🚨 Emergency? Call 999 · Motorway breakdown? 0300 123 5000
LIVE
Loading incidents...

Start typing to search

Find traffic updates, service providers, tools & more

📢 Seen an incident on this road? Report it in 30 seconds Report ›
LIVE MON–FRI Watch
🏠 Traffic Hub 🚨 Major 🟠 Roadworks 🗺️ Live Map 🏴 All England 🔴 All Incidents 📊 Regions 🕐 Worst Commute 🔍 Was I Affected? 💬 Discussions
M4 Severe Cleared

M4 westbound between J5 and J6 | Westbound | Accident

15 Apr 2026, 06:37 Westbound 70 views

Incident Details

Location : The M4 westbound between junctions J5 and J6 .
Lane Closures : The hard shoulder and lane 1 are closed.
Reason : Road traffic collision.
Status : Currently Active.
Time To Clear : The event is expected to clear between 08:30 and 08:45 on 15 April 2026.
Return To Normal : Normal traffic conditions are expected between 08:30 and 08:45 on 15 April 2026.
Lanes Closed : There is one of four lanes closed.

M4
Severe
Cleared
06:37, 15 Apr 2026

📜 Incident timeline

· First report

Location : The M4 westbound between junctions J5 and J6 .
Lane Closures : The hard shoulder and lane 1 are closed.
Reason : Road traffic collision.
Status : Currently Active.
Time To Clear : The event is expected to clear between 08:30 and 08:45 on 15 April 2026.
Return To Normal : Normal traffic conditions are expected between 08:30 and 08:45 on 15 April 2026.
Lanes Closed : There is one of four lanes closed.

· Update

⏱ Still active — no changes from National Highways. Incident ongoing for 7h 3m. Monitoring continues.

· Update

Location : The M4 westbound between junctions J5 and J6 .
Lane Closures : The hard shoulder and lane 1 are closed.
Reason : Road traffic collision.
Status : Currently Active.
Time To Clear : The event is expected to clear between 08:30 and 08:45 on 15 April 2026.
Return To Normal : Normal traffic conditions are expected between 08:30 and 08:45 on 15 April 2026.
Lanes Closed : There is one of four lanes closed.

· Update

⏱ Still active — no changes from National Highways. Incident ongoing for 7h 43m. Monitoring continues.

· Update

Location : The M4 westbound between junctions J5 and J6 .
Lane Closures : The hard shoulder and lane 1 are closed.
Reason : Road traffic collision.
Status : Currently Active.
Time To Clear : The event is expected to clear between 08:30 and 08:45 on 15 April 2026.
Return To Normal : Normal traffic conditions are expected between 08:30 and 08:45 on 15 April 2026.
Lanes Closed : There is one of four lanes closed.

· Update

⏱ Still active — no changes from National Highways. Incident ongoing for 8h 18m. Monitoring continues.

· Update

Location : The M4 westbound between junctions J5 and J6 .
Lane Closures : The hard shoulder and lane 1 are closed.
Reason : Road traffic collision.
Status : Currently Active.
Time To Clear : The event is expected to clear between 08:30 and 08:45 on 15 April 2026.
Return To Normal : Normal traffic conditions are expected between 08:30 and 08:45 on 15 April 2026.
Lanes Closed : There is one of four lanes closed.

· Update

⏱ Still active — no changes from National Highways. Incident ongoing for 8h 53m. Monitoring continues.

· Update

Location : The M4 westbound between junctions J5 and J6 .
Lane Closures : The hard shoulder and lane 1 are closed.
Reason : Road traffic collision.
Status : Currently Active.
Time To Clear : The event is expected to clear between 08:30 and 08:45 on 15 April 2026.
Return To Normal : Normal traffic conditions are expected between 08:30 and 08:45 on 15 April 2026.
Lanes Closed : There is one of four lanes closed.

· Update

⏱ Still active — no changes from National Highways. Incident ongoing for 11h 58m. Monitoring continues.

· Update

Location : The M4 westbound between junctions J5 and J6 .
Lane Closures : The hard shoulder and lane 1 are closed.
Reason : Road traffic collision.
Status : Currently Active.
Time To Clear : The event is expected to clear between 08:30 and 08:45 on 15 April 2026.
Return To Normal : Normal traffic conditions are expected between 08:30 and 08:45 on 15 April 2026.
Lanes Closed : There is one of four lanes closed.

· Update

⏱ Still active — no changes from National Highways. Incident ongoing for 12h 33m. Monitoring continues.

· Update

Location : The M4 westbound between junctions J5 and J6 .
Lane Closures : The hard shoulder and lane 1 are closed.
Reason : Road traffic collision.
Status : Currently Active.
Time To Clear : The event is expected to clear between 08:30 and 08:45 on 15 April 2026.
Return To Normal : Normal traffic conditions are expected between 08:30 and 08:45 on 15 April 2026.
Lanes Closed : There is one of four lanes closed.

· Update

⏱ Still active — no changes from National Highways. Incident ongoing for 13h 13m. Monitoring continues.

· Update

Location : The M4 westbound between junctions J5 and J6 .
Lane Closures : The hard shoulder and lane 1 are closed.
Reason : Road traffic collision.
Status : Currently Active.
Time To Clear : The event is expected to clear between 08:30 and 08:45 on 15 April 2026.
Return To Normal : Normal traffic conditions are expected between 08:30 and 08:45 on 15 April 2026.
Lanes Closed : There is one of four lanes closed.

· Update

⏱ Still active — no changes from National Highways. Incident ongoing for 13h 48m. Monitoring continues.

· Update

Location : The M4 westbound between junctions J5 and J6 .
Lane Closures : The hard shoulder and lane 1 are closed.
Reason : Road traffic collision.
Status : Currently Active.
Time To Clear : The event is expected to clear between 08:30 and 08:45 on 15 April 2026.
Return To Normal : Normal traffic conditions are expected between 08:30 and 08:45 on 15 April 2026.
Lanes Closed : There is one of four lanes closed.

· Update

⏱ Still active — no changes from National Highways. Incident ongoing for 14h 23m. Monitoring continues.

· Update

Location : The M4 westbound between junctions J5 and J6 .
Lane Closures : The hard shoulder and lane 1 are closed.
Reason : Road traffic collision.
Status : Currently Active.
Time To Clear : The event is expected to clear between 08:30 and 08:45 on 15 April 2026.
Return To Normal : Normal traffic conditions are expected between 08:30 and 08:45 on 15 April 2026.
Lanes Closed : There is one of four lanes closed.

· Update

⏱ Still active — no changes from National Highways. Incident ongoing for 14h 58m. Monitoring continues.

· Update

Location : The M4 westbound between junctions J5 and J6 .
Lane Closures : The hard shoulder and lane 1 are closed.
Reason : Road traffic collision.
Status : Currently Active.
Time To Clear : The event is expected to clear between 08:30 and 08:45 on 15 April 2026.
Return To Normal : Normal traffic conditions are expected between 08:30 and 08:45 on 15 April 2026.
Lanes Closed : There is one of four lanes closed.

· Update

⏱ Still active — no changes from National Highways. Incident ongoing for 15h 33m. Monitoring continues.

· Update

Location : The M4 westbound between junctions J5 and J6 .
Lane Closures : The hard shoulder and lane 1 are closed.
Reason : Road traffic collision.
Status : Currently Active.
Time To Clear : The event is expected to clear between 08:30 and 08:45 on 15 April 2026.
Return To Normal : Normal traffic conditions are expected between 08:30 and 08:45 on 15 April 2026.
Lanes Closed : There is one of four lanes closed.

· Update

⏱ Still active — no changes from National Highways. Incident ongoing for 16h 8m. Monitoring continues.

· Update

Location : The M4 westbound between junctions J5 and J6 .
Lane Closures : The hard shoulder and lane 1 are closed.
Reason : Road traffic collision.
Status : Currently Active.
Time To Clear : The event is expected to clear between 08:30 and 08:45 on 15 April 2026.
Return To Normal : Normal traffic conditions are expected between 08:30 and 08:45 on 15 April 2026.
Lanes Closed : There is one of four lanes closed.

· Update

⏱ Still active — no changes from National Highways. Incident ongoing for 16h 48m. Monitoring continues.

· Update

Location : The M4 westbound between junctions J5 and J6 .
Lane Closures : The hard shoulder and lane 1 are closed.
Reason : Road traffic collision.
Status : Currently Active.
Time To Clear : The event is expected to clear between 08:30 and 08:45 on 15 April 2026.
Return To Normal : Normal traffic conditions are expected between 08:30 and 08:45 on 15 April 2026.
Lanes Closed : There is one of four lanes closed.

· Update

⏱ Still active — no changes from National Highways. Incident ongoing for 17h 28m. Monitoring continues.

· Update

Location : The M4 westbound between junctions J5 and J6 .
Lane Closures : The hard shoulder and lane 1 are closed.
Reason : Road traffic collision.
Status : Currently Active.
Time To Clear : The event is expected to clear between 08:30 and 08:45 on 15 April 2026.
Return To Normal : Normal traffic conditions are expected between 08:30 and 08:45 on 15 April 2026.
Lanes Closed : There is one of four lanes closed.

· Update

⏱ Still active — no changes from National Highways. Incident ongoing for 18h 3m. Monitoring continues.

· Update

Location : The M4 westbound between junctions J5 and J6 .
Lane Closures : The hard shoulder and lane 1 are closed.
Reason : Road traffic collision.
Status : Currently Active.
Time To Clear : The event is expected to clear between 08:30 and 08:45 on 15 April 2026.
Return To Normal : Normal traffic conditions are expected between 08:30 and 08:45 on 15 April 2026.
Lanes Closed : There is one of four lanes closed.

· Update

⏱ Still active — no changes from National Highways. Incident ongoing for 18h 38m. Monitoring continues.

· Update

Location : The M4 westbound between junctions J5 and J6 .
Lane Closures : The hard shoulder and lane 1 are closed.
Reason : Road traffic collision.
Status : Currently Active.
Time To Clear : The event is expected to clear between 08:30 and 08:45 on 15 April 2026.
Return To Normal : Normal traffic conditions are expected between 08:30 and 08:45 on 15 April 2026.
Lanes Closed : There is one of four lanes closed.

· Update

⏱ Still active — no changes from National Highways. Incident ongoing for 19h 13m. Monitoring continues.

· Update

Location : The M4 westbound between junctions J5 and J6 .
Lane Closures : The hard shoulder and lane 1 are closed.
Reason : Road traffic collision.
Status : Currently Active.
Time To Clear : The event is expected to clear between 08:30 and 08:45 on 15 April 2026.
Return To Normal : Normal traffic conditions are expected between 08:30 and 08:45 on 15 April 2026.
Lanes Closed : There is one of four lanes closed.

· Update

⏱ Still active — no changes from National Highways. Incident ongoing for 19h 48m. Monitoring continues.

· Update

Location : The M4 westbound between junctions J5 and J6 .
Lane Closures : The hard shoulder and lane 1 are closed.
Reason : Road traffic collision.
Status : Currently Active.
Time To Clear : The event is expected to clear between 08:30 and 08:45 on 15 April 2026.
Return To Normal : Normal traffic conditions are expected between 08:30 and 08:45 on 15 April 2026.
Lanes Closed : There is one of four lanes closed.

· Update

⏱ Still active — no changes from National Highways. Incident ongoing for 20h 28m. Monitoring continues.

· Update

Location : The M4 westbound between junctions J5 and J6 .
Lane Closures : The hard shoulder and lane 1 are closed.
Reason : Road traffic collision.
Status : Currently Active.
Time To Clear : The event is expected to clear between 08:30 and 08:45 on 15 April 2026.
Return To Normal : Normal traffic conditions are expected between 08:30 and 08:45 on 15 April 2026.
Lanes Closed : There is one of four lanes closed.

· Update

⏱ Still active — no changes from National Highways. Incident ongoing for 21h 3m. Monitoring continues.

· Update

Location : The M4 westbound between junctions J5 and J6 .
Lane Closures : The hard shoulder and lane 1 are closed.
Reason : Road traffic collision.
Status : Currently Active.
Time To Clear : The event is expected to clear between 08:30 and 08:45 on 15 April 2026.
Return To Normal : Normal traffic conditions are expected between 08:30 and 08:45 on 15 April 2026.
Lanes Closed : There is one of four lanes closed.

· Update

⏱ Still active — no changes from National Highways. Incident ongoing for 21h 38m. Monitoring continues.

· Update

Location : The M4 westbound between junctions J5 and J6 .
Lane Closures : The hard shoulder and lane 1 are closed.
Reason : Road traffic collision.
Status : Currently Active.
Time To Clear : The event is expected to clear between 08:30 and 08:45 on 15 April 2026.
Return To Normal : Normal traffic conditions are expected between 08:30 and 08:45 on 15 April 2026.
Lanes Closed : There is one of four lanes closed.

· Update

⏱ Still active — no changes from National Highways. Incident ongoing for 22h 13m. Monitoring continues.

· Update

Location : The M4 westbound between junctions J5 and J6 .
Lane Closures : The hard shoulder and lane 1 are closed.
Reason : Road traffic collision.
Status : Currently Active.
Time To Clear : The event is expected to clear between 08:30 and 08:45 on 15 April 2026.
Return To Normal : Normal traffic conditions are expected between 08:30 and 08:45 on 15 April 2026.
Lanes Closed : There is one of four lanes closed.

· Update

⏱ Still active — no changes from National Highways. Incident ongoing for 22h 48m. Monitoring continues.

· Update

Location : The M4 westbound between junctions J5 and J6 .
Lane Closures : The hard shoulder and lane 1 are closed.
Reason : Road traffic collision.
Status : Currently Active.
Time To Clear : The event is expected to clear between 08:30 and 08:45 on 15 April 2026.
Return To Normal : Normal traffic conditions are expected between 08:30 and 08:45 on 15 April 2026.
Lanes Closed : There is one of four lanes closed.

· Update

⏱ Still active — no changes from National Highways. Incident ongoing for 23h 23m. Monitoring continues.

· Update

Location : The M4 westbound between junctions J5 and J6 .
Lane Closures : The hard shoulder and lane 1 are closed.
Reason : Road traffic collision.
Status : Currently Active.
Time To Clear : The event is expected to clear between 08:30 and 08:45 on 15 April 2026.
Return To Normal : Normal traffic conditions are expected between 08:30 and 08:45 on 15 April 2026.
Lanes Closed : There is one of four lanes closed.

· Update

⏱ Still active — no changes from National Highways. Incident ongoing for 23h 58m. Monitoring continues.

· Update

Location : The M4 westbound between junctions J5 and J6 .
Lane Closures : The hard shoulder and lane 1 are closed.
Reason : Road traffic collision.
Status : Currently Active.
Time To Clear : The event is expected to clear between 08:30 and 08:45 on 15 April 2026.
Return To Normal : Normal traffic conditions are expected between 08:30 and 08:45 on 15 April 2026.
Lanes Closed : There is one of four lanes closed.

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

📢 Share This Incident

M4 — M4 westbound between J5 and J6 | Westbound | Accident Full details 👉 https://uktrafficupdates.uk/traffic/incidents/25711274-m4-westbound-between-j5-and-j6-westbound-accident/

Was I Affected?

Enter when you were travelling on M4 to check

🏠Home 🗺️Map 📊Regions 🆘Help
🔍
⚡ Early Warning System
We detected congestion building on the M4 28 minutes before this incident was officially reported.
In the last 30 days, we've detected 20 incidents on the M4 an average of 1265 minutes early.
Get Early Warnings for M4 → From £2.99/mo · 7-day free trial