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 200943W033069

Slight
51.4602, -1.1104
1 vehicle 1 casualty
OPEL Model Missing
View Details

Accident 200954EP20009

Slight
51.5142, -2.1207
2 vehicles 1 casualty
VAUXHALL CORSA HONDA CIVIC
View Details

Accident 2009610032509

Slight
51.6013, -2.9756
1 vehicle 1 casualty
Car
View Details

Accident 200943R041069

Slight
51.4930, -0.5174
5 vehicles 3 casualties
NISSAN ALMERA VAUXHALL ASTRA (1y) VAUXHALL ASTRA Goods 7.5 tonnes mgw and over DAF TRUCKS FTG 95XF (4y)
View Details

Accident 2009610030809

Slight
51.6040, -2.9930
2 vehicles 1 casualty
MAN Model Missing (2y) MERCEDES C CLASS
View Details

Accident 200943N173069

Slight
51.5108, -0.6678
5 vehicles 1 casualty
Car Car SEAT ALHAMBRA Car Car
View Details

Accident 2009620190240

Slight
51.5067, -3.3106
2 vehicles 1 casualty
MITSUBISHI Model Missing YAMAHA Model Missing
View Details

Accident 2009620190539

Slight
51.6776, -3.9106
5 vehicles 6 casualties
VAUXHALL ZAFIRA CITROEN C5 VAUXHALL ASTRA LAND ROVER DISCOVERY (4y) AUDI A4 (1y)
View Details

Accident 200954MA02109

Slight
51.5443, -1.8533
2 vehicles 1 casualty
HYUNDAI COUPE (2y) FORD FIESTA
View Details

Accident 200943W224059

Serious
51.4932, -0.5190
4 vehicles 2 casualties
Goods 7.5 tonnes mgw and over FORD FOCUS (1y) Car VOLKSWAGEN PASSAT (2y)
View Details

Accident 200943R209059

Slight
51.5020, -0.6098
5 vehicles 2 casualties
VOLKSWAGEN TRANSPORTER RENAULT MEGANE (4y) ALFA ROMEO GT (1y) FORD TRANSIT (4y) NISSAN QASHQAI
View Details

Accident 200943R225059

Slight
51.4877, -0.5575
3 vehicles 1 casualty
HONDA CBR1000RR Car Car
View Details

Accident 200943W204059

Serious
51.4341, -0.8500
1 vehicle 1 casualty
FORD TRANSIT (3y)
View Details

Accident 2009520904788

Slight
51.5155, -2.5195
1 vehicle 1 casualty
VOLKSWAGEN GOLF
View Details

Accident 200901TX20338

Slight
51.4891, -0.3150
3 vehicles 1 casualty
Car VOLKSWAGEN GOLF (1y) VAUXHALL VECTRA
View Details

Accident 200943R254059

Slight
51.4932, -0.5203
4 vehicles 1 casualty
Van / Goods 3.5 tonnes mgw or under Car HONDA JAZZ (2y) Car
View Details

Accident 200943R253059

Slight
51.4932, -0.5203
3 vehicles 1 casualty
VAUXHALL CORSA BMW 3 SERIES LDV 400 SERIES
View Details

Accident 2009620190249

Slight
51.5915, -3.7711
2 vehicles 1 casualty
PEUGEOT 206 CITROEN C4 (2y)
View Details

Accident 200943W161059

Slight
51.4525, -1.3138
2 vehicles 1 casualty
VOLVO C 30 (1y) Bus or coach (17 or more pass seats)
View Details

Accident 200943W163059

Fatal
51.4529, -1.0803
1 vehicle 4 casualties
VAUXHALL INSIGNIA
View Details