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CrashStats

A4077 accidents: crash map and statistics

Police recorded 170 collisions on the A4077 from 1979 to 2025, with 241 casualties. Of those crashes, 2 were fatal and 44 serious, and 2 people were killed.

In 2025 there were 2 collisions on the A4077, up 100% from 1 in 2024, with 2 casualties.

Collisions since 1979
170
3,444th highest of 4,923 roads
Casualties
241
1.42 per collision
Fatal collisions
2
2 people killed
Serious collisions
44
52 seriously injured
Collisions in 2025
2
Up 100% on 2024
Casualties in 2025
2
Up 100% on 2024

Crash severity on the A4077

On the A4077, 1.2% of collisions were fatal and 26% serious, against 1.6% and 18% across Great Britain.

Collisions by severity, 1979 to 2025

  • Fatal21.2%
  • Serious4426%
  • Slight12473%

Where the A4077 ranks among 4,923 roads

Most collisions
3,444th
Most casualties
3,392nd
Most fatal collisions
3,485th
Most serious collisions
3,144th

A4077 accidents by year

Collisions on the A4077 peaked at 9 in 1990 and were down to 2 in 2025.

Collisions and casualties on the A4077, 1979 to 2025

  • Collisions
  • Collisions in 2025: 2
  • Casualties

Source: Department for Transport, STATS19 road safety data

View as a table
YearCollisionsCasualties
202522
202411
202335
202211
202111
202033
201922
201834
201746
201611
201522
201433
201311
201222
201100
201011
200923
200822
200745
200636
200569
2004614
200300
200222
200127
200044
199933
1998819
199726
199644
199534
199446
199323
199268
199166
1990910
1989711
1988714
198766
198656
198588
198455
1983610
198247
198145
198033
1979710

When crashes happen on the A4077

Wednesday has the most collisions on the A4077 (32), and 3pm to 6pm is the busiest time of day (50).

Collisions by day of the week

  • Monday22 (13%)
  • Tuesday16 (9.4%)
  • Wednesday32 (19%)
  • Thursday21 (12%)
  • Friday27 (16%)
  • Saturday27 (16%)
  • Sunday25 (15%)

Collisions by time of day

  • Midnight to 3am4 (2.4%)
  • 3am to 6am2 (1.2%)
  • 6am to 9am10 (5.9%)
  • 9am to noon22 (13%)
  • Noon to 3pm37 (22%)
  • 3pm to 6pm50 (29%)
  • 6pm to 9pm31 (18%)
  • 9pm to midnight14 (8.2%)

Collisions by month

  • January19 (11%)
  • February14 (8.2%)
  • March10 (5.9%)
  • April11 (6.5%)
  • May15 (8.8%)
  • June12 (7.1%)
  • July13 (7.6%)
  • August13 (7.6%)
  • September19 (11%)
  • October14 (8.2%)
  • November14 (8.2%)
  • December16 (9.4%)

Light conditions at the time

  • Daylight127 (75%)
  • Dark, no street lighting22 (13%)
  • Dark, street lights lit17 (10%)
  • Dark, lighting unknown3 (1.8%)
  • Not recorded1 (0.6%)

Source: Department for Transport, STATS19 road safety data

Road and weather conditions in A4077 crashes

On the A4077, 48% of collisions happened where the speed limit was 60 mph and 65% on a dry road surface.

Speed limit at the scene

  • 20 mph3 (1.8%)
  • 30 mph79 (46%)
  • 40 mph1 (0.6%)
  • 50 mph1 (0.6%)
  • 60 mph81 (48%)
  • 70 mph5 (2.9%)

Weather at the time

  • Fine, no high winds135 (79%)
  • Raining, no high winds17 (10%)
  • Fog or mist3 (1.8%)
  • Raining with high winds3 (1.8%)
  • Other11 (6.5%)
  • Not recorded1 (0.6%)

Road surface

  • Dry111 (65%)
  • Wet or damp50 (29%)
  • Frost or ice6 (3.5%)
  • Flood over 3cm deep1 (0.6%)
  • Snow1 (0.6%)
  • Not recorded1 (0.6%)

Type of road

  • Single carriageway166 (98%)
  • One way street or slip road3 (1.8%)
  • Roundabout1 (0.6%)

Source: Department for Transport, STATS19 road safety data

People hurt and vehicles involved in A4077 crashes

Car occupants make up 59% of the people killed or injured on the A4077, followed by pedestrians (13%).

Casualties by road user

  • Car occupant141 (59%)
  • Pedestrian31 (13%)
  • Motorcyclist29 (12%)
  • Van occupant11 (4.6%)
  • Bus or coach occupant8 (3.3%)
  • Minibus occupant7 (2.9%)
  • Cyclist6 (2.5%)
  • Other8 (3.3%)

Vehicles involved

  • Car209 (73%)
  • Motorcycle24 (8.4%)
  • Van or goods vehicle up to 3.5 tonnes18 (6.3%)
  • Goods vehicle over 3.5 tonnes12 (4.2%)
  • Other vehicle7 (2.4%)
  • Pedal cycle6 (2.1%)
  • Bus or coach5 (1.7%)
  • Other5 (1.7%)

Casualties by age

  • 0 to 55 (2.1%)
  • 6 to 1011 (4.6%)
  • 11 to 1514 (5.8%)
  • 16 to 2050 (21%)
  • 21 to 2538 (16%)
  • 26 to 3542 (17%)
  • 36 to 4527 (11%)
  • 46 to 5522 (9.1%)
  • 56 to 6518 (7.5%)
  • 66 to 759 (3.7%)
  • Over 754 (1.7%)
  • Not recorded1 (0.4%)

Drivers, passengers and pedestrians

  • Driver or rider137 (57%)
  • Passenger73 (30%)
  • Pedestrian31 (13%)

Source: Department for Transport, STATS19 road safety data

Map of recent crashes on the A4077

Map of the 25 most recent crashes on the A4077

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

  • 25 crashes
  • Serious
  • Slight

A4077 crashes by council area

Collisions on the A4077 were recorded in 3 council areas. Monmouthshire has the most, with 87, followed by Powys (78) and Blaenau Gwent (3).

Collisions on the A4077 in each area, 1979 to 2025
RankAreaCollisionsCasualtiesFatalSerious
1stMonmouthshire87126019
2ndPowys78105223
3rdBlaenau Gwent3300

A4077 crashes by town

Of the 170 collisions on the A4077, 13 were in the built-up area of Crickhowell.

Recent crashes on the A4077

These are the 25 most recent collisions on the A4077, from 2 September 2014 to 28 December 2025.

Severity