location : The M4 westbound between junctions J1 and J2 .
Reason : Congestion.
Status : Currently Active.
Return To Normal : Normal traffic conditions are expected between 14:00 and 14:15 on 27 June 2026.
Delay : There are currently delays of 10 minutes against expected traffic.

· Update

⏱ Still active — no changes from National Highways. Incident ongoing for 32h 30m. Delays of 10 minutes still recorded. Monitoring continues.

· Update

Location : The M4 westbound between junctions J1 and J2 .
Reason : Congestion.
Status : Currently Active.
Return To Normal : Normal traffic conditions are expected between 14:00 and 14:15 on 27 June 2026.
Delay : There are currently delays of 10 minutes against expected traffic.

· Update

⏱ Still active — no changes from National Highways. Incident ongoing for 33h 5m. Delays of 10 minutes still recorded. Monitoring continues.

· Update

Location : The M4 westbound between junctions J1 and J2 .
Reason : Congestion.
Status : Currently Active.
Return To Normal : Normal traffic conditions are expected between 14:00 and 14:15 on 27 June 2026.
Delay : There are currently delays of 10 minutes against expected traffic.

· Update

⏱ Still active — no changes from National Highways. Incident ongoing for 33h 45m. Delays of 10 minutes still recorded. Monitoring continues.

· Update

Location : The M4 westbound between junctions J1 and J2 .
Reason : Congestion.
Status : Currently Active.
Return To Normal : Normal traffic conditions are expected between 14:00 and 14:15 on 27 June 2026.
Delay : There are currently delays of 10 minutes against expected traffic.

· Update

⏱ Still active — no changes from National Highways. Incident ongoing for 34h 25m. Delays of 10 minutes still recorded. Monitoring continues.

· Update

Location : The M4 westbound between junctions J1 and J2 .
Reason : Congestion.
Status : Currently Active.
Return To Normal : Normal traffic conditions are expected between 14:00 and 14:15 on 27 June 2026.
Delay : There are currently delays of 10 minutes against expected traffic.

· Update

⏱ Still active — no changes from National Highways. Incident ongoing for 35h 0m. Delays of 10 minutes still recorded. Monitoring continues.

· Update

Location : The M4 westbound between junctions J1 and J2 .
Reason : Congestion.
Status : Currently Active.
Return To Normal : Normal traffic conditions are expected between 14:00 and 14:15 on 27 June 2026.
Delay : There are currently delays of 10 minutes against expected traffic.

· Update

⏱ Still active — no changes from National Highways. Incident ongoing for 35h 35m. Delays of 10 minutes still recorded. Monitoring continues.

· Update

Location : The M4 westbound between junctions J1 and J2 .
Reason : Congestion.
Status : Currently Active.
Return To Normal : Normal traffic conditions are expected between 14:00 and 14:15 on 27 June 2026.
Delay : There are currently delays of 10 minutes against expected traffic.

· Update

⏱ Still active — no changes from National Highways. Incident ongoing for 36h 10m. Delays of 10 minutes still recorded. Monitoring continues.

· Update

Location : The M4 westbound between junctions J1 and J2 .
Reason : Congestion.
Status : Currently Active.
Return To Normal : Normal traffic conditions are expected between 14:00 and 14:15 on 27 June 2026.
Delay : There are currently delays of 10 minutes against expected traffic.

· Update

⏱ Still active — no changes from National Highways. Incident ongoing for 36h 45m. Delays of 10 minutes still recorded. Monitoring continues.

· Update

Location : The M4 westbound between junctions J1 and J2 .
Reason : Congestion.
Status : Currently Active.
Return To Normal : Normal traffic conditions are expected between 14:00 and 14:15 on 27 June 2026.
Delay : There are currently delays of 10 minutes against expected traffic.

· Update

⏱ Still active — no changes from National Highways. Incident ongoing for 37h 20m. Delays of 10 minutes still recorded. Monitoring continues.

· Update

Location : The M4 westbound between junctions J1 and J2 .
Reason : Congestion.
Status : Currently Active.
Return To Normal : Normal traffic conditions are expected between 14:00 and 14:15 on 27 June 2026.
Delay : There are currently delays of 10 minutes against expected traffic.

· Update

⏱ Still active — no changes from National Highways. Incident ongoing for 37h 55m. Delays of 10 minutes still recorded. Monitoring continues.

· Update

Location : The M4 westbound between junctions J1 and J2 .
Reason : Congestion.
Status : Currently Active.
Return To Normal : Normal traffic conditions are expected between 14:00 and 14:15 on 27 June 2026.
Delay : There are currently delays of 10 minutes against expected traffic.

· Update

⏱ Still active — no changes from National Highways. Incident ongoing for 38h 30m. Delays of 10 minutes still recorded. Monitoring continues.

· Update

Location : The M4 westbound between junctions J1 and J2 .
Reason : Congestion.
Status : Currently Active.
Return To Normal : Normal traffic conditions are expected between 14:00 and 14:15 on 27 June 2026.
Delay : There are currently delays of 10 minutes against expected traffic.

· Update

⏱ Still active — no changes from National Highways. Incident ongoing for 39h 5m. Delays of 10 minutes still recorded. Monitoring continues.

· Update

Location : The M4 westbound between junctions J1 and J2 .
Reason : Congestion.
Status : Currently Active.
Return To Normal : Normal traffic conditions are expected between 14:00 and 14:15 on 27 June 2026.
Delay : There are currently delays of 10 minutes against expected traffic.

· Update

⏱ Still active — no changes from National Highways. Incident ongoing for 39h 40m. Delays of 10 minutes still recorded. Monitoring continues.

· Update

Location : The M4 westbound between junctions J1 and J2 .
Reason : Congestion.
Status : Currently Active.
Return To Normal : Normal traffic conditions are expected between 14:00 and 14:15 on 27 June 2026.
Delay : There are currently delays of 10 minutes against expected traffic.

· Update

⏱ Still active — no changes from National Highways. Incident ongoing for 40h 15m. Delays of 10 minutes still recorded. Monitoring continues.

· Update

Location : The M4 westbound between junctions J1 and J2 .
Reason : Congestion.
Status : Currently Active.
Return To Normal : Normal traffic conditions are expected between 14:00 and 14:15 on 27 June 2026.
Delay : There are currently delays of 10 minutes against expected traffic.

· Update

⏱ Still active — no changes from National Highways. Incident ongoing for 40h 55m. Delays of 10 minutes still recorded. Monitoring continues.

· Update

Location : The M4 westbound between junctions J1 and J2 .
Reason : Congestion.
Status : Currently Active.
Return To Normal : Normal traffic conditions are expected between 14:00 and 14:15 on 27 June 2026.
Delay : There are currently delays of 10 minutes against expected traffic.

· Update

⏱ Still active — no changes from National Highways. Incident ongoing for 41h 35m. Delays of 10 minutes still recorded. Monitoring continues.

· Final update

Location : The M4 westbound between junctions J1 and J2 .
Reason : Congestion.
Status : Currently Active.
Return To Normal : Normal traffic conditions are expected between 14:00 and 14:15 on 27 June 2026.
Delay : There are currently delays of 10 minutes against expected traffic.

Wording as published by National Highways, recorded as it changed.

📢 Share This Incident

M4 — M4 westbound between J1 and J2 | Westbound | Congestion Full details 👉 https://uktrafficupdates.uk/traffic/incidents/26183094-m4-westbound-between-j1-and-j2-westbound-congestion/

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