Crash View

M4 road traffic accidents

29,200 collisions recorded
1979 to 2025

The M4 appears in 29,200 collisions in the STATS19 data between 1979 and 2025, involving 46,338 casualties. Of these collisions, 724 were fatal and 4,059 were serious. Recorded collisions in 2025 were up 17% on 2024.

Is the M4 closed right now? See today's accidents, overnight closures and roadworks.

Live M4 closures today
All Severities Fatal Serious Slight
Fatal
724
Serious
4,059
Casualties
46,338
2025 252
2024 216
2023 220
2022 226
2021 238
2020 178
2019 362
2018 355
2017 400
2016 479
2015 525
2014 574
2013 534
2012 493
2011 530
2010 583
2009 538
2008 662
2007 780
2006 844
2005 772
2004 867
2003 876
2002 827
2001 855
2000 864
1999 852
1998 860
1997 835
1996 782
1995 812
1994 761
1993 759
1992 739
1991 730
1990 888
1989 835
1988 763
1987 691
1986 749
1985 639
1984 640
1983 606
1982 553
1981 564
1980 552
1979 540

Hillingdon

1,815 recorded here

Wiltshire

1,801 recorded here

West Berkshire

1,791 recorded here

Slough

1,787 recorded here

South Gloucestershire

1,501 recorded here

Newport

1,382 recorded here

Browse all regions

Hounslow

571 recorded along the M4

Hillingdon

428 recorded along the M4

Newport (Newport)

353 recorded along the M4

Slough

288 recorded along the M4

Port Talbot

205 recorded along the M4

Cardiff

93 recorded along the M4

Browse all towns
Browse All Roads Search All Accidents

Accidents on the M4

Fatal
Serious
Slight
Click markers for details

Move Insights

Thinking of moving to this area?

Check flood risk, planning history, EPC ratings and more with a Move Insights property report.

Flood risk assessment
Planning history
EPC ratings & more
Get a property report

Recent Accidents

Showing 20 of 29,200 accidents

Accident 1996610002296

Slight
3 vehicles 1 casualty
Vehicle Vehicle Vehicle
View Details

Accident 19965296E0098

Slight
4 vehicles 2 casualties
FORD CORTINA RENAULT 19 (4y) FORD FIESTA SCANIA Model Missing
View Details

Accident 199601TC00025

Slight
2 vehicles 1 casualty
ROVER 800 SERIES (2y) Vehicle
View Details

Accident 199662M000996

Slight
2 vehicles 1 casualty
LEYLAND DAF FT 85 Vehicle
View Details

Accident 199643R028016

Slight
2 vehicles 1 casualty
Vehicle MERCEDES 300 (3y)
View Details

Accident 199601TC00034

Slight
2 vehicles 1 casualty
Vehicle Vehicle
View Details

Accident 199643U022016

Slight
2 vehicles 1 casualty
Vehicle VAUXHALL ASTRA
View Details

Accident 199643R024016

Slight
3 vehicles 1 casualty
Vehicle Vehicle MERCEDES C CLASS (1y)
View Details

Accident 199601TC00007

Slight
3 vehicles 3 casualties
VOLKSWAGEN POLO AUSTIN MONTEGO FIAT PUNTO (2y)
View Details

Accident 199601TC00010

Slight
1 vehicle 1 casualty
BMW 3 SERIES (1y)
View Details

Accident 199643U066016

Slight
2 vehicles 1 casualty
VAUXHALL CAVALIER Vehicle
View Details

Accident 199643U011016

Slight
3 vehicles 1 casualty
FORD MONDEO (2y) ROVER METRO Vehicle
View Details

Accident 199601TC00006

Slight
2 vehicles 1 casualty
FORD ESCORT VAUXHALL BELMONT
View Details

Accident 199643R010016

Slight
1 vehicle 1 casualty
RENAULT CLIO (3y)
View Details

Accident 199643U008016

Slight
1 vehicle 1 casualty
FORD SIERRA
View Details

Accident 199643R004016

Slight
4 vehicles 2 casualties
FORD ESCORT FORD GRANADA (4y) FORD FIESTA (4y) FORD ESCORT (3y)
View Details

Accident 199654MB00016

Slight
1 vehicle 2 casualties
VAUXHALL ASTRA
View Details

Accident 199643U007016

Slight
3 vehicles 1 casualty
Vehicle FORD ESCORT (2y) SEAT IBIZA
View Details

Accident 199643U003016

Serious
5 vehicles 3 casualties
TOYOTA MR2 NISSAN 300 VAUXHALL ASTRA Vehicle ROVER 200 SERIES (1y)
View Details

Accident 19955295E5036

Slight
2 vehicles 5 casualties
Vehicle FORD ESCORT
View Details