A3(M) J3 traffic

No incidents reported at A3(M) J3 right now.

Updated 03:29 UK time · at J3 and the stretches either side

Right now

Nothing reported at A3(M) J3 at the moment.

No closures planned at J3 tonight.

Incidents

Collisions

Road closed

2times

Typical time to clear

1 h 2 minmedian of 15

Busiest time

07:00–08:00

A3(M) closed J3Fri 14:29 · cleared after 1 h
A3(M) crash J3Fri 13:34 · cleared after 20 min
A3(M) reported crash J3 northboundFri 11:34 · cleared after 57 min
A3(M) reported crash J3 northboundThu 23:18 · cleared after 40 min
A3(M) closed J4–J3 northbound23 Oct 2026 07:17 · cleared after 3 h 17 min
A3(M) crash J3 northbound21 Oct 2026 07:46 · cleared after 1 h 5 min
A3(M) reported crash J3–J4 southbound17 Oct 2026 12:26 · cleared after 1 h 2 min
A3(M) reported crash J3 southbound16 Oct 2026 07:37 · cleared after 3 h 44 min
A3(M) reported crash J3 northbound10 Oct 2026 01:56 · cleared after 46 min

No incidents have closed it right now.

No closures are planned at J3 tonight. 2 are planned over the next 7 days (listed above).

7 collisions reported at or either side of J3 in the last 90 days, the latest on 30 Oct 2026 at 13:34.

Includes incidents at J3 and on the stretches either side of it. Sources: National Highways, TomTom, TfL and Traffic Wales. Times are UK time.