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CrashStats

B4299 accidents: crash map and statistics

Police recorded 115 collisions on the B4299 from 1979 to 2025, with 142 casualties. Of those crashes, 3 were fatal and 36 serious, and 4 people were killed.

In 2025 there were 2 collisions on the B4299, up from none in 2024, with 2 casualties.

Collisions since 1979
115
3,897th highest of 4,923 roads
Casualties
142
1.23 per collision
Fatal collisions
3
4 people killed
Serious collisions
36
39 seriously injured
Collisions in 2025
2
Up from none in 2024
Casualties in 2025
2
Up from none in 2024

Crash severity on the B4299

On the B4299, 2.6% of collisions were fatal and 31% serious, against 1.6% and 18% across Great Britain.

Collisions by severity, 1979 to 2025

  • Fatal32.6%
  • Serious3631%
  • Slight7666%

Where the B4299 ranks among 4,923 roads

Most collisions
3,897th
Most casualties
3,983rd
Most fatal collisions
3,114th
Most serious collisions
3,408th

B4299 accidents by year

Collisions on the B4299 peaked at 6 in 2008 and were down to 2 in 2025.

Collisions and casualties on the B4299, 1979 to 2025

  • Collisions
  • Collisions in 2025: 2
  • Casualties

Source: Department for Transport, STATS19 road safety data

View as a table
YearCollisionsCasualties
202522
202400
202333
202211
202111
202034
201923
201855
201733
201622
201522
201400
201357
201234
201133
201023
200923
200866
200722
200600
200523
200400
200336
200212
200111
200047
199911
199822
199747
199656
199533
199411
199355
199247
199111
199034
198944
198822
198733
198622
198500
198413
198345
198255
198145
198000
197933

When crashes happen on the B4299

Friday has the most collisions on the B4299 (26), and 3pm to 6pm is the busiest time of day (29).

Collisions by day of the week

  • Monday13 (11%)
  • Tuesday16 (14%)
  • Wednesday18 (16%)
  • Thursday22 (19%)
  • Friday26 (23%)
  • Saturday9 (7.8%)
  • Sunday11 (9.6%)

Collisions by time of day

  • Midnight to 3am6 (5.2%)
  • 3am to 6am0 (0%)
  • 6am to 9am22 (19%)
  • 9am to noon17 (15%)
  • Noon to 3pm15 (13%)
  • 3pm to 6pm29 (25%)
  • 6pm to 9pm20 (17%)
  • 9pm to midnight6 (5.2%)

Collisions by month

  • January7 (6.1%)
  • February6 (5.2%)
  • March5 (4.3%)
  • April9 (7.8%)
  • May13 (11%)
  • June7 (6.1%)
  • July18 (16%)
  • August8 (7%)
  • September13 (11%)
  • October11 (9.6%)
  • November10 (8.7%)
  • December8 (7%)

Light conditions at the time

  • Daylight93 (81%)
  • Dark, no street lighting13 (11%)
  • Dark, street lights lit9 (7.8%)

Source: Department for Transport, STATS19 road safety data

Road and weather conditions in B4299 crashes

On the B4299, 51% of collisions happened where the speed limit was 60 mph and 60% on a dry road surface.

Speed limit at the scene

  • 20 mph2 (1.7%)
  • 30 mph53 (46%)
  • 40 mph1 (0.9%)
  • 60 mph59 (51%)

Weather at the time

  • Fine, no high winds86 (75%)
  • Raining, no high winds16 (14%)
  • Fog or mist6 (5.2%)
  • Fine with high winds2 (1.7%)
  • Other3 (2.6%)
  • Not recorded2 (1.7%)

Road surface

  • Dry69 (60%)
  • Wet or damp45 (39%)
  • Frost or ice1 (0.9%)

Type of road

  • Single carriageway114 (99%)
  • Dual carriageway1 (0.9%)

Source: Department for Transport, STATS19 road safety data

People hurt and vehicles involved in B4299 crashes

Car occupants make up 61% of the people killed or injured on the B4299, followed by motorcyclists (15%).

Casualties by road user

  • Car occupant86 (61%)
  • Motorcyclist22 (15%)
  • Pedestrian15 (11%)
  • Van occupant11 (7.7%)
  • Cyclist5 (3.5%)
  • Goods vehicle occupant (over 3.5 tonnes)1 (0.7%)
  • Minibus occupant1 (0.7%)
  • Other vehicle occupant1 (0.7%)

Vehicles involved

  • Car141 (68%)
  • Motorcycle20 (9.7%)
  • Van or goods vehicle up to 3.5 tonnes16 (7.7%)
  • Goods vehicle over 3.5 tonnes13 (6.3%)
  • Pedal cycle5 (2.4%)
  • Bus or coach4 (1.9%)
  • Other vehicle4 (1.9%)
  • Other4 (1.9%)

Casualties by age

  • 0 to 51 (0.7%)
  • 6 to 104 (2.8%)
  • 11 to 1510 (7%)
  • 16 to 2021 (15%)
  • 21 to 2522 (15%)
  • 26 to 3527 (19%)
  • 36 to 4519 (13%)
  • 46 to 5511 (7.7%)
  • 56 to 6512 (8.5%)
  • 66 to 758 (5.6%)
  • Over 757 (4.9%)

Drivers, passengers and pedestrians

  • Driver or rider102 (72%)
  • Passenger25 (18%)
  • Pedestrian15 (11%)

Source: Department for Transport, STATS19 road safety data

Map of recent crashes on the B4299

Map of the 25 most recent crashes on the B4299

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

  • 25 crashes
  • Serious
  • Slight

B4299 crashes by council area

All 115 collisions on the B4299 were in Carmarthenshire.

Collisions on the B4299 in each area, 1979 to 2025
RankAreaCollisionsCasualtiesFatalSerious
1stCarmarthenshire115142336

B4299 crashes by town

Of the 115 collisions on the B4299, 47 were in the built-up area of St Clears.

Recent crashes on the B4299

These are the 25 most recent collisions on the B4299, from 22 October 2013 to 31 December 2025.

Severity