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CrashStats

B5111 accidents: crash map and statistics

Police recorded 274 collisions on the B5111 from 1979 to 2024, with 431 casualties. Of those crashes, 12 were fatal and 59 serious, and 12 people were killed.

No collisions were recorded on the B5111 in 2025, after 2 in 2024.

Collisions since 1979
274
2,826th highest of 4,923 roads
Casualties
431
1.57 per collision
Fatal collisions
12
12 people killed
Serious collisions
59
78 seriously injured
Collisions in 2025
0
2 in 2024
Casualties in 2025
0
2 in 2024

Crash severity on the B5111

On the B5111, 4.4% of collisions were fatal and 22% serious, against 1.6% and 18% across Great Britain.

Collisions by severity, 1979 to 2024

  • Fatal124.4%
  • Serious5922%
  • Slight20374%

Where the B5111 ranks among 4,923 roads

Most collisions
2,826th
Most casualties
2,619th
Most fatal collisions
1,505th
Most serious collisions
2,723rd

B5111 accidents by year

Collisions on the B5111 peaked at 11 in 2008; none were recorded in 2025.

Collisions and casualties on the B5111, 1979 to 2025

  • Collisions
  • Collisions in 2025
  • Casualties

Source: Department for Transport, STATS19 road safety data

View as a table
YearCollisionsCasualties
202500
202422
202358
202255
202134
202033
201912
201847
201737
201636
201558
2014610
2013811
201267
2011915
201069
2009911
20081112
200777
200600
2005717
200467
2003813
2002610
200157
200056
1999929
1998611
1997814
1996814
199524
199459
199346
1992613
199168
1990716
198989
1988817
198758
1986914
1985813
198422
198366
198277
1981912
19801013
1979812

When crashes happen on the B5111

Thursday has the most collisions on the B5111 (48), and 3pm to 6pm is the busiest time of day (63).

Collisions by day of the week

  • Monday32 (12%)
  • Tuesday44 (16%)
  • Wednesday37 (14%)
  • Thursday48 (18%)
  • Friday44 (16%)
  • Saturday40 (15%)
  • Sunday29 (11%)

Collisions by time of day

  • Midnight to 3am10 (3.6%)
  • 3am to 6am6 (2.2%)
  • 6am to 9am39 (14%)
  • 9am to noon41 (15%)
  • Noon to 3pm40 (15%)
  • 3pm to 6pm63 (23%)
  • 6pm to 9pm39 (14%)
  • 9pm to midnight36 (13%)

Collisions by month

  • January19 (6.9%)
  • February31 (11%)
  • March27 (9.9%)
  • April23 (8.4%)
  • May20 (7.3%)
  • June18 (6.6%)
  • July22 (8%)
  • August25 (9.1%)
  • September15 (5.5%)
  • October21 (7.7%)
  • November23 (8.4%)
  • December30 (11%)

Light conditions at the time

  • Daylight184 (67%)
  • Dark, no street lighting66 (24%)
  • Dark, street lights lit21 (7.7%)
  • Dark, lighting unknown2 (0.7%)
  • Not recorded1 (0.4%)

Source: Department for Transport, STATS19 road safety data

Road and weather conditions in B5111 crashes

On the B5111, 68% of collisions happened where the speed limit was 60 mph and 49% on a dry road surface.

Speed limit at the scene

  • 30 mph63 (23%)
  • 40 mph11 (4%)
  • 50 mph2 (0.7%)
  • 60 mph185 (68%)
  • 70 mph13 (4.7%)

Weather at the time

  • Fine, no high winds179 (65%)
  • Raining, no high winds50 (18%)
  • Raining with high winds20 (7.3%)
  • Fine with high winds8 (2.9%)
  • Other15 (5.5%)
  • Not recorded2 (0.7%)

Road surface

  • Dry133 (49%)
  • Wet or damp122 (45%)
  • Frost or ice14 (5.1%)
  • Flood over 3cm deep3 (1.1%)
  • Snow2 (0.7%)

Type of road

  • Single carriageway259 (95%)
  • One way street or slip road7 (2.6%)
  • Dual carriageway4 (1.5%)
  • Roundabout4 (1.5%)

Source: Department for Transport, STATS19 road safety data

People hurt and vehicles involved in B5111 crashes

Car occupants make up 80% of the people killed or injured on the B5111, followed by motorcyclists (5.3%).

Casualties by road user

  • Car occupant343 (80%)
  • Motorcyclist23 (5.3%)
  • Bus or coach occupant18 (4.2%)
  • Pedestrian18 (4.2%)
  • Cyclist9 (2.1%)
  • Van occupant7 (1.6%)
  • Goods vehicle occupant (over 3.5 tonnes)4 (0.9%)
  • Other9 (2.1%)

Vehicles involved

  • Car349 (82%)
  • Motorcycle22 (5.2%)
  • Van or goods vehicle up to 3.5 tonnes16 (3.8%)
  • Goods vehicle over 3.5 tonnes12 (2.8%)
  • Pedal cycle10 (2.4%)
  • Minibus6 (1.4%)
  • Agricultural vehicle3 (0.7%)
  • Other7 (1.6%)

Casualties by age

  • 0 to 511 (2.6%)
  • 6 to 107 (1.6%)
  • 11 to 1529 (6.7%)
  • 16 to 20117 (27%)
  • 21 to 2568 (16%)
  • 26 to 3575 (17%)
  • 36 to 4543 (10%)
  • 46 to 5525 (5.8%)
  • 56 to 6530 (7%)
  • 66 to 7512 (2.8%)
  • Over 7513 (3%)
  • Not recorded1 (0.2%)

Drivers, passengers and pedestrians

  • Driver or rider262 (61%)
  • Passenger151 (35%)
  • Pedestrian18 (4.2%)

Source: Department for Transport, STATS19 road safety data

Map of recent crashes on the B5111

Map of the 25 most recent crashes on the B5111

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

  • 25 crashes
  • Fatal
  • Serious
  • Slight

B5111 crashes by council area

Of the 274 collisions on the B5111, 271 were in Isle of Anglesey.

Collisions on the B5111 in each area, 1979 to 2024
RankAreaCollisionsCasualtiesFatalSerious
1stIsle of Anglesey2714271258

B5111 crashes by town

Collisions on the B5111 were recorded in 2 towns and built-up areas, led by Llangefni (14) and Amlwch (10).

Recent crashes on the B5111

These are the 25 most recent collisions on the B5111, from 12 July 2017 to 28 December 2024.

Severity