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CrashStats

B4248 accidents: crash map and statistics

Police recorded 213 collisions on the B4248 from 1979 to 2025, with 308 casualties. Of those crashes, 7 were fatal and 38 serious, and 7 people were killed.

In 2025 there were 2 collisions on the B4248, down 33% from 3 in 2024, with 2 casualties.

Collisions since 1979
213
3,163rd highest of 4,923 roads
Casualties
308
1.45 per collision
Fatal collisions
7
7 people killed
Serious collisions
38
44 seriously injured
Collisions in 2025
2
Down 33% on 2024
Casualties in 2025
2
Down 50% on 2024

Crash severity on the B4248

On the B4248, 3.3% of collisions were fatal and 18% serious, against 1.6% and 18% across Great Britain.

Collisions by severity, 1979 to 2025

  • Fatal73.3%
  • Serious3818%
  • Slight16879%

Where the B4248 ranks among 4,923 roads

Most collisions
3,163rd
Most casualties
3,088th
Most fatal collisions
2,103rd
Most serious collisions
3,345th

B4248 accidents by year

Collisions on the B4248 peaked at 13 in 1990 and were down to 2 in 2025.

Collisions and casualties on the B4248, 1979 to 2025

  • Collisions
  • Collisions in 2025: 2
  • Casualties

Source: Department for Transport, STATS19 road safety data

View as a table
YearCollisionsCasualties
202522
202434
202300
202222
202123
202034
201924
201858
201700
201612
201523
2014611
201311
201223
201100
201023
200911
2008711
2007720
2006910
20051114
200422
2003914
200234
200123
200047
1999811
1998710
199744
1996810
199568
199445
1993611
199255
199122
19901318
198946
198867
1987610
1986810
1985512
198433
1983911
1982811
198123
198067
197958

When crashes happen on the B4248

Friday has the most collisions on the B4248 (42), and 3pm to 6pm is the busiest time of day (40).

Collisions by day of the week

  • Monday20 (9.4%)
  • Tuesday29 (14%)
  • Wednesday21 (9.9%)
  • Thursday38 (18%)
  • Friday42 (20%)
  • Saturday38 (18%)
  • Sunday25 (12%)

Collisions by time of day

  • Midnight to 3am7 (3.3%)
  • 3am to 6am3 (1.4%)
  • 6am to 9am27 (13%)
  • 9am to noon32 (15%)
  • Noon to 3pm38 (18%)
  • 3pm to 6pm40 (19%)
  • 6pm to 9pm39 (18%)
  • 9pm to midnight27 (13%)

Collisions by month

  • January10 (4.7%)
  • February22 (10%)
  • March16 (7.5%)
  • April14 (6.6%)
  • May16 (7.5%)
  • June21 (9.9%)
  • July16 (7.5%)
  • August16 (7.5%)
  • September23 (11%)
  • October21 (9.9%)
  • November25 (12%)
  • December13 (6.1%)

Light conditions at the time

  • Daylight148 (69%)
  • Dark, no street lighting35 (16%)
  • Dark, street lights lit27 (13%)
  • Dark, street lights unlit2 (0.9%)
  • Dark, lighting unknown1 (0.5%)

Source: Department for Transport, STATS19 road safety data

Road and weather conditions in B4248 crashes

On the B4248, 45% of collisions happened where the speed limit was 30 mph and 51% on a dry road surface.

Speed limit at the scene

  • 20 mph2 (0.9%)
  • 30 mph95 (45%)
  • 40 mph32 (15%)
  • 50 mph3 (1.4%)
  • 60 mph80 (38%)
  • 70 mph1 (0.5%)

Weather at the time

  • Fine, no high winds128 (60%)
  • Raining, no high winds32 (15%)
  • Raining with high winds12 (5.6%)
  • Fog or mist10 (4.7%)
  • Other28 (13%)
  • Not recorded3 (1.4%)

Road surface

  • Dry109 (51%)
  • Wet or damp80 (38%)
  • Frost or ice16 (7.5%)
  • Snow7 (3.3%)
  • Flood over 3cm deep1 (0.5%)

Type of road

  • Single carriageway190 (89%)
  • One way street or slip road14 (6.6%)
  • Roundabout8 (3.8%)
  • Dual carriageway1 (0.5%)

Source: Department for Transport, STATS19 road safety data

People hurt and vehicles involved in B4248 crashes

Car occupants make up 70% of the people killed or injured on the B4248, followed by motorcyclists (10%).

Casualties by road user

  • Car occupant215 (70%)
  • Motorcyclist31 (10%)
  • Pedestrian21 (6.8%)
  • Van occupant17 (5.5%)
  • Bus or coach occupant10 (3.2%)
  • Cyclist5 (1.6%)
  • Goods vehicle occupant (over 3.5 tonnes)5 (1.6%)
  • Other4 (1.3%)

Vehicles involved

  • Car277 (76%)
  • Motorcycle31 (8.5%)
  • Van or goods vehicle up to 3.5 tonnes24 (6.6%)
  • Goods vehicle over 3.5 tonnes12 (3.3%)
  • Bus or coach7 (1.9%)
  • Pedal cycle5 (1.4%)
  • Other vehicle3 (0.8%)
  • Other7 (1.9%)

Casualties by age

  • 0 to 55 (1.6%)
  • 6 to 104 (1.3%)
  • 11 to 1510 (3.2%)
  • 16 to 2063 (20%)
  • 21 to 2542 (14%)
  • 26 to 3575 (24%)
  • 36 to 4537 (12%)
  • 46 to 5530 (9.7%)
  • 56 to 6524 (7.8%)
  • 66 to 7515 (4.9%)
  • Over 752 (0.6%)
  • Not recorded1 (0.3%)

Drivers, passengers and pedestrians

  • Driver or rider193 (63%)
  • Passenger94 (31%)
  • Pedestrian21 (6.8%)

Source: Department for Transport, STATS19 road safety data

Map of recent crashes on the B4248

Map of the 25 most recent crashes on the B4248

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

  • 25 crashes
  • Fatal
  • Serious
  • Slight

B4248 crashes by council area

Collisions on the B4248 were recorded in 3 council areas. Blaenau Gwent has the most, with 99, followed by Torfaen (79) and Monmouthshire (32).

Collisions on the B4248 in each area, 1979 to 2025
RankAreaCollisionsCasualtiesFatalSerious
1stBlaenau Gwent9913518
2ndTorfaen79131321
3rdMonmouthshire323938

B4248 crashes by town

Of the 213 collisions on the B4248, 81 were in the built-up area of Brynmawr.

Recent crashes on the B4248

These are the 25 most recent collisions on the B4248, from 8 July 2014 to 6 December 2025.

Severity