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 201654A028216

Slight
51.5259, -1.7148
3 vehicles 1 casualty
FORD FIESTA VAUXHALL CORSA BMW X1
View Details

Accident 2016549744116

Slight
51.5286, -1.7378
2 vehicles 1 casualty
Van / Goods 3.5 tonnes mgw or under Car
View Details

Accident 2016430307603

Slight
51.4596, -0.7909
1 vehicle 2 casualties
MITSUBISHI COLT
View Details

Accident 2016549678116

Slight
51.5538, -1.9225
4 vehicles 1 casualty
FORD MONDEO PEUGEOT BIPPER AUDI A3 (1y) PEUGEOT 208 (1y)
View Details

Accident 2016610056316

Fatal
51.5522, -3.0641
2 vehicles 1 casualty
VAUXHALL INSIGNIA YAMAHA XJ6
View Details

Accident 2016549664916

Slight
51.5100, -2.1618
2 vehicles 1 casualty
FORD FOCUS RENAULT TRUCKS Model Missing
View Details

Accident 2016430306442

Slight
51.4757, -0.7669
3 vehicles 1 casualty
AUDI A1 (2y) PEUGEOT 208 Car
View Details

Accident 2016549653116

Slight
51.5142, -2.0917
1 vehicle 1 casualty
TOYOTA YARIS (4y)
View Details

Accident 2016010023335

Slight
51.4947, -0.4435
1 vehicle 1 casualty
MERCEDES Model Missing
View Details

Accident 2016549625416

Slight
51.5131, -1.6299
2 vehicles 2 casualties
NISSAN JUKE FIAT PUNTO
View Details

Accident 2016430314947

Slight
51.4564, -0.7980
4 vehicles 2 casualties
SCANIA Model Missing FORD TRANSIT (2y) PEUGEOT 407 VOLVO XC90 (4y)
View Details

Accident 2016521608614

Slight
51.5349, -2.5368
2 vehicles 2 casualties
BMW 3 SERIES YAMAHA Model Missing
View Details

Accident 2016010023245

Slight
51.4852, -0.4527
2 vehicles 1 casualty
MINI COOPER (2y) Car
View Details

Accident 2016621601735

Slight
51.6622, -3.8791
2 vehicles 2 casualties
FORD ECOSPORT VOLKSWAGEN TIGUAN (1y)
View Details

Accident 2016430304353

Slight
51.4189, -0.9940
2 vehicles 1 casualty
RENAULT MEGANE AUDI A6
View Details

Accident 2016549489116

Slight
51.5595, -1.9070
2 vehicles 3 casualties
Goods 7.5 tonnes mgw and over CITROEN DS3 (4y)
View Details

Accident 2016430304078

Slight
51.4629, -1.5062
1 vehicle 1 casualty
RENAULT CAPTUR (1y)
View Details

Accident 2016521608133

Slight
51.5688, -2.6587
2 vehicles 1 casualty
FIAT PUNTO KAWASAKI Model Missing
View Details

Accident 2016430304569

Fatal
51.5046, -0.6235
1 vehicle 1 casualty
SUZUKI DL 650
View Details

Accident 2016621601739

Serious
51.5162, -3.6852
2 vehicles 1 casualty
VOLKSWAGEN GOLF CITROEN C4
View Details