M3 traffic today

Right now on the M3: 1 obstruction or hazard.

Updated 23:37 UK time · live crashes, closures and delays

View on the live map Closures tonight

Right now

M3 eastbound · J3–J2

Obstruction or hazard

2 of 4 lanes closed · since 22:14 (1 h 23 min)

Motorway signs ×2 · National Highways
Timeline · 4 updates
1. 22:14 Motorway signs: “REPORT OF OBSTRUCTION”
2. 22:17 National Highways: 2 of 4 lanes closed
3. 22:40 Motorway signs: “INCIDENT”
4. 22:59 Motorway signs no longer show “REPORT OF OBSTRUCTION”

Roadworks now

Eastbound J5–J4Auntil Mon 06:002 of 4 lanes closedM3 northbound lane 1 and 2 closure (65/2 to 63/5)
Westbound J4Auntil Mon 06:00Entry slip road closed
Eastbound J2until Mon 05:301 of 3 lanes closedM3 Northbound Jct 2 exit slip road lane 1 closure
Eastbound J3–J2until Mon 05:301 of 4 lanes closedM3 Northbound Jct 3 to Jct 2 lane 1 closure

Closures tonight

Westbound J4A21:00–06:00Entry slip road closed

Earlier today

M3 eastbound · J4A: Obstruction or hazard09:52–10:26
M3 eastbound · J4–J3: Obstruction or hazard09:16–09:56
M3 westbound · J2–J3: Broken-down vehicle04:24–05:24
M3 westbound · J2–J3: Obstruction or hazard04:16–05:27

Planned closures: next 7 days

Wednesday 11 November

Eastbound J1321:00–06:00Exit slip road closed

Thursday 12 November

Eastbound J1321:00–06:00Exit slip road closed
Eastbound J1321:00–06:00Entry slip road closed

Planned closures from National Highways, checked every few hours. Plans can change at short notice, so follow the signs. See every closure tonight.

Recent incidents

M3 crash J2–J3 westboundWed 07:52 · cleared after 2 h 40 min
M3 crash J2–J3 westboundTue 07:46 · cleared after 38 min
M3 crash J3–J2 eastboundTue 06:45 · cleared after 2 h 40 min
M3 crash J3–J2 eastbound1 Nov 2026 15:48 · cleared after 3 h 28 min
M3 stopped traffic J2–J3 westbound31 Oct 2026 09:57 · cleared after 46 min
M3 crash J11–J12 westbound30 Oct 2026 14:22 · cleared after 3 h 49 min
M3 crash J11–J1230 Oct 2026 10:23 · cleared after 2 h 41 min
M3 crash J1–J2 westbound29 Oct 2026 12:24 · cleared after 2 h 32 min
M3 stopped traffic J11 westbound28 Oct 2026 15:42 · cleared after 3 h 1 min
M3 crash J3 westbound27 Oct 2026 08:47 · cleared after 11 h 49 min
M3 crash J3–J2 eastbound26 Oct 2026 19:23 · cleared after 24 h 57 min
M3 crash J1126 Oct 2026 10:03 · cleared after 2 h 22 min
M3 reported crash J3 eastbound23 Oct 2026 08:47 · cleared after 46 min
M3 crash J4–J3 eastbound22 Oct 2026 23:13 · cleared after 1 h 18 min
M3 crash J3–J2 eastbound22 Oct 2026 15:50 · cleared after 2 h 19 min
M3 crash J14–J13 eastbound22 Oct 2026 15:31 · cleared after 4 h 21 min
M3 crash J4–J3 eastbound22 Oct 2026 07:17 · cleared after 1 h 9 min
M3 crash J4A–J4 eastbound17 Oct 2026 14:51 · cleared after 39 min
M3 crash J4–J3 westbound16 Oct 2026 17:33 · cleared after 2 h 21 min
M3 crash J11 eastbound16 Oct 2026 09:08 · cleared after 3 h 28 min

The last 7 days

Incidents

Collisions

Typical time to clear

44 minmedian of 59

Busiest time

06:00–07:00

Junctions with the most incidents (30 days)

J2–J387 incidents, 8 collisions
J3–J469 incidents, 3 collisions
J4–J4A14 incidents, 1 collision
J313 incidents, 1 collision
J1–J213 incidents, 1 collision

M3 junctions

Live traffic, closures and past incidents at each junction.

Nearby roads

M27 A30 M25 A27 M271 A34 A35

Common questions

Is the M3 closed right now?

No incidents have closed it right now, but 1 lane closure is in place. Roadworks have lanes closed in 3 places (listed above).

Is the M3 closed tonight?

National Highways has 1 closure planned on the M3 tonight: westbound J4A entry slip road closed 21:00–06:00.

Have there been any crashes on the M3 today?

None reported so far today (since midnight UK time).

How can I get M3 alerts?

Follow @motorways.me on Bluesky for crashes and stopped traffic as they're reported, or send it a message saying “M3” for the last 4 hours on the road.

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Sources: National Highways, TomTom, TfL and Traffic Wales. Times are UK time. M3 RSS feed