Serious B4021 crash in Three Rivers on 7 September 1979 at 23:20 involving a motorcycle
Two motorcycles and a car were involved in a crash on the B4021 in Three Rivers at 23:20 on Friday 7 September 1979. The 22-year-old male rider of vehicle 1 was seriously injured and the 21-year-old male rider of vehicle 2 was slightly injured.
It happened after dark under street lighting in fine weather on a dry one-way street or slip road with a 30 mph limit, at a junction.
- Severity
- Serious
- Date
- 7 Sep 1979
- Friday, 23:20
- Vehicles
- 3
- Motorcycle and 2 others
- Casualties
- 2
- 1 seriously injured, 1 slightly injured
Location of the crash
Police recorded the crash at latitude 51.63846, longitude -0.47255, in the WD3 postcode district and within the built-up area of Rickmansworth.
Map of where the crash happened in Three Rivers
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- 1 crash
- Serious
Collision details
Basic information
- Reference
- 19794141C2277
- Council area
- Three Rivers
- Police force
- Hertfordshire
Road and location details
- First road class
- B
- First road number
- 4021
- Road type
- One way street or slip road
- Speed limit
- 30 mph
Junction information
- Junction type
- Other junction
- Junction control
- Auto traffic signal
- Second road class
- B
- Second road number
- 4021
Pedestrian crossing information
- Crossing facilities
- Pedestrian phase at traffic signal
Environmental conditions
- Light conditions
- Dark, street lights lit
- Weather
- Fine, no high winds
- Road surface
- Dry
The 6 nearest recorded crashes
The nearest, at the same spot, was a slight injury crash on 4 January 1983.
Slight
Car crash on the B4021 in Three Rivers, 4 January 1983
At the same spotRef 19834141C2002
Slight
Car crash on an unclassified road in Three Rivers, 1 March 1988
At the same spotRef 19884141C2058
Slight
Mercedes 200 crash on an unclassified road in Three Rivers, 11 May 1990
At the same spotRef 19904141C0236
Slight
Chevrolet Matiz crash on an unclassified road in Three Rivers, 6 January 2025
35 m awayRef 2025411543087
Slight
Car crash on an unclassified road in Three Rivers, 18 January 2005
50 m awayRef 20054100C0092
Slight
Ford Escort crash on an unclassified road in Three Rivers, 14 August 1997
51 m awayRef 19974100C0538
Vehicles involved (3)
Vehicle 1: Motorcycle
- Manoeuvre
- Turning right
- Travelling from
- East
- Travelling to
- North
- Hit object in carriageway
- Kerb
- Leaving the carriageway
- Nearside
- First point of impact
- Nearside
- Driver sex
- Male
- Driver age
- 22 years
Vehicle 2: Motorcycle
- Manoeuvre
- Turning right
- Travelling from
- East
- Travelling to
- North
- Hit object in carriageway
- Kerb
- Leaving the carriageway
- Nearside
- First point of impact
- Nearside
- Driver sex
- Male
- Driver age
- 21 years
Vehicle 3: Car
- Manoeuvre
- Turning left
- Travelling from
- West
- Travelling to
- North
- First point of impact
- Did not impact
Casualties (2)
Casualty 1: Rider
SeriousMale, aged 22, motorcyclist, on vehicle 1 (Motorcycle)
Casualty 2: Rider
SlightMale, aged 21, motorcyclist, on vehicle 2 (Motorcycle)
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 19794141C2277 in the data published on GOV.UK under the Open Government Licence v3.0, and one of the crashes counted in the Three Rivers road accident statistics for 1979.