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CrashStats

B4246 accidents: crash map and statistics

Police recorded 508 collisions on the B4246 from 1979 to 2025, with 706 casualties. Of those crashes, 15 were fatal and 119 serious, and 16 people were killed.

In 2025 there were 6 collisions on the B4246, down 57% from 14 in 2024, with 6 casualties.

Collisions since 1979
508
1,943rd highest of 4,923 roads
Casualties
706
1.39 per collision
Fatal collisions
15
16 people killed
Serious collisions
119
140 seriously injured
Collisions in 2025
6
Down 57% on 2024
Casualties in 2025
6
Down 60% on 2024

Crash severity on the B4246

On the B4246, 3% of collisions were fatal and 23% serious, against 1.6% and 18% across Great Britain.

Collisions by severity, 1979 to 2025

  • Fatal153%
  • Serious11923%
  • Slight37474%

Where the B4246 ranks among 4,923 roads

Most collisions
1,943rd
Most casualties
1,905th
Most fatal collisions
1,258th
Most serious collisions
1,660th

B4246 accidents by year

Collisions on the B4246 peaked at 25 in 1982 and were down to 6 in 2025.

Collisions and casualties on the B4246, 1979 to 2025

  • Collisions
  • Collisions in 2025: 6
  • Casualties

Source: Department for Transport, STATS19 road safety data

View as a table
YearCollisionsCasualties
202566
20241415
202378
20221112
202133
202000
2019912
201845
201713
201657
201533
20141722
2013714
201256
2011911
201066
200935
200857
200736
200647
200547
20041624
20031014
2002810
20011219
20001216
19991126
19981620
19972033
19961823
19951525
19941019
19931415
19921416
19911213
19901825
19891932
19881520
19871519
19861625
19851319
19841516
19831726
19822534
19811014
19801620
19791518

When crashes happen on the B4246

Friday has the most collisions on the B4246 (77), and 3pm to 6pm is the busiest time of day (132).

Collisions by day of the week

  • Monday68 (13%)
  • Tuesday70 (14%)
  • Wednesday67 (13%)
  • Thursday76 (15%)
  • Friday77 (15%)
  • Saturday76 (15%)
  • Sunday74 (15%)

Collisions by time of day

  • Midnight to 3am18 (3.5%)
  • 3am to 6am7 (1.4%)
  • 6am to 9am45 (8.9%)
  • 9am to noon56 (11%)
  • Noon to 3pm90 (18%)
  • 3pm to 6pm132 (26%)
  • 6pm to 9pm102 (20%)
  • 9pm to midnight58 (11%)

Collisions by month

  • January33 (6.5%)
  • February44 (8.7%)
  • March43 (8.5%)
  • April35 (6.9%)
  • May49 (9.6%)
  • June48 (9.4%)
  • July45 (8.9%)
  • August59 (12%)
  • September44 (8.7%)
  • October41 (8.1%)
  • November32 (6.3%)
  • December35 (6.9%)

Light conditions at the time

  • Daylight364 (72%)
  • Dark, no street lighting66 (13%)
  • Dark, street lights lit65 (13%)
  • Dark, lighting unknown8 (1.6%)
  • Dark, street lights unlit5 (1%)

Source: Department for Transport, STATS19 road safety data

Road and weather conditions in B4246 crashes

On the B4246, 65% of collisions happened where the speed limit was 30 mph and 61% on a dry road surface.

Speed limit at the scene

  • 20 mph6 (1.2%)
  • 30 mph331 (65%)
  • 40 mph19 (3.7%)
  • 50 mph1 (0.2%)
  • 60 mph150 (30%)
  • 70 mph1 (0.2%)

Weather at the time

  • Fine, no high winds365 (72%)
  • Raining, no high winds77 (15%)
  • Raining with high winds13 (2.6%)
  • Fine with high winds9 (1.8%)
  • Other39 (7.7%)
  • Not recorded5 (1%)

Road surface

  • Dry308 (61%)
  • Wet or damp168 (33%)
  • Frost or ice21 (4.1%)
  • Snow10 (2%)
  • Oil or diesel1 (0.2%)

Type of road

  • Single carriageway501 (99%)
  • Roundabout3 (0.6%)
  • Dual carriageway2 (0.4%)
  • One way street or slip road1 (0.2%)
  • Not recorded1 (0.2%)

Source: Department for Transport, STATS19 road safety data

People hurt and vehicles involved in B4246 crashes

Car occupants make up 65% of the people killed or injured on the B4246, followed by pedestrians (13%).

Casualties by road user

  • Car occupant459 (65%)
  • Pedestrian92 (13%)
  • Motorcyclist90 (13%)
  • Cyclist26 (3.7%)
  • Bus or coach occupant11 (1.6%)
  • Other vehicle occupant8 (1.1%)
  • Van occupant7 (1%)
  • Other13 (1.8%)

Vehicles involved

  • Car615 (77%)
  • Motorcycle92 (11%)
  • Pedal cycle26 (3.2%)
  • Bus or coach19 (2.4%)
  • Van or goods vehicle up to 3.5 tonnes19 (2.4%)
  • Other vehicle12 (1.5%)
  • Goods vehicle over 3.5 tonnes10 (1.2%)
  • Other10 (1.2%)

Casualties by age

  • 0 to 514 (2%)
  • 6 to 1043 (6.1%)
  • 11 to 1543 (6.1%)
  • 16 to 20175 (25%)
  • 21 to 2591 (13%)
  • 26 to 35111 (16%)
  • 36 to 4572 (10%)
  • 46 to 5571 (10%)
  • 56 to 6548 (6.8%)
  • 66 to 7523 (3.3%)
  • Over 7512 (1.7%)
  • Not recorded3 (0.4%)

Drivers, passengers and pedestrians

  • Driver or rider417 (59%)
  • Passenger197 (28%)
  • Pedestrian92 (13%)

Source: Department for Transport, STATS19 road safety data

Map of recent crashes on the B4246

Map of the 25 most recent crashes on the B4246

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

  • 25 crashes
  • Fatal
  • Serious
  • Slight

B4246 crashes by council area

Collisions on the B4246 were recorded in 2 council areas. Torfaen has the most, with 325, followed by Monmouthshire (182).

Collisions on the B4246 in each area, 1979 to 2025
RankAreaCollisionsCasualtiesFatalSerious
1stTorfaen325444977
2ndMonmouthshire182261641

B4246 crashes by town

Collisions on the B4246 were recorded in 3 towns and built-up areas, led by Abersychan (97) and Pontypool (47).

Recent crashes on the B4246

These are the 25 most recent collisions on the B4246, from 21 August 2023 to 20 December 2025.

Severity