Skip to main content
CrashStats

WD19 road accidents: crash map and statistics

Police recorded 2,609 road traffic collisions in the WD19 postcode district, Three Rivers, from 1979 to 2025, and 3,615 people were killed or injured in them. Of those collisions, 22 were fatal and 562 were serious.

In 2025 police recorded 23 collisions, level with 2024.

Collisions since 1979
2,609
1,472nd of 2,813 postcode districts, highest first
Casualties
3,615
1.39 per collision
Fatal collisions
22
22 people killed
Serious collisions
562
682 seriously injured
Collisions in 2025
23
Level with 2024
Casualties in 2025
33
Up 38% on 2024

Road collision statistics for WD19

Collisions by severity, 1979 to 2025

  • Fatal220.8%
  • Serious56222%
  • Slight2,02578%

What the data shows

  • WD19 had 260 collisions from 2016 to 2025, 32% fewer than the 383 from 2006 to 2015.
  • 22% of collisions in WD19 were fatal or serious, against 20% across Great Britain.
  • 547 children under 16 were killed or injured in WD19, 15% of the casualties whose age was recorded.
  • The road surface was wet, icy, snowy or flooded in 38% of collisions in WD19.

Where WD19 ranks among 2,813 postcode districts

Most collisions
1,472nd
Most casualties
1,438th
Most fatal collisions
2,104th
Most serious collisions
1,322nd

Collisions by day of the week

  • Monday354 (14%)
  • Tuesday364 (14%)
  • Wednesday364 (14%)
  • Thursday379 (15%)
  • Friday436 (17%)
  • Saturday405 (16%)
  • Sunday307 (12%)

Light conditions

  • Daylight1,862 (71%)
  • Dark, street lights lit693 (27%)
  • Dark, lighting unknown24 (0.9%)
  • Dark, street lights unlit20 (0.8%)
  • Dark, no street lighting10 (0.4%)

Type of road

  • Single carriageway2,404 (92%)
  • One way street or slip road101 (3.9%)
  • Roundabout69 (2.6%)
  • Dual carriageway22 (0.8%)
  • Not recorded13 (0.5%)

Speed limit at the scene

  • 20 mph23 (0.9%)
  • 30 mph2,334 (89%)
  • 40 mph117 (4.5%)
  • 50 mph5 (0.2%)
  • 60 mph128 (4.9%)
  • 70 mph2 (0.1%)

Weather at the time

  • Fine, no high winds2,044 (78%)
  • Raining, no high winds409 (16%)
  • Fine with high winds25 (1%)
  • Raining with high winds21 (0.8%)
  • Fog or mist18 (0.7%)
  • Snowing, no high winds10 (0.4%)
  • Snowing with high winds2 (0.1%)
  • Other45 (1.7%)
  • Not recorded35 (1.3%)

Who was hurt

  • Car occupant2,316 (64%)
  • Pedestrian440 (12%)
  • Motorcyclist419 (12%)
  • Cyclist247 (6.8%)
  • Van occupant75 (2.1%)
  • Bus or coach occupant56 (1.5%)
  • Goods vehicle occupant (over 3.5 tonnes)20 (0.6%)
  • Taxi or private hire car occupant16 (0.4%)
  • Other vehicle occupant11 (0.3%)
  • Minibus occupant10 (0.3%)
  • Other1 (under 0.1%)
  • Not recorded4 (0.1%)

Source: Department for Transport, STATS19 road safety data

WD19 road accidents by year

Collisions and casualties in WD19, 1979 to 2025

Collisions in WD19 peaked at 103 in 1997; 2025 had 23.

  • Collisions
  • Collisions in 2025: 23
  • Casualties

Source: Department for Transport, STATS19 road safety data

View as a table
YearCollisionsCasualties
20252333
20242324
20232631
20221720
20212332
20202025
20192429
20183043
20173440
20164056
20152936
20144266
20133345
20123239
20113954
20103847
20094062
20084467
20074155
20064563
20055080
20044965
20035366
200273100
200172101
200080103
199983124
199890121
1997103141
1996101164
1995100148
199482128
199363101
19925682
19915980
19905984
19895672
198873104
19875672
19867392
198586117
19847595
19836683
198292127
198174102
19807094
197972102

Map of recent crashes in WD19

Map of the 24 most recent crashes in WD19

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

  • 24 crashes
  • Serious
  • Slight

Recent road crashes in WD19

The 24 most recent collisions in WD19 happened between 2 December 2024 and 27 December 2025.

Severity

Crashes by road in WD19

The B4542 has the most collisions in WD19, 574 of 2,609 (22%), followed by the A4125 (550).

Collisions in WD19 on each road, 1979 to 2025
RankRoadCollisionsCasualtiesFatalSerious
1stB45425748066128
2ndA41255508344112
3rdA40084096058100
4thA411162205020
5thA41785579017
6thB46251801

Council areas covering WD19

Collisions in WD19 were recorded in 3 council areas. Three Rivers has 1,646 of 2,609 (63%).

Collisions in WD19 by council area, 1979 to 2025
RankCouncil areaCollisionsCasualtiesFatalSerious
1stThree Rivers1,6462,30916370
2ndWatford9311,2686187
3rdHertsmere303605

Town in WD19

Of the 2,609 collisions in WD19, 2,089 (80%) were in Watford, Watford.