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CrashStats

B4357 accidents: crash map and statistics

Police recorded 39 collisions on the B4357 from 1979 to 2024, with 59 casualties. Of those crashes, 1 was fatal and 10 serious, and 1 person was killed.

No collisions were recorded on the B4357 in 2025, after 1 in 2024.

Collisions since 1979
39
4,762nd highest of 4,923 roads
Casualties
59
1.51 per collision
Fatal collisions
1
1 person killed
Serious collisions
10
15 seriously injured
Collisions in 2025
0
1 in 2024
Casualties in 2025
0
1 in 2024

Crash severity on the B4357

On the B4357, 2.6% of collisions were fatal and 26% serious, against 1.6% and 18% across Great Britain.

Collisions by severity, 1979 to 2024

  • Fatal12.6%
  • Serious1026%
  • Slight2872%

Where the B4357 ranks among 4,923 roads

Most collisions
4,762nd
Most casualties
4,680th
Most fatal collisions
3,933rd
Most serious collisions
4,617th

B4357 accidents by year

Collisions on the B4357 peaked at 5 in 2022; none were recorded in 2025.

Collisions and casualties on the B4357, 1979 to 2025

  • Collisions
  • Collisions in 2025
  • Casualties

Source: Department for Transport, STATS19 road safety data

View as a table
YearCollisionsCasualties
202500
202411
202335
202258
202111
202011
201911
201822
201700
201611
201511
201400
201300
201224
201100
201011
200923
200811
200700
200600
200500
200423
200323
200211
200100
200000
199911
199812
199700
199600
199512
199400
199312
199200
199126
199011
198900
198800
198711
198600
198500
198411
198300
198212
198100
198012
197912

When crashes happen on the B4357

Sunday has the most collisions on the B4357 (14), and 3pm to 6pm is the busiest time of day (12).

Collisions by day of the week

  • Monday1 (2.6%)
  • Tuesday4 (10%)
  • Wednesday7 (18%)
  • Thursday5 (13%)
  • Friday4 (10%)
  • Saturday4 (10%)
  • Sunday14 (36%)

Collisions by time of day

  • Midnight to 3am2 (5.1%)
  • 3am to 6am0 (0%)
  • 6am to 9am6 (15%)
  • 9am to noon5 (13%)
  • Noon to 3pm5 (13%)
  • 3pm to 6pm12 (31%)
  • 6pm to 9pm3 (7.7%)
  • 9pm to midnight6 (15%)

Collisions by month

  • January3 (7.7%)
  • February3 (7.7%)
  • March4 (10%)
  • April4 (10%)
  • June2 (5.1%)
  • July2 (5.1%)
  • August3 (7.7%)
  • September4 (10%)
  • October6 (15%)
  • November4 (10%)
  • December4 (10%)

Light conditions at the time

  • Daylight27 (69%)
  • Dark, no street lighting11 (28%)
  • Dark, street lights unlit1 (2.6%)

Source: Department for Transport, STATS19 road safety data

Road and weather conditions in B4357 crashes

On the B4357, 90% of collisions happened where the speed limit was 60 mph and 46% on a wet or damp road surface.

Speed limit at the scene

  • 30 mph4 (10%)
  • 60 mph35 (90%)

Weather at the time

  • Fine, no high winds25 (64%)
  • Raining, no high winds6 (15%)
  • Raining with high winds3 (7.7%)
  • Snowing, no high winds1 (2.6%)
  • Other2 (5.1%)
  • Not recorded2 (5.1%)

Road surface

  • Wet or damp18 (46%)
  • Dry17 (44%)
  • Frost or ice3 (7.7%)
  • Snow1 (2.6%)

Type of road

  • Single carriageway39 (100%)

Source: Department for Transport, STATS19 road safety data

People hurt and vehicles involved in B4357 crashes

Car occupants make up 75% of the people killed or injured on the B4357, followed by van occupants (14%).

Casualties by road user

  • Car occupant44 (75%)
  • Van occupant8 (14%)
  • Motorcyclist4 (6.8%)
  • Other vehicle occupant2 (3.4%)
  • Cyclist1 (1.7%)

Vehicles involved

  • Car50 (81%)
  • Van or goods vehicle up to 3.5 tonnes7 (11%)
  • Motorcycle3 (4.8%)
  • Other vehicle1 (1.6%)
  • Pedal cycle1 (1.6%)

Casualties by age

  • 0 to 51 (1.7%)
  • 16 to 2013 (22%)
  • 21 to 2510 (17%)
  • 26 to 3513 (22%)
  • 36 to 458 (14%)
  • 46 to 556 (10%)
  • 56 to 654 (6.8%)
  • 66 to 751 (1.7%)
  • Over 752 (3.4%)
  • Not recorded1 (1.7%)

Drivers, passengers and pedestrians

  • Driver or rider44 (75%)
  • Passenger15 (25%)

Source: Department for Transport, STATS19 road safety data

Map of recent crashes on the B4357

Map of the 25 most recent crashes on the B4357

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

  • 25 crashes
  • Fatal
  • Serious
  • Slight

B4357 crashes by council area

Of the 39 collisions on the B4357, 38 were in Powys.

Collisions on the B4357 in each area, 1979 to 2024
RankAreaCollisionsCasualtiesFatalSerious
1stPowys385519

Recent crashes on the B4357

These are the 25 most recent collisions on the B4357, from 23 October 2003 to 1 December 2024.

Severity