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 201443W022084

Slight
51.4361, -0.8435
3 vehicles 2 casualties
PEUGEOT 206 NISSAN MICRA FORD FOCUS
View Details

Accident 2014621401480

Slight
51.6745, -3.9694
1 vehicle 1 casualty
CITROEN C2
View Details

Accident 201443R007084

Slight
51.4900, -0.5496
2 vehicles 2 casualties
VAUXHALL CORSA (1y) AUDI A4
View Details

Accident 2014610042514

Serious
51.5487, -3.0948
1 vehicle 1 casualty
PEUGEOT 307
View Details

Accident 2014610040614

Slight
51.5863, -2.8346
1 vehicle 1 casualty
TOYOTA Model Missing
View Details

Accident 2014521405402

Serious
51.5179, -2.2742
1 vehicle 1 casualty
VAUXHALL ZAFIRA
View Details

Accident 2014521405723

Slight
51.5305, -2.5324
3 vehicles 4 casualties
Goods 7.5 tonnes mgw and over FIAT PUNTO Car
View Details

Accident 201443W255074

Slight
51.4134, -0.9760
2 vehicles 2 casualties
FORD FOCUS MAZDA 626
View Details

Accident 201443W274074

Slight
51.4745, -1.5398
2 vehicles 2 casualties
MERCEDES C CLASS (3y) IVECO Model Missing (2y)
View Details

Accident 2014621401377

Slight
51.5059, -3.3189
1 vehicle 2 casualties
CITROEN SAXO
View Details

Accident 201443R215074

Slight
51.4931, -0.5187
3 vehicles 2 casualties
LEXUS IS220 FORD S-MAX (3y) Car
View Details

Accident 201401TX20557

Slight
51.4927, -0.4111
2 vehicles 1 casualty
MERCEDES C CLASS (2y) PEUGEOT 307
View Details

Accident 201443W215074

Slight
51.4204, -0.9236
1 vehicle 1 casualty
PEUGEOT 206
View Details

Accident 201443W219074

Serious
51.4795, -1.5515
2 vehicles 1 casualty
KAWASAKI ZX1400 (1y) Car
View Details

Accident 201443N272074

Slight
51.5077, -0.6842
2 vehicles 2 casualties
VAUXHALL CORSA FORD FIESTA
View Details

Accident 2014621401409

Slight
51.5159, -3.6926
2 vehicles 1 casualty
VAUXHALL CORSA SUZUKI ALTO
View Details

Accident 2014546835714

Slight
51.5148, -2.0792
2 vehicles 2 casualties
KIA VENGA CITROEN C4 (1y)
View Details

Accident 2014546667914

Slight
51.5541, -1.9215
1 vehicle 2 casualties
FORD ESCORT
View Details

Accident 201443R172074

Slight
51.4939, -0.5062
1 vehicle 1 casualty
SKODA FABIA
View Details

Accident 201443W166074

Slight
51.4566, -1.3592
4 vehicles 7 casualties
Car PEUGEOT 208 VAUXHALL INSIGNIA (3y) FORD FOCUS
View Details