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 201543W272075

Serious
51.4606, -1.1763
1 vehicle 1 casualty
FORD FIESTA
View Details

Accident 2015621501272

Slight
51.6801, -3.9265
1 vehicle 1 casualty
Motorcycle over 500cc
View Details

Accident 201543R243075

Slight
51.4932, -0.5203
4 vehicles 2 casualties
MERCEDES Model Missing (3y) Goods 7.5 tonnes mgw and over Van / Goods 3.5 tonnes mgw or under FORD TRANSIT CUSTOM (1y)
View Details

Accident 2015621501255

Slight
51.5156, -3.6804
1 vehicle 1 casualty
Car
View Details

Accident 201543R269075

Slight
51.5038, -0.6166
2 vehicles 1 casualty
HONDA VFR 1200 (2y) FORD FOCUS
View Details

Accident 2015521505916

Slight
51.5444, -2.5463
2 vehicles 1 casualty
MERCEDES E CLASS Car
View Details

Accident 2015546728215

Fatal
51.4898, -1.5781
2 vehicles 4 casualties
VAUXHALL ZAFIRA AUDI A4
View Details

Accident 201501XH30532

Slight
51.4942, -0.4823
2 vehicles 3 casualties
CITROEN XSARA TOYOTA PRIUS
View Details

Accident 201543W233075

Slight
51.4933, -0.5231
3 vehicles 11 casualties
IVECO DAILY (4y) Minibus (8-16 passenger seats) LAND ROVER DISCOVERY (3y)
View Details

Accident 201501TX20521

Slight
51.4878, -0.3830
2 vehicles 1 casualty
MINI COOPER MERCEDES C CLASS
View Details

Accident 201501TX20531

Slight
51.4877, -0.3837
1 vehicle 1 casualty
BMW X5 (1y)
View Details

Accident 201501XH30530

Slight
51.4877, -0.4532
2 vehicles 1 casualty
Minibus (8-16 passenger seats) Vehicle
View Details

Accident 201501TX20547

Slight
51.4918, -0.2833
2 vehicles 1 casualty
Taxi/Private hire car KAWASAKI EX650
View Details

Accident 201543W246075

Slight
51.4558, -1.4914
2 vehicles 3 casualties
PEUGEOT 206 MINI COOPER
View Details

Accident 2015521505349

Slight
51.5193, -2.5227
3 vehicles 2 casualties
Car VAUXHALL CORSA Car
View Details

Accident 2015546571615

Slight
51.5123, -2.2884
2 vehicles 2 casualties
FIAT PUNTO MERCEDES Model Missing
View Details

Accident 201543R229075

Slight
51.4888, -0.5538
4 vehicles 3 casualties
RENAULT CLIO VAUXHALL ASTRA MINI PACEMAN FORD MONDEO (1y)
View Details

Accident 201501TX20518

Slight
51.4918, -0.2906
2 vehicles 1 casualty
MERCEDES C CLASS (2y) Taxi/Private hire car
View Details

Accident 201543W231075

Slight
51.5050, -0.6249
3 vehicles 1 casualty
VAUXHALL ASTRA FORD TRANSIT (3y) MERCEDES VIANO (2y)
View Details

Accident 2015521505245

Slight
51.5157, -2.5197
2 vehicles 1 casualty
DAF TRUCKS FTG 95XF KIA PICANTO
View Details