M4 crash J3 westbound

Crash on the M4 westbound at J3 on Sunday 27 September 2026, from 00:02. Cleared at 07:37 after 295 h 35 min. Timeline of reports from the motorway signs and National Highways.

Status

Cleared 07:37 on 9 Oct 2026, after 295 h 35 min

Location

M4 westbound · J3

Reported as

Collision

Lanes

1 of 4 lanes closed

Sources

Motorway signs ×2 · National Highways

Timeline

1. Sun 00:02 Motorway signs: “COLLISION”
2. Sun 00:34 Motorway signs: “STRANDED VEHICLE”
3. Sun 00:58 Motorway signs no longer show “COLLISION”
4. Sun 01:28 Motorway signs no longer show “STRANDED VEHICLE”
5. Sun 01:28 All clear: no source reports it any more
6. Fri 06:34 National Highways: 1 of 4 lanes closed
7. Fri 07:06 Motorway signs: “STRANDED VEHICLE” (reported again)
8. Fri 07:19 National Highways: lane closure lifted
9. Fri 07:37 Motorway signs no longer show “STRANDED VEHICLE”
10. Fri 07:37 All clear: no source reports it any more

Source reports

• Overhead signs read “COLLISION” (1 sign; furthest along: M4 westbound within J3).
• Overhead signs read “STRANDED VEHICLE” (1 sign; furthest along: M4 westbound within J3).
• M4 westbound within J3

Other recent incidents on the M4

• M4 crash J18yesterday 19:23 · cleared after 46 min
• M4 crash J5–J4B eastboundyesterday 18:15 · cleared after 57 min
• M4 closed J15–J16yesterday 17:50 · cleared after 15 min
• M4 crash J19–J20 westboundyesterday 16:33 · cleared after 1 h 19 min
• M4 reported crash J13–J12 eastboundyesterday 08:00 · cleared after 38 min
• M4 crash Westboundyesterday 07:57 · cleared after 2 h 30 min
• M4 crash Eastboundyesterday 07:57 · cleared after 45 min
• M4 crash J35 eastboundyesterday 07:27 · cleared after 2 h 55 min
• M4 reported crash J15–J14 eastboundMon 22:41 · cleared after 54 min
• M4 crash J8–J10 westboundMon 18:25 · cleared after 46 min

Live traffic and past incidents at M4 J3.

The sources don't report causes or injuries, so neither does this page. Times are UK time. For alerts, follow @motorways.me on Bluesky.