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CrashStats

B3404 accidents: crash map and statistics

Police recorded 164 collisions on the B3404 from 1979 to 2025, with 209 casualties. Of those crashes, 3 were fatal and 39 serious, and 3 people were killed.

In 2025 there were 4 collisions on the B3404, down 33% from 6 in 2024, with 5 casualties.

Collisions since 1979
164
3,491st highest of 4,923 roads
Casualties
209
1.27 per collision
Fatal collisions
3
3 people killed
Serious collisions
39
43 seriously injured
Collisions in 2025
4
Down 33% on 2024
Casualties in 2025
5
Down 17% on 2024

Crash severity on the B3404

On the B3404, 1.8% of collisions were fatal and 24% serious, against 1.6% and 18% across Great Britain.

Collisions by severity, 1979 to 2025

  • Fatal31.8%
  • Serious3924%
  • Slight12274%

Where the B3404 ranks among 4,923 roads

Most collisions
3,491st
Most casualties
3,560th
Most fatal collisions
3,114th
Most serious collisions
3,304th

B3404 accidents by year

Collisions on the B3404 peaked at 10 in 2001 and were down to 4 in 2025.

Collisions and casualties on the B3404, 1979 to 2025

  • Collisions
  • Collisions in 2025: 4
  • Casualties

Source: Department for Transport, STATS19 road safety data

View as a table
YearCollisionsCasualties
202545
202466
202300
202211
202111
202045
201911
201822
201711
201611
201522
201422
201311
201222
201188
201055
200966
200856
200733
200622
200523
200412
200311
200255
20011014
200011
199933
199857
199745
199657
199548
199424
199358
199246
199111
199069
198934
198879
198733
198648
198511
198411
198368
198244
198155
198068
1979814

When crashes happen on the B3404

Saturday has the most collisions on the B3404 (33), and 3pm to 6pm is the busiest time of day (39).

Collisions by day of the week

  • Monday20 (12%)
  • Tuesday26 (16%)
  • Wednesday25 (15%)
  • Thursday29 (18%)
  • Friday14 (8.5%)
  • Saturday33 (20%)
  • Sunday17 (10%)

Collisions by time of day

  • Midnight to 3am6 (3.7%)
  • 3am to 6am0 (0%)
  • 6am to 9am28 (17%)
  • 9am to noon35 (21%)
  • Noon to 3pm20 (12%)
  • 3pm to 6pm39 (24%)
  • 6pm to 9pm22 (13%)
  • 9pm to midnight14 (8.5%)

Collisions by month

  • January11 (6.7%)
  • February9 (5.5%)
  • March16 (9.8%)
  • April14 (8.5%)
  • May7 (4.3%)
  • June14 (8.5%)
  • July16 (9.8%)
  • August14 (8.5%)
  • September17 (10%)
  • October14 (8.5%)
  • November12 (7.3%)
  • December20 (12%)

Light conditions at the time

  • Daylight118 (72%)
  • Dark, street lights lit22 (13%)
  • Dark, no street lighting20 (12%)
  • Dark, lighting unknown4 (2.4%)

Source: Department for Transport, STATS19 road safety data

Road and weather conditions in B3404 crashes

On the B3404, 61% of collisions happened where the speed limit was 30 mph and 73% on a dry road surface.

Speed limit at the scene

  • 30 mph100 (61%)
  • 40 mph6 (3.7%)
  • 50 mph2 (1.2%)
  • 60 mph48 (29%)
  • 70 mph8 (4.9%)

Weather at the time

  • Fine, no high winds137 (84%)
  • Raining, no high winds15 (9.1%)
  • Fine with high winds1 (0.6%)
  • Fog or mist1 (0.6%)
  • Raining with high winds1 (0.6%)
  • Other9 (5.5%)

Road surface

  • Dry119 (73%)
  • Wet or damp39 (24%)
  • Frost or ice4 (2.4%)
  • Flood over 3cm deep1 (0.6%)
  • Snow1 (0.6%)

Type of road

  • Single carriageway143 (87%)
  • One way street or slip road13 (7.9%)
  • Roundabout7 (4.3%)
  • Not recorded1 (0.6%)

Source: Department for Transport, STATS19 road safety data

People hurt and vehicles involved in B3404 crashes

Car occupants make up 49% of the people killed or injured on the B3404, followed by pedestrians (18%).

Casualties by road user

  • Car occupant102 (49%)
  • Pedestrian38 (18%)
  • Motorcyclist32 (15%)
  • Cyclist18 (8.6%)
  • Bus or coach occupant7 (3.3%)
  • Other vehicle occupant4 (1.9%)
  • Van occupant4 (1.9%)
  • Other4 (1.9%)

Vehicles involved

  • Car203 (70%)
  • Motorcycle30 (10%)
  • Pedal cycle18 (6.2%)
  • Van or goods vehicle up to 3.5 tonnes15 (5.1%)
  • Bus or coach10 (3.4%)
  • Goods vehicle over 3.5 tonnes7 (2.4%)
  • Taxi or private hire car5 (1.7%)
  • Other vehicle4 (1.4%)

Casualties by age

  • 0 to 55 (2.4%)
  • 6 to 104 (1.9%)
  • 11 to 1515 (7.2%)
  • 16 to 2042 (20%)
  • 21 to 2519 (9.1%)
  • 26 to 3538 (18%)
  • 36 to 4532 (15%)
  • 46 to 5521 (10%)
  • 56 to 6510 (4.8%)
  • 66 to 7512 (5.7%)
  • Over 7511 (5.3%)

Drivers, passengers and pedestrians

  • Driver or rider123 (59%)
  • Passenger48 (23%)
  • Pedestrian38 (18%)

Source: Department for Transport, STATS19 road safety data

Map of recent crashes on the B3404

Map of the 25 most recent crashes on the B3404

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

  • 25 crashes
  • Fatal
  • Serious
  • Slight

B3404 crashes by council area

Of the 164 collisions on the B3404, 162 were in Winchester.

Collisions on the B3404 in each area, 1979 to 2025
RankAreaCollisionsCasualtiesFatalSerious
1stWinchester162204338

B3404 crashes by town

Of the 164 collisions on the B3404, 100 were in the built-up area of Winchester.

Recent crashes on the B3404

These are the 25 most recent collisions on the B3404, from 29 January 2014 to 24 November 2025.

Severity