M4 closed J16–J17 westbound

Live Still reported at 00:29 UK time, since yesterday 23:28 (1 h 1 min).

Road closure on the M4 westbound at J16–J17 on Saturday 26 September 2026, from 23:28. Still reported at 00:29 UK time. Timeline of reports from National Highways.

1. ✕

   M4 westbound · J16–J17

   Road closed · cause not reported yet

   since yesterday 23:28 (1 h 1 min)

   National Highways

See the M4 on the live map M4 traffic now

Timeline

1. yesterday 23:28 National Highways: road closed

What the sources said

• M4 westbound between J16 and J17

Other recent incidents on the M4

• M4 crash J3 westbound · 00:02, still reported
• M4 closed J17–J18 westbound · yesterday 23:28, still reported
• M4 closed J20–J21 westbound · yesterday 22:43, still reported
• M4 closed J16–J17 westbound · yesterday 22:18, cleared after 38 min
• M4 closed J17–J18 westbound · yesterday 22:18, cleared after 38 min
• M4 closed J16–J17 westbound · yesterday 21:35, still reported
• M4 closed J19–J20 westbound · yesterday 21:35, still reported
• M4 closed J20–J21 westbound · yesterday 20:08, cleared after 2 h 17 min
• M4 crash J3–J2 westbound · yesterday 17:09, cleared after 42 min
• M4 crash J10–J8 eastbound · yesterday 12:42, cleared after 2 h 40 min

About this page

This page shows what the data sources reported about this event and when, merged from every source that reported it at the same place. It doesn't say what caused it or whether anyone was hurt: no source reports that. Times are UK time. For live alerts, follow @motorways.me on Bluesky.