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CrashStats

A4143 accidents: crash map and statistics

Police recorded 86 collisions on the A4143 from 1979 to 2025, with 119 casualties. Of those crashes, 2 were fatal and 20 serious, and 2 people were killed.

In 2025 there were 2 collisions on the A4143, up from none in 2024, with 2 casualties.

Collisions since 1979
86
4,173rd highest of 4,923 roads
Casualties
119
1.38 per collision
Fatal collisions
2
2 people killed
Serious collisions
20
26 seriously injured
Collisions in 2025
2
Up from none in 2024
Casualties in 2025
2
Up from none in 2024

Crash severity on the A4143

On the A4143, 2.3% of collisions were fatal and 23% serious, against 1.6% and 18% across Great Britain.

Collisions by severity, 1979 to 2025

  • Fatal22.3%
  • Serious2023%
  • Slight6474%

Where the A4143 ranks among 4,923 roads

Most collisions
4,173rd
Most casualties
4,158th
Most fatal collisions
3,485th
Most serious collisions
4,033rd

A4143 accidents by year

Collisions on the A4143 peaked at 6 in 1987 and were down to 2 in 2025.

Collisions and casualties on the A4143, 1979 to 2025

  • Collisions
  • Collisions in 2025: 2
  • Casualties

Source: Department for Transport, STATS19 road safety data

View as a table
YearCollisionsCasualties
202522
202400
202300
202211
202100
202000
201911
201813
201723
201600
201500
201400
201300
201200
201111
201000
200911
200800
200722
200600
200535
200435
200322
200200
200124
200045
199922
199845
199734
199622
199533
199422
199322
199213
199122
199034
198913
198845
198768
198623
198557
1984612
198311
198224
198145
198022
197945

When crashes happen on the A4143

Tuesday has the most collisions on the A4143 (24), and 3pm to 6pm is the busiest time of day (28).

Collisions by day of the week

  • Monday11 (13%)
  • Tuesday24 (28%)
  • Wednesday12 (14%)
  • Thursday14 (16%)
  • Friday11 (13%)
  • Saturday7 (8.1%)
  • Sunday7 (8.1%)

Collisions by time of day

  • Midnight to 3am1 (1.2%)
  • 3am to 6am2 (2.3%)
  • 6am to 9am7 (8.1%)
  • 9am to noon19 (22%)
  • Noon to 3pm18 (21%)
  • 3pm to 6pm28 (33%)
  • 6pm to 9pm8 (9.3%)
  • 9pm to midnight3 (3.5%)

Collisions by month

  • January5 (5.8%)
  • February5 (5.8%)
  • March6 (7%)
  • April9 (10%)
  • May3 (3.5%)
  • June7 (8.1%)
  • July8 (9.3%)
  • August10 (12%)
  • September5 (5.8%)
  • October13 (15%)
  • November6 (7%)
  • December9 (10%)

Light conditions at the time

  • Daylight72 (84%)
  • Dark, street lights lit14 (16%)

Source: Department for Transport, STATS19 road safety data

Road and weather conditions in A4143 crashes

On the A4143, 94% of collisions happened where the speed limit was 30 mph and 76% on a dry road surface.

Speed limit at the scene

  • 20 mph2 (2.3%)
  • 30 mph81 (94%)
  • 50 mph1 (1.2%)
  • 60 mph2 (2.3%)

Weather at the time

  • Fine, no high winds71 (83%)
  • Raining, no high winds11 (13%)
  • Fine with high winds1 (1.2%)
  • Fog or mist1 (1.2%)
  • Snowing, no high winds1 (1.2%)
  • Not recorded1 (1.2%)

Road surface

  • Dry65 (76%)
  • Wet or damp20 (23%)
  • Snow1 (1.2%)

Type of road

  • Single carriageway81 (94%)
  • Roundabout4 (4.7%)
  • Dual carriageway1 (1.2%)

Source: Department for Transport, STATS19 road safety data

People hurt and vehicles involved in A4143 crashes

Car occupants make up 71% of the people killed or injured on the A4143, followed by motorcyclists (15%).

Casualties by road user

  • Car occupant84 (71%)
  • Motorcyclist18 (15%)
  • Pedestrian8 (6.7%)
  • Cyclist5 (4.2%)
  • Goods vehicle occupant (over 3.5 tonnes)2 (1.7%)
  • Bus or coach occupant1 (0.8%)
  • Van occupant1 (0.8%)

Vehicles involved

  • Car123 (76%)
  • Motorcycle16 (9.9%)
  • Goods vehicle over 3.5 tonnes7 (4.3%)
  • Pedal cycle5 (3.1%)
  • Van or goods vehicle up to 3.5 tonnes5 (3.1%)
  • Bus or coach2 (1.2%)
  • Other vehicle2 (1.2%)
  • Minibus1 (0.6%)

Casualties by age

  • 0 to 51 (0.8%)
  • 11 to 158 (6.7%)
  • 16 to 2024 (20%)
  • 21 to 2513 (11%)
  • 26 to 3518 (15%)
  • 36 to 4513 (11%)
  • 46 to 5516 (13%)
  • 56 to 659 (7.6%)
  • 66 to 757 (5.9%)
  • Over 757 (5.9%)
  • Not recorded3 (2.5%)

Drivers, passengers and pedestrians

  • Driver or rider77 (65%)
  • Passenger34 (29%)
  • Pedestrian8 (6.7%)

Source: Department for Transport, STATS19 road safety data

Map of recent crashes on the A4143

Map of the 25 most recent crashes on the A4143

Use the arrow keys to move the map and the plus and minus keys to zoom.

  • 25 crashes
  • Fatal
  • Serious
  • Slight

A4143 crashes by council area

Of the 86 collisions on the A4143, 83 were in Monmouthshire.

Collisions on the A4143 in each area, 1979 to 2025
RankAreaCollisionsCasualtiesFatalSerious
1stMonmouthshire83115220

A4143 crashes by town

Of the 86 collisions on the A4143, 32 were in the built-up area of Abergavenny.

Recent crashes on the A4143

These are the 25 most recent collisions on the A4143, from 2 August 2000 to 12 December 2025.

Severity