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 199962G034599

Slight
51.5358, -3.7273
1 vehicle 1 casualty
ROVER 400 SERIES
View Details

Accident 199901TX01085

Slight
51.4909, -0.3641
2 vehicles 1 casualty
BMW 3 SERIES (1y) VAUXHALL ASTRA
View Details

Accident 199962G035099

Slight
51.6003, -3.8063
2 vehicles 1 casualty
ROVER 600 SERIES AUDI 80
View Details

Accident 199943R313109

Slight
51.4914, -0.5048
3 vehicles 1 casualty
Goods 7.5 tonnes mgw and over Goods 7.5 tonnes mgw and over Vehicle
View Details

Accident 199962E028099

Slight
51.5052, -3.3183
2 vehicles 1 casualty
VAUXHALL ASTRA FORD TRANSIT (1y)
View Details

Accident 1999610137899

Slight
51.5952, -3.0205
4 vehicles 1 casualty
FORD ESCORT VAUXHALL NOVA FORD ESCORT Goods 7.5 tonnes mgw and over
View Details

Accident 199943R396109

Slight
51.4931, -0.5209
3 vehicles 1 casualty
NISSAN BLUEBIRD MAZDA MX-5 (1y) VAUXHALL VECTRA
View Details

Accident 199943W269109

Slight
51.4630, -1.2202
2 vehicles 2 casualties
CHRYSLER VOYAGER Vehicle
View Details

Accident 199943R331109

Slight
51.5079, -0.8553
2 vehicles 1 casualty
FORD SIERRA MITSUBISHI SHOGUN
View Details

Accident 199943R291109

Slight
51.4238, -1.0324
4 vehicles 4 casualties
Vehicle VAUXHALL VECTRA (1y) MITSUBISHI CARISMA (1y) Vehicle
View Details

Accident 199943R295109

Slight
51.4928, -0.5350
4 vehicles 1 casualty
PEUGEOT 106 (1y) CITROEN BX FORD FIESTA (3y) BMW 3 SERIES (2y)
View Details

Accident 199943R259109

Serious
51.4930, -0.5238
4 vehicles 6 casualties
Vehicle PEUGEOT 205 FORD MONDEO VAUXHALL VECTRA
View Details

Accident 199954MB09499

Slight
51.5301, -1.7532
2 vehicles 2 casualties
ROVER 400 SERIES (1y) IVECO-FORD Model Missing (4y)
View Details

Accident 199943R272109

Slight
51.4388, -0.8320
3 vehicles 1 casualty
LEYLAND DAF 400 MG MGF VOLKSWAGEN POLO
View Details

Accident 199943W241109

Slight
51.4531, -1.3250
2 vehicles 1 casualty
FORD MONDEO (1y) KIA PRIDE
View Details

Accident 199962L027999

Slight
51.5447, -3.1536
1 vehicle 1 casualty
TOYOTA COROLLA (2y)
View Details

Accident 199962F039199

Slight
51.5141, -3.4995
2 vehicles 1 casualty
Vehicle VAUXHALL ASTRA (2y)
View Details

Accident 1999520130729

Slight
51.5402, -2.5424
2 vehicles 2 casualties
MAN Model Missing Goods 7.5 tonnes mgw and over
View Details

Accident 1999520127850

Slight
51.5184, -2.5218
2 vehicles 1 casualty
HONDA Model Missing Van / Goods 3.5 tonnes mgw or under
View Details

Accident 199943R202109

Slight
51.4235, -0.8967
1 vehicle 1 casualty
FORD TRANSIT
View Details