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HomeTrafficAccident Archive

M40 — UK Road Accident Archive

Motorway and A-road collisions from National Highways. Instant evidence reports from 99p — or £199 Expedited Service for serious cases£199 PREMIUM PLUS

1
Today
289
This Week
4,465
Severe Total
4,465
Total Collisions
289 collisions logged in the last 7 days — could one have affected you?
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95 incidents found on M40
M40
Severe Accident
M40 northbound between J11 and J12 | Northbound | Accident
Location : The M40 northbound between junctions J11 and J12 . Reason : Road traffic collision. Status : Cleared.
📅 27 Mar 2026, 09:58 📍 Banbury, Brackley
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M40 2 related
Severe Accident
M40 northbound between J3 and J4 | Northbound | Accident
Location : The M40 northbound between junctions J3 and J4 . Reason : Road traffic collision. Status : Cleared.
📅 27 Mar 2026, 07:59 📍 High Wycombe, Marlow
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Related segments — same incident

Severe M40 northbound between J3 and J4 | Northbound | Congestion Cleared 09:15 View →
M40
Severe Accident
M40 J8 northbound exit | Northbound | Accident
Location : The M40 northbound exit slip at junction J8 . Reason : Road traffic collision. Status : Currently Active. Time To Clear : The event is expected to clear between 06:30 and 06:45 on 23 Mar
📅 23 Mar 2026, 02:27 📍 Thame, Oxford
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M40 2 related
Severe Accident
M40 northbound between J9 and J10 | Northbound | Congestion
Location : The M40 northbound between junctions J9 and J10 . Reason : Congestion. Status : Currently Active. Return To Normal : Normal traffic conditions are expected between 01:30 and 01:45 on 22
📅 22 Mar 2026, 00:27 📍 Kidlington, Oxford
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Related segments — same incident

Severe M40 northbound between J9 and J10 | Northbound | Accident Cleared 08:00 View →
M40
Severe Accident
M40 northbound between J15 and J16 | Northbound | Accident
Location : The M40 northbound between junctions J15 and J16 . Lane Closures : The hard shoulder and lane 1 are closed. Reason : Road traffic collision. Status : Currently Active. Time To Clear :
📅 21 Mar 2026, 05:54 📍 Leamington Spa, Kenilworth
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M40 3 related
Severe Overturned Vehicle
M40 J3 southbound access | Southbound | Overturned Vehicle
Location : The M40 southbound entry slip at junction J3 . Reason : Accident involving an overturned vehicle. Status : Currently Active. Time To Clear : The event is expected to clear between 12:00
📅 20 Mar 2026, 10:29 📍 High Wycombe, Marlow
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Related segments — same incident

Severe Overturned Vehicle M40 J4 southbound access | Southbound | Overturned Vehicle Cleared 10:35 View → Severe Overturned Vehicle M40 southbound between J3 and J2 | Southbound | Overturned Vehicle Cleared 10:30 View →
M40
Severe Accident ↺ 1h 1m
M40 southbound between J1A and J1 | Southbound | Accident
Location : The M40 southbound between junctions J1A and J1 . Lane Closures : Lanes 2 and 3 are closed. Reason : Road traffic collision. Status : Currently Active. Time To Clear : The event is exp
📅 18 Mar 2026, 18:03 📍 High Wycombe, Beaconsfield
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M40
Severe Accident ↺ 1h 6m
M40 northbound between J15 and J16 | Northbound | Accident
Location : The M40 northbound between junctions J15 and J16 . Lane Closures : The hard shoulder and lane 1 are closed. Reason : Road traffic collision. Status : Currently Active. Time To Clear :
📅 15 Mar 2026, 14:58 📍 Leamington Spa, Kenilworth
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M40
Severe Accident ↺ 2h 4m
M40 northbound between J3 and J4 | Northbound | Accident
Location : The M40 northbound between junctions J3 and J4 . Lane Closures : Lane three is closed. Reason : Road traffic collision. Status : Currently Active. Time To Clear : The event is expected
📅 15 Mar 2026, 13:00 📍 High Wycombe, Marlow
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M40
Severe Vehicle Fire ↺ 1h 0m
M40 southbound between J13 and J12 | Southbound | Vehicle Fire
Location : The M40 southbound between junctions J14 and J12 . Lane Closures : The hard shoulder, lanes 1 and 2 are closed. Reason : Vehicle fire. Status : Currently Active. Time To Clear : The ev
📅 11 Mar 2026, 14:04 📍 Banbury, Southam
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M40 2 related
Severe Accident ↺ 3h 0m
M40 southbound between J9 and J8A | Southbound | Accident
Location : The M40 southbound between junctions J9 and J8A . Reason : Road traffic collision. Status : Currently Active. Time To Clear : The event is expected to clear between 12:45 and 13:00 on 9
📅 9 Mar 2026, 07:04 📍 Oxford, Abingdon
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Related segments — same incident

Severe Accident M40 J9 southbound access | Southbound | Accident Cleared 10:05 View →
M40
Severe Accident ↺ 1h 5m
M40 northbound between J2 and J3 | Northbound | Accident
Location : The M40 northbound between junctions J2 and J4 . Lane Closures : The hard shoulder, lanes 1 and 2 are closed. Reason : Road traffic collision. Status : Currently Active. Time To Clear
📅 8 Mar 2026, 00:59 📍 High Wycombe, Marlow
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M40
Severe Vehicle Fire ↺ 1h 9m
M40 northbound between J1A and J2 | Northbound | Vehicle Fire
Location : The M40 northbound between junctions J1A and J2 . Lane Closures : The hard shoulder and lane 1 are closed. Reason : Vehicle fire. Status : Currently Active. Time To Clear : The event i
📅 6 Mar 2026, 16:55 📍 High Wycombe, Marlow
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M40
Severe Accident ↺ 1h 12m
M40 northbound between J3 and J4 | Northbound | Accident
Location : The M40 northbound between junctions J3 and J4 . Lane Closures : The hard shoulder and lane 1 are closed. Reason : Road traffic collision. Status : Currently Active. Time To Clear : Th
📅 6 Mar 2026, 10:22 📍 High Wycombe, Marlow
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M40
Severe Accident ↺ 55m
M40 J1 southbound exit | Southbound | Accident
Location : The M40 southbound exit slip at junction J1 . Lane Closures : Lane one is closed. Reason : Road traffic collision. Status : Currently Active. Time To Clear : The event is expected to cl
📅 28 Feb 2026, 07:09 📍 High Wycombe, Beaconsfield
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M40 3 related
Severe Accident ↺ 3h 26m
fast slip from A404 northbound to M40 northbound | Northbound | Accident
Location : The M40 northbound. Reason : Road traffic collision. Status : Currently Active. Time To Clear : The event is expected to clear between 08:00 and 08:15 on 27 February 2026. Return To Nor
📅 27 Feb 2026, 00:28 📍 High Wycombe, Marlow
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Related segments — same incident

Severe Accident M40 J4 northbound access | Northbound | Accident Cleared 03:55 View → Severe Accident M40 northbound between J4 and J5 | Northbound | Accident Cleared 04:25 View →
M40
Severe Accident
M40 southbound between J13 and J12 | Southbound | Accident
Location : The M40 southbound between junctions J14 and J12 . Reason : Road traffic collision. Status : Cleared.
📅 25 Feb 2026, 07:14 📍 Banbury, Southam
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M40
Severe Accident ↺ 1h 27m
M40 southbound within J9 | Southbound | Accident
Location : The M40 southbound at junction J9 . Lane Closures : Lane two is closed. Reason : Road traffic collision. Status : Currently Active. Time To Clear : The event is expected to clear betwee
📅 23 Feb 2026, 20:03 📍 Oxford, Kidlington
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M40 2 related
Severe Accident ↺ 7h 0m
M40 J4 southbound access | Southbound | Accident
Location : The M40 southbound entry slip at junction J4 . Reason : Road traffic collision. Status : Currently Active. Time To Clear : The event is expected to clear between 07:45 and 08:00 on 22 Fe
📅 21 Feb 2026, 20:59 📍 High Wycombe, Marlow
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Related segments — same incident

Severe Accident M40 southbound between J4 and J3 | Southbound | Accident Cleared 04:00 View →
M40
Severe Overturned Vehicle
M40 J2 southbound exit | Southbound | Overturned Vehicle
Location : The M40 southbound exit slip at junction J2 . Reason : Accident involving an overturned vehicle. Status : Cleared.
📅 20 Feb 2026, 12:54 📍 High Wycombe, Marlow
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M40
Severe Vehicle Fire ↺ 56m
M40 northbound between J8A and J9 | Northbound | Vehicle Fire
Location : The M40 northbound between junctions J8A and J9 . Lane Closures : The hard shoulder and lane 1 are closed. Reason : Vehicle fire. Status : Currently Active. Time To Clear : The event i
📅 20 Feb 2026, 07:38 📍 Oxford, Abingdon
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M40
Severe Accident ↺ 36m
M40 southbound within J15 | Southbound | Accident
Location : The M40 southbound between junctions J16 and J15 . Lane Closures : The hard shoulder, lanes 1 and 2 are closed. Reason : Road traffic collision. Status : Currently Active. Time To Clea
📅 17 Feb 2026, 07:23 📍 Leamington Spa, Kenilworth
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UK Road Accident Data — National Highways

UK Traffic Updates archives every collision, overturned vehicle incident, and vehicle fire recorded by National Highways across England's motorway and strategic road network. Records include timestamps, road closures, duration, severity, and location data.

If you were involved in an accident on a UK motorway or A-road, this archive can help you find the incident record. Our instant evidence reports come in five tiers: 99p Micro Certificate (instant timestamp proof), £5.99 Delay Certificate (HR or insurance proof of delay), £14.99 Standard Report (full incident details with weather and road context), £49.99 Premium Court-Ready Report (complete evidence pack with full timeline, traffic impact analysis, emergency services detection, blackspot history, and meteorological conditions), and the £59.99 Crash Day Pack (Premium Report + Delay Certificate + Risk Report bundled — saves £3.98 vs buying separately). Reports generate within seconds, not months.

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Our partner solicitors specialise in motorway and A-road accident claims across England, working on a No Win, No Fee basis. The Premium Report is designed specifically for legal proceedings and insurance disputes — with section references, legal citations under the Road Traffic Act 1988, and admissible evidence formatting.

Data from National Highways under the Open Government Licence v3.0. © 2026 UK Traffic Updates.

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