Skip to main content
CrashStats

A146 accidents: crash map and statistics

Police recorded 2,746 collisions on the A146 from 1979 to 2025, with 4,200 casualties. Of those crashes, 77 were fatal and 634 serious, and 94 people were killed.

In 2025 there were 33 collisions on the A146, up 6% from 31 in 2024, with 59 casualties.

Collisions since 1979
2,746
424th highest of 4,923 roads
Casualties
4,200
1.53 per collision
Fatal collisions
77
94 people killed
Serious collisions
634
862 seriously injured
Collisions in 2025
33
Up 6% on 2024
Casualties in 2025
59
Up 20% on 2024

Crash severity on the A146

On the A146, 2.8% of collisions were fatal and 23% serious, against 1.6% and 18% across Great Britain.

Collisions by severity, 1979 to 2025

  • Fatal772.8%
  • Serious63423%
  • Slight2,03574%

Where the A146 ranks among 4,923 roads

Most collisions
424th
Most casualties
364th
Most fatal collisions
276th
Most serious collisions
315th

A146 accidents by year

Collisions on the A146 peaked at 89 in 1996 and were down to 33 in 2025.

Collisions and casualties on the A146, 1979 to 2025

  • Collisions
  • Collisions in 2025
  • Casualties

Source: Department for Transport, STATS19 road safety data

View as a table
YearCollisionsCasualties
20253359
20243149
20233049
20223457
20212635
20202538
20194672
20184163
20172946
20164564
20155190
20145081
20134974
20124258
20113764
20105989
20095989
200865105
200783133
200664108
20055996
200462100
20036893
200277116
20016192
20006283
199969103
19986999
19976388
199689133
199573111
199477113
199384144
199270115
199170117
199075115
198963104
19885886
19876396
19865176
19855887
19845085
19836194
198284115
198176104
198083110
197972102

When crashes happen on the A146

Friday has the most collisions on the A146 (449), and 3pm to 6pm is the busiest time of day (680).

Collisions by day of the week

  • Monday396 (14%)
  • Tuesday370 (13%)
  • Wednesday411 (15%)
  • Thursday419 (15%)
  • Friday449 (16%)
  • Saturday416 (15%)
  • Sunday285 (10%)

Collisions by time of day

  • Midnight to 3am90 (3.3%)
  • 3am to 6am54 (2%)
  • 6am to 9am395 (14%)
  • 9am to noon437 (16%)
  • Noon to 3pm509 (19%)
  • 3pm to 6pm680 (25%)
  • 6pm to 9pm358 (13%)
  • 9pm to midnight223 (8.1%)

Collisions by month

  • January219 (8%)
  • February196 (7.1%)
  • March194 (7.1%)
  • April178 (6.5%)
  • May219 (8%)
  • June224 (8.2%)
  • July256 (9.3%)
  • August254 (9.2%)
  • September228 (8.3%)
  • October280 (10%)
  • November254 (9.2%)
  • December244 (8.9%)

Light conditions at the time

  • Daylight2,003 (73%)
  • Dark, street lights lit376 (14%)
  • Dark, no street lighting332 (12%)
  • Dark, lighting unknown25 (0.9%)
  • Dark, street lights unlit9 (0.3%)
  • Not recorded1 (under 0.1%)

Source: Department for Transport, STATS19 road safety data

Road and weather conditions in A146 crashes

On the A146, 48% of collisions happened where the speed limit was 60 mph and 61% on a dry road surface.

Speed limit at the scene

  • 30 mph794 (29%)
  • 40 mph291 (11%)
  • 50 mph192 (7%)
  • 60 mph1,325 (48%)
  • 70 mph144 (5.2%)

Weather at the time

  • Fine, no high winds2,031 (74%)
  • Raining, no high winds375 (14%)
  • Fine with high winds56 (2%)
  • Raining with high winds54 (2%)
  • Other213 (7.8%)
  • Not recorded17 (0.6%)

Road surface

  • Dry1,686 (61%)
  • Wet or damp966 (35%)
  • Frost or ice73 (2.7%)
  • Snow14 (0.5%)
  • Other6 (0.2%)
  • Not recorded1 (under 0.1%)

Type of road

  • Single carriageway2,347 (85%)
  • Dual carriageway196 (7.1%)
  • Roundabout176 (6.4%)
  • One way street or slip road23 (0.8%)
  • Not recorded4 (0.1%)

Source: Department for Transport, STATS19 road safety data

People hurt and vehicles involved in A146 crashes

Car occupants make up 71% of the people killed or injured on the A146, followed by motorcyclists (14%).

Casualties by road user

  • Car occupant2,972 (71%)
  • Motorcyclist568 (14%)
  • Cyclist206 (4.9%)
  • Pedestrian163 (3.9%)
  • Van occupant107 (2.5%)
  • Goods vehicle occupant (over 3.5 tonnes)66 (1.6%)
  • Bus or coach occupant36 (0.9%)
  • Other82 (2%)

Vehicles involved

  • Car4,137 (74%)
  • Motorcycle577 (10%)
  • Van or goods vehicle up to 3.5 tonnes246 (4.4%)
  • Goods vehicle over 3.5 tonnes245 (4.4%)
  • Pedal cycle212 (3.8%)
  • Other vehicle46 (0.8%)
  • Other104 (1.9%)
  • Not recorded2 (under 0.1%)

Casualties by age

  • 0 to 573 (1.7%)
  • 6 to 10122 (2.9%)
  • 11 to 15171 (4.1%)
  • 16 to 20747 (18%)
  • 21 to 25540 (13%)
  • 26 to 35685 (16%)
  • 36 to 45592 (14%)
  • 46 to 55466 (11%)
  • 56 to 65379 (9%)
  • 66 to 75211 (5%)
  • Over 75159 (3.8%)
  • Not recorded55 (1.3%)

Drivers, passengers and pedestrians

  • Driver or rider2,790 (66%)
  • Passenger1,247 (30%)
  • Pedestrian163 (3.9%)

Source: Department for Transport, STATS19 road safety data

Map of recent crashes on the A146

Map of the 25 most recent crashes on the A146

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

  • 25 crashes
  • Serious
  • Slight

A146 crashes by council area

Collisions on the A146 were recorded in 3 council areas. East Suffolk has the most, with 1,260, followed by South Norfolk (1,257) and Norwich (227).

Collisions on the A146 in each area, 1979 to 2025
RankAreaCollisionsCasualtiesFatalSerious
1stEast Suffolk1,2601,81220266
2ndSouth Norfolk1,2572,08852326
3rdNorwich227298541

A146 crashes by town

Collisions on the A146 were recorded in 5 towns and built-up areas, led by Lowestoft (650) and Norwich (202).

Recent crashes on the A146

These are the 25 most recent collisions on the A146, from 1 May to 29 December 2025.

Severity