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CrashStats

B4405 accidents: crash map and statistics

Police recorded 104 collisions on the B4405 from 1979 to 2024, with 171 casualties. Of those crashes, 2 were fatal and 27 serious, and 2 people were killed.

No collisions were recorded on the B4405 in 2025, after 1 in 2024.

Collisions since 1979
104
3,995th highest of 4,923 roads
Casualties
171
1.64 per collision
Fatal collisions
2
2 people killed
Serious collisions
27
31 seriously injured
Collisions in 2025
0
1 in 2024
Casualties in 2025
0
1 in 2024

Crash severity on the B4405

On the B4405, 1.9% of collisions were fatal and 26% serious, against 1.6% and 18% across Great Britain.

Collisions by severity, 1979 to 2024

  • Fatal21.9%
  • Serious2726%
  • Slight7572%

Where the B4405 ranks among 4,923 roads

Most collisions
3,995th
Most casualties
3,799th
Most fatal collisions
3,485th
Most serious collisions
3,732nd

B4405 accidents by year

Collisions on the B4405 peaked at 6 in 2001; none were recorded in 2025.

Collisions and casualties on the B4405, 1979 to 2025

  • Collisions
  • Collisions in 2025
  • Casualties

Source: Department for Transport, STATS19 road safety data

View as a table
YearCollisionsCasualties
202500
202411
202311
202211
202123
202011
201911
201823
201725
201612
201511
201422
201312
201211
201100
201059
2009311
200834
200711
200648
200523
200423
200323
200234
2001611
200045
199900
199847
199733
199645
199500
199458
199300
199238
199133
199044
198911
198846
198711
198600
198525
198434
198315
198225
198159
198034
197947

When crashes happen on the B4405

Saturday has the most collisions on the B4405 (21), and 3pm to 6pm is the busiest time of day (27).

Collisions by day of the week

  • Monday11 (11%)
  • Tuesday14 (13%)
  • Wednesday10 (9.6%)
  • Thursday15 (14%)
  • Friday14 (13%)
  • Saturday21 (20%)
  • Sunday19 (18%)

Collisions by time of day

  • Midnight to 3am1 (1%)
  • 3am to 6am4 (3.8%)
  • 6am to 9am7 (6.7%)
  • 9am to noon18 (17%)
  • Noon to 3pm18 (17%)
  • 3pm to 6pm27 (26%)
  • 6pm to 9pm15 (14%)
  • 9pm to midnight14 (13%)

Collisions by month

  • January5 (4.8%)
  • February3 (2.9%)
  • March6 (5.8%)
  • April9 (8.7%)
  • May10 (9.6%)
  • June9 (8.7%)
  • July12 (12%)
  • August15 (14%)
  • September15 (14%)
  • October9 (8.7%)
  • November6 (5.8%)
  • December5 (4.8%)

Light conditions at the time

  • Daylight80 (77%)
  • Dark, no street lighting20 (19%)
  • Dark, street lights lit3 (2.9%)
  • Dark, street lights unlit1 (1%)

Source: Department for Transport, STATS19 road safety data

Road and weather conditions in B4405 crashes

On the B4405, 82% of collisions happened where the speed limit was 60 mph and 68% on a dry road surface.

Speed limit at the scene

  • 30 mph12 (12%)
  • 40 mph1 (1%)
  • 60 mph85 (82%)
  • 70 mph6 (5.8%)

Weather at the time

  • Fine, no high winds82 (79%)
  • Raining, no high winds10 (9.6%)
  • Raining with high winds3 (2.9%)
  • Fine with high winds2 (1.9%)
  • Other6 (5.8%)
  • Not recorded1 (1%)

Road surface

  • Dry71 (68%)
  • Wet or damp29 (28%)
  • Frost or ice3 (2.9%)
  • Flood over 3cm deep1 (1%)

Type of road

  • Single carriageway103 (99%)
  • Dual carriageway1 (1%)

Source: Department for Transport, STATS19 road safety data

People hurt and vehicles involved in B4405 crashes

Car occupants make up 70% of the people killed or injured on the B4405, followed by motorcyclists (20%).

Casualties by road user

  • Car occupant119 (70%)
  • Motorcyclist35 (20%)
  • Bus or coach occupant5 (2.9%)
  • Goods vehicle occupant (over 3.5 tonnes)4 (2.3%)
  • Pedestrian3 (1.8%)
  • Cyclist2 (1.2%)
  • Goods vehicle occupant (weight unknown)2 (1.2%)
  • Van occupant1 (0.6%)

Vehicles involved

  • Car109 (66%)
  • Motorcycle31 (19%)
  • Goods vehicle over 3.5 tonnes12 (7.3%)
  • Bus or coach4 (2.4%)
  • Goods vehicle, weight unknown2 (1.2%)
  • Other vehicle2 (1.2%)
  • Pedal cycle2 (1.2%)
  • Van or goods vehicle up to 3.5 tonnes2 (1.2%)

Casualties by age

  • 0 to 54 (2.3%)
  • 6 to 101 (0.6%)
  • 11 to 153 (1.8%)
  • 16 to 2056 (33%)
  • 21 to 2524 (14%)
  • 26 to 3522 (13%)
  • 36 to 4515 (8.8%)
  • 46 to 5517 (9.9%)
  • 56 to 6513 (7.6%)
  • 66 to 757 (4.1%)
  • Over 759 (5.3%)

Drivers, passengers and pedestrians

  • Driver or rider96 (56%)
  • Passenger72 (42%)
  • Pedestrian3 (1.8%)

Source: Department for Transport, STATS19 road safety data

Map of recent crashes on the B4405

Map of the 24 most recent crashes on the B4405

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

  • 24 crashes
  • Fatal
  • Serious
  • Slight

B4405 crashes by council area

Of the 104 collisions on the B4405, 101 were in Gwynedd.

Collisions on the B4405 in each area, 1979 to 2024
RankAreaCollisionsCasualtiesFatalSerious
1stGwynedd101160227

Recent crashes on the B4405

These are the 25 most recent collisions on the B4405, from 22 February 2009 to 3 March 2024.

Severity