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A3 northbound traffic at 08:15 on Tuesday 13 October: 1 live incident.
This page tracks live A3 traffic northbound only — every incident, closure and roadworks National Highways publish for the northbound carriageway, updated every 5 minutes, 24 hours a day. Anything they list without naming a direction is shown here too, so nothing is missed.
Heading the other way? See A3 southbound traffic. The full A3 traffic page covers both directions, with the live map, junction-by-junction status, the latest A3 videos and tonight's A3 roadworks.
Q: Is the A3 northbound closed today?
No — as of 08:15 National Highways list no full closure on the A3 northbound. There is 1 live incident — see the board above.
Q: Are there any accidents on the A3 northbound today?
One live incident on the A3 northbound right now — every one is on the live board above, direct from National Highways.
Q: Why is the A3 slow northbound today?
Right now: The A3 northbound between junctions with the A244 and A309. Congestion. Normal traffic conditions are expected between 08:30 and 08:45 on 13 October 2026. There are currently delays between 10 and 20 minutes against expected traffic. Currently Active — around 12 minutes of delay. Live detail above.
Q: Are there roadworks on the A3 northbound tonight?
Yes — 1 overnight closure is scheduled on the A3 northbound. Times and junctions are in the closures list above and on the A3 roadworks page.
Q: Where can I check live A3 traffic northbound?
Right here — this page is live A3 traffic for the northbound carriageway, updated every 5 minutes from National Highways, 24 hours a day. The full A3 page covers both directions with the live map and junction-by-junction status.
Q: Which part of the A3 does this page cover?
The whole northbound carriageway, end to end — the A3 runs between London (Guildford Street) and Portsmouth. The southbound side has its own page.
Daily A3 incidents, posted across all four channels.
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