M4 closed J16–J17 westbound

Live Still reported at 23:43 UK time, since 22:41 (1 h 2 min).

Road closure on the M4 westbound at J16–J17 on Monday 28 September 2026, from 22:41. Still reported at 23:43 UK time. Timeline of reports from National Highways.

1. ✕

   M4 westbound · J16–J17

   Road closed · cause not reported yet

   since 22:41 (1 h 2 min)

   National Highways

See the M4 on the live map M4 traffic now

Timeline

1. 22:41 National Highways: road closed

What the sources said

• M4 westbound between J16 and J17

Other recent incidents on the M4

• M4 closed J19–J20 westbound · 22:41, still reported
• M4 closed J19 westbound · 22:41, cleared after 54 min
• M4 closed J12–J13 westbound · 22:40, still reported
• M4 closed J13–J14 westbound · 22:40, still reported
• M4 closed J15–J16 westbound · 22:40, still reported
• M4 crash J12 eastbound · 22:31, cleared after 37 min
• M4 crash J13–J12 eastbound · 21:22, still reported
• M4 closed J20–J21 westbound · 20:56, still reported
• M4 crash J10–J8 eastbound · 08:26, cleared after 1 h 10 min
• M4 crash J8 eastbound · 08:26, cleared after 1 h 10 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.