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CrashStats

Grovehill, Dacorum, HP1 3DL area: accident hotspot

Collisions, 2001 to 2025
88
8,850th busiest of 12,033 hotspots
Casualties
120
1.36 per collision
Fatal collisions
2
3 people killed
Collisions in 2025
3
3 in 2024

Crash severity at the HP1 3DL hotspot

15 of the 88 collisions here (17%) killed or seriously injured someone.

Collisions by severity, 2001 to 2025

  • Fatal22.3%
  • Serious1315%
  • Slight7383%

People hurt, 2001 to 2025

Killed
3
Seriously injured
15
Slightly injured
102
All casualties
120

Accidents by year at the HP1 3DL hotspot

Collisions here peaked at 9 in 2004, against an average of 3.5 a year from 2001 to 2025.

Collisions and casualties at the HP1 3DL hotspot, 2001 to 2025

  • Collisions
  • Collisions in 2025: 3
  • Casualties

Source: Department for Transport, STATS19 road safety data

View as a table
YearCollisionsCasualties
202534
202434
202300
202222
202133
202011
201923
201834
201746
201635
201556
201434
201346
201223
201111
201047
200956
200845
200768
200657
200555
2004916
200322
200267
200135

Map of crashes at the HP1 3DL hotspot

The 48 most recent collisions at this hotspot, coloured by severity, around its centre near HP1 3DL.

Map of the 48 most recent collisions at the Grovehill, Dacorum, HP1 3DL area accident hotspot

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

  • 48 crashes
  • Fatal
  • Serious
  • Slight

Centre of the hotspot

Hotspot area, 700 m radius

Details of the HP1 3DL hotspot

This hotspot counts every collision police recorded from 2001 to 2025 within 700 metres of its centre, except those already counted in a busier hotspot.

Ward
Grovehill
Council area
Dacorum
Nearest postcode to the centre
HP1 3DL
Postcode district
HP1
Centre (latitude, longitude)
51.76708, -0.48118
Radius
700 metres
Years covered
2001 to 2025
Years with a collision
24 of 25
Latest collision
30 November 2025
Rank by collisions
8,850th of 12,033 hotspots

Roads at the HP1 3DL hotspot

Most collisions at this hotspot were on the A4146, with 51 of 88, followed by the A4147 with 8.

Collisions at the HP1 3DL hotspot on each road, 2001 to 2025
RankRoadCollisionsCasualtiesFatalSerious
1stA4146517817
2ndA41478901
3rdB4403411

Towns near the HP1 3DL hotspot

23 of the 88 collisions at this hotspot were inside the built-up area of Hemel Hempstead.

All 88 crashes at the HP1 3DL hotspot

Newest first, from 9 January 2001 to 30 November 2025, 48 to a page.

Severity
Year