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CrashStats

A339 accidents: crash map and statistics

Police recorded 3,748 collisions on the A339 from 1979 to 2025, with 5,285 casualties. Of those crashes, 117 were fatal and 941 serious, and 129 people were killed.

In 2025 there were 34 collisions on the A339, down 31% from 49 in 2024, with 42 casualties.

Collisions since 1979
3,748
299th highest of 4,923 roads
Casualties
5,285
1.41 per collision
Fatal collisions
117
129 people killed
Serious collisions
941
1,208 seriously injured
Collisions in 2025
34
Down 31% on 2024
Casualties in 2025
42
Down 45% on 2024

Crash severity on the A339

On the A339, 3.1% of collisions were fatal and 25% serious, against 1.6% and 18% across Great Britain.

Collisions by severity, 1979 to 2025

  • Fatal1173.1%
  • Serious94125%
  • Slight2,69072%

Where the A339 ranks among 4,923 roads

Most collisions
299th
Most casualties
284th
Most fatal collisions
170th
Most serious collisions
201st

A339 accidents by year

Collisions on the A339 peaked at 135 in 1990 and were down to 34 in 2025.

Collisions and casualties on the A339, 1979 to 2025

  • Collisions
  • Collisions in 2025: 34
  • Casualties

Source: Department for Transport, STATS19 road safety data

View as a table
YearCollisionsCasualties
20253442
20244976
20235073
20224356
20214559
20203851
20194965
20184761
20174984
20166590
20155873
20145672
20135567
20125273
20116989
20106173
20096588
20086697
200782111
20066896
200574105
20047396
200391116
2002103139
2001106138
200096147
1999123181
199885109
199799150
1996103155
199585111
199494153
199387128
1992104150
1991109150
1990135221
1989126163
1988119161
1987102161
1986105146
1985115175
1984108151
198377113
198282120
198181115
198080119
197985116

When crashes happen on the A339

Friday has the most collisions on the A339 (589), and 3pm to 6pm is the busiest time of day (865).

Collisions by day of the week

  • Monday530 (14%)
  • Tuesday567 (15%)
  • Wednesday579 (15%)
  • Thursday588 (16%)
  • Friday589 (16%)
  • Saturday473 (13%)
  • Sunday422 (11%)

Collisions by time of day

  • Midnight to 3am99 (2.6%)
  • 3am to 6am55 (1.5%)
  • 6am to 9am627 (17%)
  • 9am to noon592 (16%)
  • Noon to 3pm618 (16%)
  • 3pm to 6pm865 (23%)
  • 6pm to 9pm564 (15%)
  • 9pm to midnight328 (8.8%)

Collisions by month

  • January282 (7.5%)
  • February285 (7.6%)
  • March269 (7.2%)
  • April289 (7.7%)
  • May287 (7.7%)
  • June310 (8.3%)
  • July321 (8.6%)
  • August337 (9%)
  • September295 (7.9%)
  • October356 (9.5%)
  • November361 (9.6%)
  • December356 (9.5%)

Light conditions at the time

  • Daylight2,773 (74%)
  • Dark, no street lighting499 (13%)
  • Dark, street lights lit423 (11%)
  • Dark, lighting unknown42 (1.1%)
  • Dark, street lights unlit11 (0.3%)

Source: Department for Transport, STATS19 road safety data

Road and weather conditions in A339 crashes

On the A339, 47% of collisions happened where the speed limit was 60 mph and 63% on a dry road surface.

Speed limit at the scene

  • 20 mph2 (0.1%)
  • 30 mph556 (15%)
  • 40 mph375 (10%)
  • 50 mph450 (12%)
  • 60 mph1,748 (47%)
  • 70 mph617 (16%)

Weather at the time

  • Fine, no high winds2,896 (77%)
  • Raining, no high winds515 (14%)
  • Raining with high winds78 (2.1%)
  • Fine with high winds54 (1.4%)
  • Other196 (5.2%)
  • Not recorded9 (0.2%)

Road surface

  • Dry2,344 (63%)
  • Wet or damp1,263 (34%)
  • Frost or ice91 (2.4%)
  • Snow28 (0.7%)
  • Flood over 3cm deep19 (0.5%)
  • Oil or diesel3 (0.1%)

Type of road

  • Single carriageway2,427 (65%)
  • Roundabout690 (18%)
  • Dual carriageway578 (15%)
  • One way street or slip road48 (1.3%)
  • Not recorded5 (0.1%)

Source: Department for Transport, STATS19 road safety data

People hurt and vehicles involved in A339 crashes

Car occupants make up 72% of the people killed or injured on the A339, followed by motorcyclists (13%).

Casualties by road user

  • Car occupant3,828 (72%)
  • Motorcyclist702 (13%)
  • Pedestrian205 (3.9%)
  • Van occupant191 (3.6%)
  • Cyclist157 (3%)
  • Goods vehicle occupant (over 3.5 tonnes)97 (1.8%)
  • Other104 (2%)
  • Not recorded1 (under 0.1%)

Vehicles involved

  • Car5,386 (75%)
  • Motorcycle693 (9.6%)
  • Van or goods vehicle up to 3.5 tonnes417 (5.8%)
  • Goods vehicle over 3.5 tonnes385 (5.4%)
  • Pedal cycle159 (2.2%)
  • Other vehicle49 (0.7%)
  • Other98 (1.4%)
  • Not recorded2 (under 0.1%)

Casualties by age

  • 0 to 586 (1.6%)
  • 6 to 1088 (1.7%)
  • 11 to 15159 (3%)
  • 16 to 20871 (16%)
  • 21 to 25789 (15%)
  • 26 to 351,136 (21%)
  • 36 to 45841 (16%)
  • 46 to 55609 (12%)
  • 56 to 65364 (6.9%)
  • 66 to 75177 (3.3%)
  • Over 75123 (2.3%)
  • Not recorded42 (0.8%)

Drivers, passengers and pedestrians

  • Driver or rider3,755 (71%)
  • Passenger1,325 (25%)
  • Pedestrian205 (3.9%)

Source: Department for Transport, STATS19 road safety data

Map of recent crashes on the A339

Map of the 25 most recent crashes on the A339

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

  • 25 crashes
  • Fatal
  • Serious
  • Slight

A339 crashes by council area

Collisions on the A339 were recorded in 4 council areas. Basingstoke and Deane has the most, with 2,427, followed by East Hampshire (719) and West Berkshire (596).

Collisions on the A339 in each area, 1979 to 2025
RankAreaCollisionsCasualtiesFatalSerious
1stBasingstoke and Deane2,4273,49173660
2ndEast Hampshire71994824188
3rdWest Berkshire5968382092
4thNew Forest3400

A339 crashes by town

Collisions on the A339 were recorded in 5 towns and built-up areas, led by Basingstoke (292) and Alton, East Hampshire (284).

Recent crashes on the A339

These are the 25 most recent collisions on the A339, from 11 April to 22 December 2025.

Severity