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CrashStats

A303 accidents: crash map and statistics

Police recorded 7,908 collisions on the A303 from 1979 to 2025, with 13,026 casualties. Of those crashes, 391 were fatal and 1,750 serious, and 458 people were killed.

In 2025 there were 121 collisions on the A303, up 12% from 108 in 2024, with 193 casualties.

Live A303 closures, incidents and roadworks are checked every 5 minutes.

Collisions since 1979
7,908
111th highest of 4,923 roads
Casualties
13,026
1.65 per collision
Fatal collisions
391
458 people killed
Serious collisions
1,750
2,453 seriously injured
Collisions in 2025
121
Up 12% on 2024
Casualties in 2025
193
Up 3% on 2024

Crash severity on the A303

On the A303, 4.9% of collisions were fatal and 22% serious, against 1.6% and 18% across Great Britain.

Collisions by severity, 1979 to 2025

  • Fatal3914.9%
  • Serious1,75022%
  • Slight5,76773%

Where the A303 ranks among 4,923 roads

Most collisions
111th
Most casualties
90th
Most fatal collisions
39th
Most serious collisions
85th

A303 accidents by year

Collisions on the A303 peaked at 249 in 1986 and were down to 121 in 2025.

Collisions and casualties on the A303, 1979 to 2025

  • Collisions
  • Collisions in 2025
  • Casualties

Source: Department for Transport, STATS19 road safety data

View as a table
YearCollisionsCasualties
2025121193
2024108188
2023107162
2022118172
202199133
202081120
2019115203
2018103146
2017106173
2016131205
2015151245
2014138220
2013119196
2012110165
2011129197
2010137213
2009136229
2008168271
2007185288
2006180285
2005183285
2004217373
2003188285
2002215316
2001200353
2000199322
1999203330
1998186317
1997209333
1996173288
1995176311
1994176297
1993208360
1992170302
1991178311
1990225376
1989208348
1988217383
1987220373
1986249431
1985211366
1984191338
1983210325
1982198349
1981171310
1980200342
1979185298

When crashes happen on the A303

Friday has the most collisions on the A303 (1,355), and 3pm to 6pm is the busiest time of day (1,898).

Collisions by day of the week

  • Monday1,152 (15%)
  • Tuesday981 (12%)
  • Wednesday944 (12%)
  • Thursday991 (13%)
  • Friday1,355 (17%)
  • Saturday1,273 (16%)
  • Sunday1,212 (15%)

Collisions by time of day

  • Midnight to 3am267 (3.4%)
  • 3am to 6am222 (2.8%)
  • 6am to 9am950 (12%)
  • 9am to noon1,316 (17%)
  • Noon to 3pm1,661 (21%)
  • 3pm to 6pm1,898 (24%)
  • 6pm to 9pm1,116 (14%)
  • 9pm to midnight478 (6%)

Collisions by month

  • January525 (6.6%)
  • February500 (6.3%)
  • March532 (6.7%)
  • April602 (7.6%)
  • May631 (8%)
  • June703 (8.9%)
  • July837 (11%)
  • August885 (11%)
  • September708 (9%)
  • October640 (8.1%)
  • November636 (8%)
  • December709 (9%)

Light conditions at the time

  • Daylight5,966 (75%)
  • Dark, no street lighting1,618 (20%)
  • Dark, street lights lit247 (3.1%)
  • Dark, lighting unknown58 (0.7%)
  • Dark, street lights unlit13 (0.2%)
  • Not recorded6 (0.1%)

Source: Department for Transport, STATS19 road safety data

Road and weather conditions in A303 crashes

On the A303, 48% of collisions happened where the speed limit was 60 mph and 65% on a dry road surface.

Speed limit at the scene

  • 20 mph1 (under 0.1%)
  • 30 mph141 (1.8%)
  • 40 mph221 (2.8%)
  • 50 mph350 (4.4%)
  • 60 mph3,812 (48%)
  • 70 mph3,381 (43%)
  • Not recorded2 (under 0.1%)

Weather at the time

  • Fine, no high winds5,902 (75%)
  • Raining, no high winds1,063 (13%)
  • Raining with high winds236 (3%)
  • Fog or mist209 (2.6%)
  • Other420 (5.3%)
  • Not recorded78 (1%)

Road surface

  • Dry5,144 (65%)
  • Wet or damp2,495 (32%)
  • Frost or ice177 (2.2%)
  • Snow42 (0.5%)
  • Other43 (0.5%)
  • Not recorded7 (0.1%)

Type of road

  • Single carriageway3,677 (46%)
  • Dual carriageway3,321 (42%)
  • Roundabout753 (9.5%)
  • One way street or slip road125 (1.6%)
  • Not recorded32 (0.4%)

Source: Department for Transport, STATS19 road safety data

People hurt and vehicles involved in A303 crashes

Car occupants make up 81% of the people killed or injured on the A303, followed by motorcyclists (7.2%).

Casualties by road user

  • Car occupant10,602 (81%)
  • Motorcyclist937 (7.2%)
  • Van occupant513 (3.9%)
  • Goods vehicle occupant (over 3.5 tonnes)369 (2.8%)
  • Pedestrian211 (1.6%)
  • Cyclist150 (1.2%)
  • Minibus occupant97 (0.7%)
  • Other147 (1.1%)

Vehicles involved

  • Car12,430 (78%)
  • Goods vehicle over 3.5 tonnes1,269 (8%)
  • Motorcycle889 (5.6%)
  • Van or goods vehicle up to 3.5 tonnes831 (5.2%)
  • Other vehicle167 (1%)
  • Pedal cycle159 (1%)
  • Other187 (1.2%)
  • Not recorded3 (under 0.1%)

Casualties by age

  • 0 to 5243 (1.9%)
  • 6 to 10314 (2.4%)
  • 11 to 15380 (2.9%)
  • 16 to 201,413 (11%)
  • 21 to 251,616 (12%)
  • 26 to 352,495 (19%)
  • 36 to 451,953 (15%)
  • 46 to 551,701 (13%)
  • 56 to 651,304 (10%)
  • 66 to 75982 (7.5%)
  • Over 75581 (4.5%)
  • Not recorded44 (0.3%)

Drivers, passengers and pedestrians

  • Driver or rider7,895 (61%)
  • Passenger4,920 (38%)
  • Pedestrian211 (1.6%)

Source: Department for Transport, STATS19 road safety data

Map of recent crashes on the A303

Map of the 25 most recent crashes on the A303

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

  • 25 crashes
  • Fatal
  • Serious
  • Slight

A303 crashes by council area

Collisions on the A303 were recorded in 7 council areas. Wiltshire has the most, with 2,888, followed by Somerset (2,767) and Test Valley (1,402).

Collisions on the A303 in each area, 1979 to 2025
RankAreaCollisionsCasualtiesFatalSerious
1stWiltshire2,8885,043156632
2ndSomerset2,7674,468132549
3rdTest Valley1,4022,17970352
4thEast Devon3065231568
5thWinchester2343351265
6thBasingstoke and Deane213324555
7thDorset76129124

A303 crashes by town

Collisions on the A303 were recorded in 6 towns and built-up areas, led by Ilminster (69) and Andover (44).

Recent crashes on the A303

These are the 25 most recent collisions on the A303, from 8 November to 31 December 2025.

Severity