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CrashStats

A477 accidents: crash map and statistics

Police recorded 1,704 collisions on the A477 from 1979 to 2025, with 2,990 casualties. Of those crashes, 64 were fatal and 525 serious, and 74 people were killed.

In 2025 there were 36 collisions on the A477, up 29% from 28 in 2024, with 68 casualties.

Collisions since 1979
1,704
672nd highest of 4,923 roads
Casualties
2,990
1.75 per collision
Fatal collisions
64
74 people killed
Serious collisions
525
796 seriously injured
Collisions in 2025
36
Up 29% on 2024
Casualties in 2025
68
Up 51% on 2024

Crash severity on the A477

On the A477, 3.8% of collisions were fatal and 31% serious, against 1.6% and 18% across Great Britain.

Collisions by severity, 1979 to 2025

  • Fatal643.8%
  • Serious52531%
  • Slight1,11565%

Where the A477 ranks among 4,923 roads

Most collisions
672nd
Most casualties
540th
Most fatal collisions
326th
Most serious collisions
400th

A477 accidents by year

Collisions on the A477 peaked at 62 in 1990 and were down to 36 in 2025.

Collisions and casualties on the A477, 1979 to 2025

  • Collisions
  • Collisions in 2025
  • Casualties

Source: Department for Transport, STATS19 road safety data

View as a table
YearCollisionsCasualties
20253668
20242845
20232037
20222140
20211926
20201317
20192441
20183659
20173553
20162035
20153054
20142336
20132136
20123163
20112855
20102532
20093765
20082643
20073586
20064274
20053461
20044055
20034184
20024389
20014588
20003661
19993662
19983553
19975490
19964681
19954583
19944999
19934891
19924765
19914797
199062128
19894576
19883959
19873464
19864366
19854055
19843554
19832239
19825292
19814686
19804573
19794574

When crashes happen on the A477

Saturday has the most collisions on the A477 (268), and 3pm to 6pm is the busiest time of day (444).

Collisions by day of the week

  • Monday243 (14%)
  • Tuesday244 (14%)
  • Wednesday244 (14%)
  • Thursday231 (14%)
  • Friday258 (15%)
  • Saturday268 (16%)
  • Sunday216 (13%)

Collisions by time of day

  • Midnight to 3am86 (5%)
  • 3am to 6am32 (1.9%)
  • 6am to 9am166 (9.7%)
  • 9am to noon272 (16%)
  • Noon to 3pm362 (21%)
  • 3pm to 6pm444 (26%)
  • 6pm to 9pm231 (14%)
  • 9pm to midnight111 (6.5%)

Collisions by month

  • January88 (5.2%)
  • February106 (6.2%)
  • March119 (7%)
  • April144 (8.5%)
  • May139 (8.2%)
  • June130 (7.6%)
  • July191 (11%)
  • August193 (11%)
  • September166 (9.7%)
  • October143 (8.4%)
  • November141 (8.3%)
  • December144 (8.5%)

Light conditions at the time

  • Daylight1,282 (75%)
  • Dark, no street lighting317 (19%)
  • Dark, street lights lit88 (5.2%)
  • Dark, street lights unlit8 (0.5%)
  • Dark, lighting unknown7 (0.4%)
  • Not recorded2 (0.1%)

Source: Department for Transport, STATS19 road safety data

Road and weather conditions in A477 crashes

On the A477, 75% of collisions happened where the speed limit was 60 mph and 62% on a dry road surface.

Speed limit at the scene

  • 20 mph1 (0.1%)
  • 30 mph164 (9.6%)
  • 40 mph220 (13%)
  • 50 mph30 (1.8%)
  • 60 mph1,272 (75%)
  • 70 mph17 (1%)

Weather at the time

  • Fine, no high winds1,232 (72%)
  • Raining, no high winds246 (14%)
  • Raining with high winds64 (3.8%)
  • Fine with high winds51 (3%)
  • Other97 (5.7%)
  • Not recorded14 (0.8%)

Road surface

  • Dry1,063 (62%)
  • Wet or damp597 (35%)
  • Frost or ice31 (1.8%)
  • Snow6 (0.4%)
  • Other5 (0.3%)
  • Not recorded2 (0.1%)

Type of road

  • Single carriageway1,548 (91%)
  • Roundabout94 (5.5%)
  • Dual carriageway59 (3.5%)
  • One way street or slip road2 (0.1%)
  • Not recorded1 (0.1%)

Source: Department for Transport, STATS19 road safety data

People hurt and vehicles involved in A477 crashes

Car occupants make up 80% of the people killed or injured on the A477, followed by motorcyclists (6.6%).

Casualties by road user

  • Car occupant2,394 (80%)
  • Motorcyclist198 (6.6%)
  • Van occupant99 (3.3%)
  • Bus or coach occupant72 (2.4%)
  • Pedestrian67 (2.2%)
  • Goods vehicle occupant (over 3.5 tonnes)50 (1.7%)
  • Cyclist46 (1.5%)
  • Other64 (2.1%)

Vehicles involved

  • Car2,725 (78%)
  • Goods vehicle over 3.5 tonnes229 (6.5%)
  • Motorcycle190 (5.4%)
  • Van or goods vehicle up to 3.5 tonnes178 (5.1%)
  • Pedal cycle50 (1.4%)
  • Other vehicle49 (1.4%)
  • Bus or coach37 (1.1%)
  • Other39 (1.1%)

Casualties by age

  • 0 to 572 (2.4%)
  • 6 to 1080 (2.7%)
  • 11 to 15110 (3.7%)
  • 16 to 20439 (15%)
  • 21 to 25404 (14%)
  • 26 to 35536 (18%)
  • 36 to 45422 (14%)
  • 46 to 55341 (11%)
  • 56 to 65269 (9%)
  • 66 to 75195 (6.5%)
  • Over 75118 (3.9%)
  • Not recorded4 (0.1%)

Drivers, passengers and pedestrians

  • Driver or rider1,691 (57%)
  • Passenger1,232 (41%)
  • Pedestrian67 (2.2%)

Source: Department for Transport, STATS19 road safety data

Map of recent crashes on the A477

Map of the 25 most recent crashes on the A477

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

  • 25 crashes
  • Serious
  • Slight

A477 crashes by council area

Collisions on the A477 were recorded in 2 council areas. Pembrokeshire has the most, with 1,375, followed by Carmarthenshire (328).

Collisions on the A477 in each area, 1979 to 2025
RankAreaCollisionsCasualtiesFatalSerious
1stPembrokeshire1,3752,34746407
2ndCarmarthenshire32864217118

A477 crashes by town

Collisions on the A477 were recorded in 3 towns and built-up areas, led by Pembroke Dock (165) and Neyland (12).

Recent crashes on the A477

These are the 25 most recent collisions on the A477, from 1 May to 21 December 2025.

Severity