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M40 J4 at 08:49 on Monday 12 October: closure planned from 22:15.
Straight from National Highways, re-checked every 3 minutes while this page is open.
Location from the National Highways junction reference. Nearest towns: High Wycombe, Marlow, Beaconsfield, Maidenhead.
Wider area: counting every road within 3 miles — local streets, A-roads, everything — 876 collisions are on record, 10 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 M40 itself, within 2 miles of J4. 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 M40 J4 → 10 of 15 junctions on the M40 · see where it ranks nationallyM40 J4 is at High Wycombe & Marlow. National Highways signs it as Handy Cross. The nearest town is High Wycombe.
No — as of 08:49 National Highways list nothing at M40 J4. This page re-checks their live feed every few minutes, 24 hours a day.
Not right now. Planned: M40 Northbound, Jct 2 to Jct 4 carriageway closure, from 22:15 until 06:00 Tue 13 Oct.
Police STATS19 records show 26 collisions on the M40 within 2 miles of J4, including 0 fatal and 6 serious. Counting every road in the area, 876 collisions are recorded within 3 miles. That ranks it 411 of 554 UK junctions we hold collision records for.
Live incidents, roadworks and delays for the whole M40, updated every 5 minutes from National Highways.
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