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CrashStats

Serious B474 crash in Buckinghamshire on 5 December 2025 at 23:01 involving a Mercedes C Class

A Mercedes C Class and a car were involved in a crash on the B474 in Buckinghamshire at 23:01 on Friday 5 December 2025. The 47-year-old male driver of the Mercedes C Class was seriously injured.

It happened after dark under street lighting in fine weather on a wet single carriageway with a 30 mph limit, away from any junction.

Severity
Serious
Date
5 Dec 2025
Friday, 23:01
Vehicles
2
Mercedes C Class and car
Casualties
1
1 seriously injured

Location of the crash

Police recorded the crash at latitude 51.63541, longitude -0.69059, in the HP10 postcode district and within the built-up area of Hazlemere. The location was in the former Chiltern district.

Map of where the crash happened in Buckinghamshire

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  • 1 crash
  • Serious

Collision details

Basic information

Reference
2025430619982
Council area
Buckinghamshire
Police force
Thames Valley
Police attended the scene
Yes

Road and location details

First road class
B
First road number
474
Road type
Single carriageway
Speed limit
30 mph
Urban or rural
Urban
Trunk road
Non-trunk road

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
Dark, street lights lit
Weather
Fine, no high winds
Road surface
Wet or damp

Enhanced collision data

Serious injury band
Less serious
How severity was recorded
From injuries recorded by police (CRASH system)
Estimated chance it was serious
100%
Estimated chance it was slight
0%

The 6 nearest recorded crashes

The nearest, 39 metres away, was a slight injury crash on 21 January 1979.

Vehicles involved (2)

  • Vehicle 1: Mercedes C Class

    Car

    Manoeuvre
    Going ahead
    Travelling from
    South
    Travelling to
    North
    Position at junction
    Not at or within 20 metres of junction
    Hit object in carriageway
    Parked vehicle
    Left-hand drive
    No
    Journey purpose
    Personal business or leisure
    Driver sex
    Male
    Driver age
    47 years
    Engine capacity
    2,143 cc
    Fuel or propulsion
    Diesel
    Driver home area deprivation
    10% least deprived
    Distance from driver's home
    5 to 10 km

  • Vehicle 2: Car

    Manoeuvre
    Parked
    Travelling from
    Parked
    Travelling to
    Parked
    Position at junction
    Not at or within 20 metres of junction
    Left-hand drive
    No
    Journey purpose
    Personal business or leisure
    Driver sex
    Female
    Driver home area deprivation
    10% least deprived
    Distance from driver's home
    20 to 100 km

Casualties (1)

  • Casualty 1: Driver

    Serious

    Male, aged 47, car occupant, in vehicle 1 (Mercedes C Class)

    Serious injury band
    Less serious
    Home area deprivation
    10% least deprived
    Distance from home
    5 to 10 km

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 2025430619982 in the data published on GOV.UK under the Open Government Licence v3.0, and one of the crashes counted in the Buckinghamshire road accident statistics for 2025.