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 201543R087035

Slight
51.5113, -0.6537
3 vehicles 1 casualty
PEUGEOT 206 FORD KUGA (1y) Car
View Details

Accident 201563AC06215

Slight
51.7450, -4.0655
2 vehicles 1 casualty
Van / Goods 3.5 tonnes mgw or under Car
View Details

Accident 2015542223215

Slight
51.5467, -1.8568
3 vehicles 2 casualties
VOLKSWAGEN GOLF VAUXHALL VIVARO (2y) VOLKSWAGEN CC (2y)
View Details

Accident 2015542184915

Slight
51.5140, -2.1347
2 vehicles 1 casualty
VAUXHALL ZAFIRA Goods 7.5 tonnes mgw and over
View Details

Accident 201543W110035

Slight
51.4447, -1.0726
1 vehicle 1 casualty
Car
View Details

Accident 2015610018015

Slight
51.5787, -2.7170
2 vehicles 2 casualties
Car Car
View Details

Accident 201543W054035

Slight
51.4646, -1.2619
2 vehicles 1 casualty
Car Car
View Details

Accident 201543W043035

Slight
51.4240, -1.0328
1 vehicle 3 casualties
VAUXHALL CORSA
View Details

Accident 2015621500491

Slight
51.6080, -3.8038
1 vehicle 1 casualty
Car
View Details

Accident 201543W083035

Slight
51.4514, -1.3958
1 vehicle 2 casualties
VOLKSWAGEN POLO (1y)
View Details

Accident 2015621500380

Serious
51.5333, -3.5695
2 vehicles 2 casualties
Car Goods 7.5 tonnes mgw and over
View Details

Accident 201501XH30136

Slight
51.4929, -0.4169
4 vehicles 1 casualty
BMW X3 Car RENAULT CLIO PEUGEOT 207 (4y)
View Details

Accident 201543W205025

Slight
51.4606, -1.1704
6 vehicles 2 casualties
LAND ROVER RANGE ROVER (4y) PEUGEOT 307 Car TOYOTA RAV4 VAUXHALL MOKKA (1y) VOLKSWAGEN GOLF
View Details

Accident 2015541861015

Slight
51.5152, -1.6453
4 vehicles 1 casualty
MERCEDES E CLASS (1y) TOYOTA COROLLA AUDI A3 PEUGEOT 308 (3y)
View Details

Accident 201543W185025

Slight
51.4496, -1.0757
2 vehicles 1 casualty
VOLKSWAGEN GOLF FORD FOCUS (4y)
View Details

Accident 2015621500358

Slight
51.6604, -3.8756
2 vehicles 1 casualty
Car Car
View Details

Accident 2015621500350

Slight
51.5334, -3.5954
1 vehicle 1 casualty
Car
View Details

Accident 2015541697215

Fatal
51.5397, -1.8156
1 vehicle 1 casualty
SCANIA Model Missing
View Details

Accident 2015541672515

Slight
51.5421, -1.9798
4 vehicles 3 casualties
Car BMW 5 SERIES MINI COOPER (2y) FORD KA
View Details

Accident 201543W155025

Slight
51.4194, -0.9362
1 vehicle 1 casualty
VOLKSWAGEN POLO
View Details