Skip to main content
CrashStats

B3353 accidents: crash map and statistics

Police recorded 356 collisions on the B3353 from 1979 to 2025, with 452 casualties. Of those crashes, 5 were fatal and 77 serious, and 5 people were killed.

In 2025 there were 2 collisions on the B3353, down 50% from 4 in 2024, with 2 casualties.

Collisions since 1979
356
2,461st highest of 4,923 roads
Casualties
452
1.27 per collision
Fatal collisions
5
5 people killed
Serious collisions
77
82 seriously injured
Collisions in 2025
2
Down 50% on 2024
Casualties in 2025
2
Down 60% on 2024

Crash severity on the B3353

On the B3353, 1.4% of collisions were fatal and 22% serious, against 1.6% and 18% across Great Britain.

Collisions by severity, 1979 to 2025

  • Fatal51.4%
  • Serious7722%
  • Slight27477%

Where the B3353 ranks among 4,923 roads

Most collisions
2,461st
Most casualties
2,549th
Most fatal collisions
2,545th
Most serious collisions
2,343rd

B3353 accidents by year

Collisions on the B3353 peaked at 24 in 1984 and were down to 2 in 2025.

Collisions and casualties on the B3353, 1979 to 2025

  • Collisions
  • Collisions in 2025: 2
  • Casualties

Source: Department for Transport, STATS19 road safety data

View as a table
YearCollisionsCasualties
202522
202445
202334
202233
202145
202034
201933
201844
201722
201612
201566
201433
201333
201223
201144
201011
200958
200845
200746
200633
2005912
200468
2003810
200257
200144
200069
1999810
199869
1997610
1996911
1995711
1994810
199356
1992710
199189
19901116
19891516
19881620
19871314
19861521
19851724
19842431
19831725
19821722
19811923
19801011
19791617

When crashes happen on the B3353

Friday has the most collisions on the B3353 (72), and 3pm to 6pm is the busiest time of day (86).

Collisions by day of the week

  • Monday55 (15%)
  • Tuesday58 (16%)
  • Wednesday46 (13%)
  • Thursday47 (13%)
  • Friday72 (20%)
  • Saturday51 (14%)
  • Sunday27 (7.6%)

Collisions by time of day

  • Midnight to 3am11 (3.1%)
  • 3am to 6am9 (2.5%)
  • 6am to 9am45 (13%)
  • 9am to noon42 (12%)
  • Noon to 3pm63 (18%)
  • 3pm to 6pm86 (24%)
  • 6pm to 9pm59 (17%)
  • 9pm to midnight41 (12%)

Collisions by month

  • January24 (6.7%)
  • February25 (7%)
  • March36 (10%)
  • April31 (8.7%)
  • May38 (11%)
  • June25 (7%)
  • July31 (8.7%)
  • August21 (5.9%)
  • September14 (3.9%)
  • October40 (11%)
  • November32 (9%)
  • December39 (11%)

Light conditions at the time

  • Daylight237 (67%)
  • Dark, street lights lit85 (24%)
  • Dark, no street lighting30 (8.4%)
  • Dark, street lights unlit3 (0.8%)
  • Dark, lighting unknown1 (0.3%)

Source: Department for Transport, STATS19 road safety data

Road and weather conditions in B3353 crashes

On the B3353, 58% of collisions happened where the speed limit was 30 mph and 55% on a dry road surface.

Speed limit at the scene

  • 30 mph208 (58%)
  • 40 mph64 (18%)
  • 50 mph6 (1.7%)
  • 60 mph73 (21%)
  • 70 mph5 (1.4%)

Weather at the time

  • Fine, no high winds260 (73%)
  • Raining, no high winds65 (18%)
  • Fog or mist9 (2.5%)
  • Raining with high winds9 (2.5%)
  • Other10 (2.8%)
  • Not recorded3 (0.8%)

Road surface

  • Dry196 (55%)
  • Wet or damp148 (42%)
  • Frost or ice11 (3.1%)
  • Snow1 (0.3%)

Type of road

  • Single carriageway331 (93%)
  • Roundabout25 (7%)

Source: Department for Transport, STATS19 road safety data

People hurt and vehicles involved in B3353 crashes

Car occupants make up 53% of the people killed or injured on the B3353, followed by motorcyclists (19%).

Casualties by road user

  • Car occupant238 (53%)
  • Motorcyclist88 (19%)
  • Pedestrian53 (12%)
  • Cyclist50 (11%)
  • Van occupant19 (4.2%)
  • Goods vehicle occupant (over 3.5 tonnes)2 (0.4%)
  • Bus or coach occupant1 (0.2%)
  • Minibus occupant1 (0.2%)

Vehicles involved

  • Car394 (65%)
  • Motorcycle89 (15%)
  • Pedal cycle50 (8.2%)
  • Van or goods vehicle up to 3.5 tonnes40 (6.6%)
  • Goods vehicle over 3.5 tonnes14 (2.3%)
  • Bus or coach9 (1.5%)
  • Other vehicle5 (0.8%)
  • Other7 (1.2%)

Casualties by age

  • 0 to 57 (1.5%)
  • 6 to 109 (2%)
  • 11 to 1534 (7.5%)
  • 16 to 20111 (25%)
  • 21 to 2577 (17%)
  • 26 to 3552 (12%)
  • 36 to 4559 (13%)
  • 46 to 5542 (9.3%)
  • 56 to 6527 (6%)
  • 66 to 7520 (4.4%)
  • Over 7514 (3.1%)

Drivers, passengers and pedestrians

  • Driver or rider303 (67%)
  • Passenger96 (21%)
  • Pedestrian53 (12%)

Source: Department for Transport, STATS19 road safety data

Map of recent crashes on the B3353

Map of the 25 most recent crashes on the B3353

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

  • 25 crashes
  • Serious
  • Slight

B3353 crashes by council area

Of the 356 collisions on the B3353, 355 were in Wiltshire.

Collisions on the B3353 in each area, 1979 to 2025
RankAreaCollisionsCasualtiesFatalSerious
1stWiltshire355450577

B3353 crashes by town

Of the 356 collisions on the B3353, 193 were in the built-up area of Corsham.

Recent crashes on the B3353

These are the 25 most recent collisions on the B3353, from 19 May 2018 to 11 May 2025.

Severity