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CrashStats

Dorchester (Dorset) road accidents: crash map and statistics

Police recorded 1,502 road traffic collisions in Dorchester, Dorset, from 1979 to 2025, and 1,869 people were killed or injured in them. Of those collisions, 14 were fatal and 234 were serious.

In 2025 police recorded 22 collisions, down 4% on 2024 (23).

Collisions since 1979
1,502
568th highest of 2,851 towns
Casualties
1,869
1.24 per collision
Fatal collisions
14
14 people killed
Serious collisions
234
248 seriously injured
Collisions in 2025
22
Down 4% on 2024
Casualties in 2025
25
Up 4% on 2024

Road collision statistics for Dorchester

Collisions by severity, 1979 to 2025

  • Fatal140.9%
  • Serious23416%
  • Slight1,25483%

What the data shows

  • Dorchester had 213 collisions from 2016 to 2025, 28% fewer than the 294 from 2006 to 2015.
  • 17% of collisions in Dorchester were fatal or serious, against 20% across Great Britain.
  • 262 children under 16 were killed or injured in Dorchester, 14% of the casualties whose age was recorded.
  • The road surface was wet, icy, snowy or flooded in 30% of collisions in Dorchester.

Where Dorchester ranks among 2,851 towns

Most collisions
568th
Most casualties
572nd
Most fatal collisions
669th
Most serious collisions
629th

Collisions by day of the week

  • Monday218 (15%)
  • Tuesday214 (14%)
  • Wednesday255 (17%)
  • Thursday206 (14%)
  • Friday268 (18%)
  • Saturday202 (13%)
  • Sunday139 (9.3%)

Light conditions

  • Daylight1,204 (80%)
  • Dark, street lights lit275 (18%)
  • Dark, no street lighting11 (0.7%)
  • Dark, street lights unlit9 (0.6%)
  • Dark, lighting unknown3 (0.2%)

Type of road

  • Single carriageway1,362 (91%)
  • Roundabout78 (5.2%)
  • One way street or slip road50 (3.3%)
  • Dual carriageway1 (0.1%)
  • Not recorded11 (0.7%)

Speed limit at the scene

  • 20 mph12 (0.8%)
  • 30 mph1,391 (93%)
  • 40 mph29 (1.9%)
  • 50 mph3 (0.2%)
  • 60 mph66 (4.4%)
  • Not recorded1 (0.1%)

Weather at the time

  • Fine, no high winds1,221 (81%)
  • Raining, no high winds201 (13%)
  • Raining with high winds17 (1.1%)
  • Fine with high winds16 (1.1%)
  • Fog or mist12 (0.8%)
  • Snowing, no high winds3 (0.2%)
  • Snowing with high winds1 (0.1%)
  • Other28 (1.9%)
  • Not recorded3 (0.2%)

Who was hurt

  • Car occupant871 (47%)
  • Pedestrian421 (23%)
  • Motorcyclist289 (15%)
  • Cyclist209 (11%)
  • Van occupant39 (2.1%)
  • Bus or coach occupant11 (0.6%)
  • Other vehicle occupant11 (0.6%)
  • Minibus occupant8 (0.4%)
  • Goods vehicle occupant (over 3.5 tonnes)4 (0.2%)
  • Mobility scooter rider4 (0.2%)
  • Other2 (0.1%)

Source: Department for Transport, STATS19 road safety data

Dorchester road accidents by year

Collisions and casualties in Dorchester, 1979 to 2025

Collisions in Dorchester peaked at 56 in 1980; 2025 had 22.

  • Collisions
  • Collisions in 2025: 22
  • Casualties

Source: Department for Transport, STATS19 road safety data

View as a table
YearCollisionsCasualties
20252225
20242324
20232023
20222731
20212325
20201416
20191922
20182738
20171724
20162128
20152633
20142533
20133135
20122631
20112030
20102732
20093748
20082833
20072838
20064673
20053844
20043342
20033944
20022937
20013539
20003045
19993239
19983856
19973234
19962844
19952230
19943643
19932630
19922026
19913336
19902833
19894150
19884250
19874556
19863743
19853440
19844663
19835057
19824860
19814757
19805670
19795059

Map of recent crashes in Dorchester

Map of the 24 most recent crashes in Dorchester

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

  • 24 crashes
  • Fatal
  • Serious
  • Slight

Recent road crashes in Dorchester

The 24 most recent collisions in Dorchester happened between 26 November 2024 and 17 December 2025.

Severity

Crashes by road in Dorchester

The B3147 has the most collisions in Dorchester, 214 of 1,502 (14%), followed by the B3150 (193).

Collisions in Dorchester on each road, 1979 to 2025
RankRoadCollisionsCasualtiesFatalSerious
1stB3147214259327
2ndB3150193238229
3rdA35183257327
4thB3144165204015
5thA354105126016
6thB3143425707
7thA352243405
8thA37233302

Council area for Dorchester

Dorchester is in Dorset, where police recorded 51,591 collisions from 1979 to 2025. Dorchester accounts for 2.9% of them.

Postcode district for Dorchester

All 1,502 collisions in Dorchester were in the DT1 postcode district.