Find traffic updates, service providers, tools & more
M3 J12 at 09:41 on Monday 12 October: road closed westbound · 1 more incident at this junction · closure planned from 21:00.
Straight from National Highways, re-checked every 3 minutes while this page is open.
Location from the National Highways junction reference. Nearest towns: Eastleigh, Southampton, Hedge End, Romsey.
Wider area: counting every road within 3 miles — local streets, A-roads, everything — 1,041 collisions are on record, 8 of them fatal. That figure follows how built-up the area is, so it is shown for context and is not what the ranking uses.
Department for Transport STATS19 police collision records on the M3 itself, within 2 miles of J12. This is the free summary — the full breakdown by severity, weather, road surface, time of day and individual record is in the blackspot report.
📊 Full collision analysis for M3 J12 → 3 of 15 junctions on the M3 · see where it ranks nationallyM3 J12 is at Eastleigh & Chandlers Ford. National Highways signs it as Eastleigh. The nearest town is Eastleigh.
No collision is listed at M3 J12 as of 09:41, but National Highways report: The M3 westbound at junction J12. Other. All lanes are closed. Lanes one, two, three and four are closed. The event is expected to clear between 10:45 and 11:00 on 12 October 2026. Currently Active.
Yes — as of 09:41: The M3 westbound at junction J12. Other. All lanes are closed. Lanes one, two, three and four are closed. The event is expected to clear between 10:45 and 11:00 on 12 October 2026. Currently Active.
Police STATS19 records show 55 collisions on the M3 within 2 miles of J12, including 2 fatal and 8 serious. Counting every road in the area, 1,041 collisions are recorded within 3 miles. That ranks it 106 of 554 UK junctions we hold collision records for.
Live incidents, roadworks and delays for the whole M3, updated every 5 minutes from National Highways.
🚗 M3 live traffic →