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 200701XH30710

Slight
51.4958, -0.4603
2 vehicles 1 casualty
VOLKSWAGEN GOLF FORD KA (2y)
View Details

Accident 2007610096107

Slight
51.6025, -2.9060
1 vehicle 1 casualty
VAUXHALL ZAFIRA (3y)
View Details

Accident 200743R095127

Slight
51.5020, -0.5986
2 vehicles 2 casualties
RENAULT CLIO VOLKSWAGEN GOLF
View Details

Accident 200701XH30701

Slight
51.4956, -0.4491
3 vehicles 3 casualties
Car RENAULT CLIO (3y) Car
View Details

Accident 200701XH30707

Slight
51.4945, -0.4536
3 vehicles 2 casualties
RENAULT LAGUNA (1y) PEUGEOT 206 (3y) RENAULT CLIO
View Details

Accident 2007620174171

Slight
51.5470, -3.1817
2 vehicles 2 casualties
Car VAUXHALL VECTRA
View Details

Accident 200754MB09607

Slight
51.5335, -1.7713
1 vehicle 1 casualty
CITROEN XSARA
View Details

Accident 200754MA09407

Slight
51.5441, -1.8519
4 vehicles 3 casualties
RENAULT CLIO MAZDA 323 Car RENAULT CLIO (1y)
View Details

Accident 2007620174497

Slight
51.5849, -3.7655
4 vehicles 1 casualty
SKODA SUPERB (2y) FORD FIESTA (2y) AUDI TT (2y) CITROEN XSARA
View Details

Accident 2007610098007

Slight
51.6027, -2.9060
1 vehicle 2 casualties
ROVER 25 (4y)
View Details

Accident 200701XH30693

Serious
51.4943, -0.4537
2 vehicles 1 casualty
Motorcycle over 125cc and up to 500cc PEUGEOT 307
View Details

Accident 200743R094127

Slight
51.4889, -0.7485
4 vehicles 3 casualties
FORD FOCUS AUDI A4 Car MAZDA 323
View Details

Accident 200754MB09807

Slight
51.5060, -1.5977
4 vehicles 2 casualties
IVECO Model Missing (4y) CITROEN SAXO Car HONDA CIVIC
View Details

Accident 2007620174332

Slight
51.5982, -3.7790
2 vehicles 1 casualty
VAUXHALL CORSA (3y) FORD MONDEO (2y)
View Details

Accident 2007610100307

Slight
51.6018, -2.9766
2 vehicles 2 casualties
Car MAZDA 6 (4y)
View Details

Accident 200743R058127

Slight
51.4997, -0.7048
3 vehicles 3 casualties
Goods 7.5 tonnes mgw and over JAGUAR SOVEREIGN FIAT STILO
View Details

Accident 2007520715225

Slight
51.4993, -2.3709
2 vehicles 1 casualty
SCANIA Model Missing VOLVO Model Missing
View Details

Accident 200743R200127

Slight
51.4930, -0.5160
3 vehicles 1 casualty
RENAULT LAGUNA (4y) MAZDA XEDOS BMW 3 SERIES
View Details

Accident 200743R047127

Slight
51.4456, -0.8228
3 vehicles 1 casualty
Goods 7.5 tonnes mgw and over HONDA ACCORD DAF TRUCKS FA 55LF (3y)
View Details

Accident 2007520715057

Serious
51.5527, -2.5488
2 vehicles 1 casualty
FORD FOCUS (4y) FORD KA
View Details