M4 crash in West Berkshire on 20 March 1986 at 16:55 involving a car
Two cars were involved in a crash on the M4 in West Berkshire at 16:55 on Thursday 20 March 1986. A 54-year-old female passenger in vehicle 1 and the 43-year-old male driver of vehicle 2 were slightly injured.
It happened in daylight in the rain on a wet dual carriageway with a 70 mph limit, away from any junction.
- Severity
- Slight
- Date
- 20 Mar 1986
- Thursday, 16:55
- Vehicles
- 2
- Car and another
- Casualties
- 2
- 2 slightly injured
Location of the crash
Police recorded the crash at latitude 51.45256, longitude -1.38257, in the RG20 postcode district.
Map of where the crash happened in West Berkshire
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- 1 crash
- Slight
Collision details
Basic information
- Reference
- 198643F074036
- Council area
- West Berkshire
- Police force
- Thames Valley
Road and location details
- First road class
- Motorway
- First road number
- 4
- Road type
- Dual carriageway
- Speed limit
- 70 mph
Junction information
- Junction type
- Not at junction or within 20 metres
Pedestrian crossing information
- Crossing facilities
- No physical crossing facility within 50 m
Environmental conditions
- Light conditions
- Daylight
- Weather
- Raining, no high winds
- Road surface
- Wet or damp
- Special conditions at the site
- Roadworks
- Carriageway hazards
- Roadworks
The 6 nearest recorded crashes
The nearest, at the same spot, was a serious injury crash on 5 August 1993.
Serious
Car crash on the M4 in West Berkshire, 5 August 1993
At the same spotRef 199343U012083
Fatal
MAN crash on the M4 in West Berkshire, 19 December 1999
At the same spotRef 199943W267129
Fatal
Car crash on the M4 in West Berkshire, 25 September 1987
At the same spotRef 198743F087097
Slight
Van crash on the M4 in West Berkshire, 8 December 1989
14 m awayRef 198943F030129
Slight
Vauxhall Adam crash on the M4 in West Berkshire, 24 October 2025
16 m awayRef 2025430543718
Slight
Van crash on the M4 in West Berkshire, 21 April 1979
22 m awayRef 197943F044049
Vehicles involved (2)
Vehicle 1: Car
- Manoeuvre
- Waiting to go ahead
- Travelling from
- East
- Travelling to
- West
- Skidding and overturning
- Skidded
- First point of impact
- Front
- Driver sex
- Male
- Driver age
- 53 years
Vehicle 2: Car
- Manoeuvre
- Slowing or stopping
- Travelling from
- East
- Travelling to
- West
- First point of impact
- Back
- Driver sex
- Male
- Driver age
- 43 years
Casualties (2)
Casualty 1: Passenger
SlightFemale, aged 54, car occupant, in vehicle 1 (Car)
- Car passenger
- Front seat passenger
Casualty 2: Driver
SlightMale, aged 43, car occupant, in vehicle 2 (Car)
Data source
This record comes from the Department for Transport’s road safety data (STATS19), in which police forces in Great Britain record every road crash reported to them where someone was injured. It is reference 198643F074036 in the data published on GOV.UK under the Open Government Licence v3.0, and one of the crashes counted in the West Berkshire road accident statistics for 1986.