A12 crash southbound

Crash on the A12 southbound at Blackwall Tunnel Northern Approach on Sunday 25 October 2026, from 05:15. Cleared at 20:40 after 15 h 24 min. Timeline of reports from TfL.

Status

Cleared 20:40 on 25 Oct 2026, after 15 h 24 min

Location

A12 southbound · Blackwall Tunnel Northern Approach

Reported as

Collision

Lanes

1 of 2 lanes closed

At its worst

Road closed

Sources

TfL ×3

Timeline

1. Sun 05:15 TfL: collision, road closed
2. Sun 05:45 TfL: “Southbound delays back towards Gillender Street.”
3. Sun 06:49 TfL: road reopened, “reduced to one lane from Zetland Street following an earlier collision. Traffic signals have been damaged at this junction and all out. Seek alternative route. Southbound delays back towards Gillender Street.”
4. Sun 06:55 TfL: “Traffic is slow moving on approach.”
5. Sun 07:23 TfL: “currently all out. The crossover from Zetland Street and Lochnagar Street is closed. Traffic is flowing well.”
6. Sun 08:38 TfL: collision
7. Sun 09:09 TfL: “East India Dock Road interchange is closed due to a collision. Use an alternative route. Traffic is slow moving on diversion.”
8. Sun 09:51 TfL: “has reopened following an earlier collision. Use caution on approach as the signals are not operational. Traffic is flowing well.”
9. Sun 09:55 TfL: “Use caution on approach. Traffic is flowing well.”
10. Sun 11:11 TfL: “Traffic signals have been damaged at this junction following an earlier collision. The crossover from Zetland Street and Lochnagar Street is closed. Traffic is flowing well.”
11. Sun 17:15 TfL: still reported after more than 12 hours, so treated as out of date
12. Sun 18:43 TfL: broken-down vehicle, 1 of 2 lanes closed
13. Sun 20:32 TfL: “traffic signals are faulty. Use caution on approach. Traffic is flowing well.”
14. Sun 20:40 TfL: still reported after more than 12 hours, so treated as out of date
15. Sun 20:40 All clear: no source reports it any more

Source reports

• [A12] Blackwall Tunnel Northern Approach (Southbound) at the junction of Zetland Street - Traffic signals have been damaged at this junction following an earlier collision. The crossover from Zetland Street and Lochnagar Street is closed. Traffic is flowing well.
• [A12] Brunswick Road (Southbound) at the junction of [A13] East India Dock Road - The traffic signals are faulty. Use caution on approach. Traffic is flowing well.
• [A12] Blackwall Tunnel Northern Approach (Southbound) at the junction of [A11] Bow Road - Lane one (of two) is blocked by a broken down vehicle. Traffic is slow moving past the incident. Expect delays.

Other recent incidents on the A12

• A12 crash southboundSun 12:16 · cleared after 24 min
• A12 crash A12 westboundSat 19:47 · cleared after 8 h 25 min
• A12 stopped trafficFri 15:19 · cleared after 2 h 41 min
• A12 crashFri 10:47 · cleared after 25 min
• A12 crash Eastern Avenue West eastboundThu 16:37 · cleared after 2 h 58 min
• A12 crash A12 southboundThu 03:00 · cleared after 7 h 6 min
• A12 crash Eastern Avenue eastbound24 Oct 2026 13:04 · cleared after 7 h 45 min
• A12 crash Eastern Avenue East westbound24 Oct 2026 12:01 · cleared after 9 h 29 min
• A12 crash Eastern Avenue eastbound23 Oct 2026 10:58 · cleared after 23 min
• A12 crash Eastern Avenue westbound23 Oct 2026 02:26 · cleared after 2 h 24 min

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