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At a glance

🕐 Last verified 5 Mar, 07:50

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StatusCleared
Severity (NH)Severe
RoadM1
DirectionSouthbound
RegionEast Midlands
CountyNorthamptonshire
Category (NH)Accident
ReportedWed 4 Mar, 19:45
ClearedThu 5 Mar, 07:50
Lasted12h 5m
Road typeMotorway
Speed limit70 mph (variable)
Weather☀️ Clear sky
ReferenceREF-21236169

Times are UK time.

What National Highways say

M1 southbound within J15 | Southbound | Accident

Location : The M1 southbound between junctions J15A and J15 . 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 13:45 and 14:00 on 5 March 2026. Return To Normal : Normal traffic conditions are expected between 13:45 and 14:00 on 5 March 2026. Lanes Closed : There is one of four lanes closed. Previous Reason : Following an earlier accident.

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

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Live Incident Timeline

1 update captured · 2 affected segments · Cleared

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Also on the M1 today

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Recent M1 incidents

274 incidents and roadworks logged on the M1 in the last 30 days, 126 of them serious or severe. Times are UK time.

M1 | Leicestershire | Carriageway Closure | DelaysMon 7 Sep, 04:14 M1 | Leicestershire | Road Closure | DelaysMon 7 Sep, 04:14 M1 | Leicestershire | Road Closure | Expect DelaysSat 5 Sep, 18:48 M1 | South Yorkshire | Carriageway Closure | Expect DelaysSat 5 Sep, 10:41 M1 | Leicestershire | Carriageway Closure | Long Delays 45 minutesMon 31 Aug, 13:55 M1 | Nottinghamshire | Carriageway Closure | Expect DelaysSun 23 Aug, 21:55
Every M1 incident

Common questions

Is the M1 closed?

Not because of this crash. It cleared at 07:50 UK time on Thu 5 Mar. See the M1 right now.

What happened on the M1 on 4 Mar 2026?

Crash on the M1 southbound at J15 in Northamptonshire, reported at 19:45 UK time on Wed 4 Mar. Cleared at 07:50 on Thu 5 Mar.

How long did it last?

12h 5m, from 19:45 UK time on Wed 4 Mar.

Where can I see everything else on the M1?

The M1 live page shows what is happening now, and the M1 archive has every incident on record.

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