Skip to main content
CrashStats

B3147 accidents: crash map and statistics

Police recorded 244 collisions on the B3147 from 1979 to 2025, with 315 casualties. Of those crashes, 5 were fatal and 34 serious, and 5 people were killed.

In 2025 there were 2 collisions on the B3147, level with 2024, with 3 casualties.

Collisions since 1979
244
2,981st highest of 4,923 roads
Casualties
315
1.29 per collision
Fatal collisions
5
5 people killed
Serious collisions
34
34 seriously injured
Collisions in 2025
2
Level with 2024
Casualties in 2025
3
Level with 2024

Crash severity on the B3147

On the B3147, 2% of collisions were fatal and 14% serious, against 1.6% and 18% across Great Britain.

Collisions by severity, 1979 to 2025

  • Fatal52%
  • Serious3414%
  • Slight20584%

Where the B3147 ranks among 4,923 roads

Most collisions
2,981st
Most casualties
3,054th
Most fatal collisions
2,545th
Most serious collisions
3,479th

B3147 accidents by year

Collisions on the B3147 peaked at 12 in 2006 and were down to 2 in 2025.

Collisions and casualties on the B3147, 1979 to 2025

  • Collisions
  • Collisions in 2025: 2
  • Casualties

Source: Department for Transport, STATS19 road safety data

View as a table
YearCollisionsCasualties
202523
202423
202344
2022711
202145
202033
201922
201846
201744
201658
2015812
201466
201368
201255
20111016
201056
200957
2008713
200744
20061222
200578
200467
20031112
2002811
200167
2000713
199957
199867
1997910
199667
19951215
1994810
199366
199256
19911011
199089
19891011
198822
198700
198600
198511
198411
198311
198212
198122
198000
197911

When crashes happen on the B3147

Friday has the most collisions on the B3147 (46), and 3pm to 6pm is the busiest time of day (63).

Collisions by day of the week

  • Monday37 (15%)
  • Tuesday31 (13%)
  • Wednesday36 (15%)
  • Thursday37 (15%)
  • Friday46 (19%)
  • Saturday33 (14%)
  • Sunday24 (9.8%)

Collisions by time of day

  • Midnight to 3am6 (2.5%)
  • 3am to 6am4 (1.6%)
  • 6am to 9am27 (11%)
  • 9am to noon52 (21%)
  • Noon to 3pm50 (20%)
  • 3pm to 6pm63 (26%)
  • 6pm to 9pm29 (12%)
  • 9pm to midnight13 (5.3%)

Collisions by month

  • January30 (12%)
  • February17 (7%)
  • March22 (9%)
  • April13 (5.3%)
  • May14 (5.7%)
  • June17 (7%)
  • July22 (9%)
  • August26 (11%)
  • September25 (10%)
  • October16 (6.6%)
  • November15 (6.1%)
  • December27 (11%)

Light conditions at the time

  • Daylight190 (78%)
  • Dark, street lights lit41 (17%)
  • Dark, no street lighting9 (3.7%)
  • Dark, street lights unlit4 (1.6%)

Source: Department for Transport, STATS19 road safety data

Road and weather conditions in B3147 crashes

On the B3147, 82% of collisions happened where the speed limit was 30 mph and 66% on a dry road surface.

Speed limit at the scene

  • 30 mph201 (82%)
  • 40 mph20 (8.2%)
  • 50 mph2 (0.8%)
  • 60 mph21 (8.6%)

Weather at the time

  • Fine, no high winds201 (82%)
  • Raining, no high winds29 (12%)
  • Raining with high winds5 (2%)
  • Fine with high winds3 (1.2%)
  • Fog or mist2 (0.8%)
  • Other4 (1.6%)

Road surface

  • Dry162 (66%)
  • Wet or damp79 (32%)
  • Frost or ice3 (1.2%)

Type of road

  • Single carriageway202 (83%)
  • Roundabout27 (11%)
  • One way street or slip road15 (6.1%)

Source: Department for Transport, STATS19 road safety data

People hurt and vehicles involved in B3147 crashes

Car occupants make up 58% of the people killed or injured on the B3147, followed by pedestrians (20%).

Casualties by road user

  • Car occupant183 (58%)
  • Pedestrian64 (20%)
  • Motorcyclist30 (9.5%)
  • Cyclist24 (7.6%)
  • Van occupant7 (2.2%)
  • Bus or coach occupant5 (1.6%)
  • Goods vehicle occupant (over 3.5 tonnes)1 (0.3%)
  • Taxi or private hire car occupant1 (0.3%)

Vehicles involved

  • Car346 (77%)
  • Motorcycle28 (6.3%)
  • Pedal cycle25 (5.6%)
  • Van or goods vehicle up to 3.5 tonnes22 (4.9%)
  • Taxi or private hire car7 (1.6%)
  • Bus or coach6 (1.3%)
  • Goods vehicle over 3.5 tonnes6 (1.3%)
  • Other8 (1.8%)

Casualties by age

  • 0 to 57 (2.2%)
  • 6 to 1011 (3.5%)
  • 11 to 1519 (6%)
  • 16 to 2046 (15%)
  • 21 to 2532 (10%)
  • 26 to 3539 (12%)
  • 36 to 4542 (13%)
  • 46 to 5539 (12%)
  • 56 to 6529 (9.2%)
  • 66 to 7530 (9.5%)
  • Over 7521 (6.7%)

Drivers, passengers and pedestrians

  • Driver or rider181 (57%)
  • Passenger70 (22%)
  • Pedestrian64 (20%)

Source: Department for Transport, STATS19 road safety data

Map of recent crashes on the B3147

Map of the 25 most recent crashes on the B3147

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

  • 25 crashes
  • Fatal
  • Serious
  • Slight

B3147 crashes by council area

All 244 collisions on the B3147 were in Dorset.

Collisions on the B3147 in each area, 1979 to 2025
RankAreaCollisionsCasualtiesFatalSerious
1stDorset244315534

B3147 crashes by town

Of the 244 collisions on the B3147, 214 were in the built-up area of Dorchester, Dorset.

Recent crashes on the B3147

These are the 25 most recent collisions on the B3147, from 2 December 2018 to 13 December 2025.

Severity