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At a glance

🕐 Last verified 21 Mar, 06:50

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StatusCleared
Severity (NH)Severe
RoadM40
DirectionNorthbound
Category (NH)Accident
ReportedSat 21 Mar, 05:54
Cleared06:00
Lasted5 min
Road typeMotorway
Speed limit70 mph (variable)
Weather☁️ Overcast
ReferenceREF-25419489
Views136

Times are UK time.

What National Highways say

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 : The event is expected to clear between 07:45 and 08:00 on 21 March 2026. Return To Normal : Normal traffic conditions are expected between 07:45 and 08:00 on 21 March 2026. Lanes Closed : There is one of three lanes closed.

The official National Highways record of this incident, kept here after the road reopens.

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Recent M40 incidents

6 incidents and roadworks logged on the M40 in the last 30 days, 4 of them serious or severe. Times are UK time.

M40 | Oxfordshire | Carriageway Closure | Severe Delays 2 hoursFri 7 Aug, 12:49 M40 | Buckinghamshire | Carriageway Closure | Expect DelaysFri 10 Jul, 02:14 M40 | Oxfordshire | Carriageway Closure | DelaysSat 4 Jul, 11:00 M40 J4 northbound exit | Northbound | CongestionMon 29 Jun, 17:06 M40 J4 northbound exit | Northbound | CongestionMon 29 Jun, 11:30 M40 southbound between J5 and J4 | Southbound | AccidentSun 28 Jun, 18:19
Every M40 incident

Common questions

Is the M40 closed?

Not because of this crash. It cleared at 06:00 UK time on Sat 21 Mar. See the M40 right now.

What happened on the M40 on 21 Mar 2026?

Crash on the M40 northbound J15 to J16, reported at 05:54 UK time on Sat 21 Mar. Cleared at 06:00.

How long did it last?

5 min, from 05:54 UK time on Sat 21 Mar.

Where can I see everything else on the M40?

The M40 live page shows what is happening now, and the M40 archive has every incident on record.

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