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CrashStats

A4139 accidents: crash map and statistics

Police recorded 1,097 collisions on the A4139 from 1979 to 2025, with 1,575 casualties. Of those crashes, 28 were fatal and 326 serious, and 29 people were killed.

In 2025 there were 8 collisions on the A4139, down 43% from 14 in 2024, with 12 casualties.

Collisions since 1979
1,097
994th highest of 4,923 roads
Casualties
1,575
1.44 per collision
Fatal collisions
28
29 people killed
Serious collisions
326
432 seriously injured
Collisions in 2025
8
Down 43% on 2024
Casualties in 2025
12
Down 37% on 2024

Crash severity on the A4139

On the A4139, 2.6% of collisions were fatal and 30% serious, against 1.6% and 18% across Great Britain.

Collisions by severity, 1979 to 2025

  • Fatal282.6%
  • Serious32630%
  • Slight74368%

Where the A4139 ranks among 4,923 roads

Most collisions
994th
Most casualties
943rd
Most fatal collisions
715th
Most serious collisions
655th

A4139 accidents by year

Collisions on the A4139 peaked at 45 in 1990 and were down to 8 in 2025.

Collisions and casualties on the A4139, 1979 to 2025

  • Collisions
  • Collisions in 2025: 8
  • Casualties

Source: Department for Transport, STATS19 road safety data

View as a table
YearCollisionsCasualties
2025812
20241419
20231317
20221116
2021712
2020912
20191112
20181620
20171011
2016911
20151212
2014810
20131517
20122428
20112125
20102739
20092326
20081522
20072532
20062835
20051823
20042948
20032845
20021922
20012329
20001925
19992032
19981922
19972338
19963247
19952640
19941939
199336123
19923846
19914065
19904564
19893964
19883952
19873240
19862433
19853141
19843952
19833750
19821821
19813239
19803143
19793544

When crashes happen on the A4139

Friday has the most collisions on the A4139 (209), and 3pm to 6pm is the busiest time of day (265).

Collisions by day of the week

  • Monday125 (11%)
  • Tuesday156 (14%)
  • Wednesday159 (14%)
  • Thursday152 (14%)
  • Friday209 (19%)
  • Saturday168 (15%)
  • Sunday128 (12%)

Collisions by time of day

  • Midnight to 3am83 (7.6%)
  • 3am to 6am8 (0.7%)
  • 6am to 9am63 (5.7%)
  • 9am to noon158 (14%)
  • Noon to 3pm228 (21%)
  • 3pm to 6pm265 (24%)
  • 6pm to 9pm176 (16%)
  • 9pm to midnight116 (11%)

Collisions by month

  • January77 (7%)
  • February73 (6.7%)
  • March83 (7.6%)
  • April80 (7.3%)
  • May91 (8.3%)
  • June93 (8.5%)
  • July119 (11%)
  • August139 (13%)
  • September99 (9%)
  • October69 (6.3%)
  • November80 (7.3%)
  • December94 (8.6%)

Light conditions at the time

  • Daylight775 (71%)
  • Dark, street lights lit214 (20%)
  • Dark, no street lighting87 (7.9%)
  • Dark, street lights unlit10 (0.9%)
  • Dark, lighting unknown8 (0.7%)
  • Not recorded3 (0.3%)

Source: Department for Transport, STATS19 road safety data

Road and weather conditions in A4139 crashes

On the A4139, 60% of collisions happened where the speed limit was 30 mph and 65% on a dry road surface.

Speed limit at the scene

  • 20 mph18 (1.6%)
  • 30 mph660 (60%)
  • 40 mph116 (11%)
  • 50 mph9 (0.8%)
  • 60 mph292 (27%)
  • Not recorded2 (0.2%)

Weather at the time

  • Fine, no high winds816 (74%)
  • Raining, no high winds164 (15%)
  • Raining with high winds38 (3.5%)
  • Fine with high winds28 (2.6%)
  • Other41 (3.7%)
  • Not recorded10 (0.9%)

Road surface

  • Dry715 (65%)
  • Wet or damp364 (33%)
  • Frost or ice8 (0.7%)
  • Flood over 3cm deep4 (0.4%)
  • Snow3 (0.3%)
  • Not recorded3 (0.3%)

Type of road

  • Single carriageway962 (88%)
  • One way street or slip road85 (7.7%)
  • Roundabout37 (3.4%)
  • Dual carriageway11 (1%)
  • Not recorded2 (0.2%)

Source: Department for Transport, STATS19 road safety data

People hurt and vehicles involved in A4139 crashes

Car occupants make up 57% of the people killed or injured on the A4139, followed by pedestrians (17%).

Casualties by road user

  • Car occupant900 (57%)
  • Pedestrian262 (17%)
  • Motorcyclist183 (12%)
  • Cyclist73 (4.6%)
  • Bus or coach occupant64 (4.1%)
  • Van occupant48 (3%)
  • Taxi or private hire car occupant18 (1.1%)
  • Other27 (1.7%)

Vehicles involved

  • Car1,383 (73%)
  • Motorcycle194 (10%)
  • Van or goods vehicle up to 3.5 tonnes87 (4.6%)
  • Pedal cycle78 (4.1%)
  • Goods vehicle over 3.5 tonnes38 (2%)
  • Taxi or private hire car38 (2%)
  • Bus or coach29 (1.5%)
  • Other36 (1.9%)

Casualties by age

  • 0 to 540 (2.5%)
  • 6 to 10117 (7.4%)
  • 11 to 1595 (6%)
  • 16 to 20355 (23%)
  • 21 to 25180 (11%)
  • 26 to 35225 (14%)
  • 36 to 45195 (12%)
  • 46 to 55122 (7.7%)
  • 56 to 65112 (7.1%)
  • 66 to 7577 (4.9%)
  • Over 7556 (3.6%)
  • Not recorded1 (0.1%)

Drivers, passengers and pedestrians

  • Driver or rider821 (52%)
  • Passenger492 (31%)
  • Pedestrian262 (17%)

Source: Department for Transport, STATS19 road safety data

Map of recent crashes on the A4139

Map of the 25 most recent crashes on the A4139

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

  • 25 crashes
  • Fatal
  • Serious
  • Slight

A4139 crashes by council area

Of the 1,097 collisions on the A4139, 1,096 were in Pembrokeshire.

Collisions on the A4139 in each area, 1979 to 2025
RankAreaCollisionsCasualtiesFatalSerious
1stPembrokeshire1,0961,57428326

A4139 crashes by town

Collisions on the A4139 were recorded in 3 towns and built-up areas, led by Pembroke (332) and Pembroke Dock (246).

Recent crashes on the A4139

These are the 25 most recent collisions on the A4139, from 10 September 2023 to 1 December 2025.

Severity