Fatal
Serious
Slight
Uncategorised
| Date | Local Authority | Vehicles | Casualties | Severity |
|---|---|---|---|---|
| Thu 5 Jan 1989 | Hertsmere | 2 | 1 | Slight |
| Fri 20 Jan 1989 | Hertsmere | 1 | 1 | Slight |
| Fri 3 Feb 1989 | Hertsmere | 2 | 4 | Serious |
| Sat 4 Mar 1989 | Hertsmere | 2 | 2 | Serious |
| Tue 28 Mar 1989 | Hertsmere | 2 | 1 | Slight |
| Thu 30 Mar 1989 | Hertsmere | 2 | 1 | Slight |
| Thu 6 Apr 1989 | Hertsmere | 2 | 2 | Slight |
| Thu 6 Apr 1989 | Hertsmere | 1 | 1 | Slight |
| Mon 10 Apr 1989 | Hertsmere | 2 | 1 | Slight |
| Thu 13 Apr 1989 | St. Albans | 2 | 2 | Serious |
| Mon 24 Apr 1989 | St. Albans | 2 | 1 | Slight |
| Mon 15 May 1989 | Hertsmere | 2 | 2 | Slight |
| Fri 19 May 1989 | Hertsmere | 2 | 1 | Slight |
| Wed 24 May 1989 | Hertsmere | 2 | 2 | Serious |
| Sun 28 May 1989 | Hertsmere | 3 | 2 | Slight |
| Sat 3 Jun 1989 | Hertsmere | 1 | 1 | Slight |
| Mon 19 Jun 1989 | Hertsmere | 2 | 1 | Slight |
| Sun 16 Jul 1989 | Hertsmere | 2 | 1 | Slight |
| Fri 21 Jul 1989 | St. Albans | 2 | 1 | Slight |
| Sat 22 Jul 1989 | Hertsmere | 2 | 1 | Slight |
| Thu 10 Aug 1989 | Hertsmere | 2 | 1 | Slight |
| Thu 10 Aug 1989 | Hertsmere | 1 | 1 | Slight |
| Mon 14 Aug 1989 | Hertsmere | 2 | 1 | Slight |
| Fri 18 Aug 1989 | Hertsmere | 1 | 1 | Slight |
| Wed 23 Aug 1989 | Hertsmere | 2 | 1 | Slight |
| Wed 23 Aug 1989 | Hertsmere | 1 | 1 | Slight |
| Fri 25 Aug 1989 | Hertsmere | 2 | 1 | Slight |
| Sat 2 Sep 1989 | Hertsmere | 2 | 1 | Slight |
| Tue 12 Sep 1989 | Hertsmere | 2 | 1 | Slight |
| Wed 13 Sep 1989 | Hertsmere | 2 | 1 | Slight |
| Fri 29 Sep 1989 | Hertsmere | 2 | 1 | Slight |
| Fri 29 Sep 1989 | Hertsmere | 1 | 1 | Serious |
| Sat 30 Sep 1989 | Hertsmere | 2 | 1 | Slight |
| Mon 30 Oct 1989 | Hertsmere | 2 | 1 | Serious |
| Sat 4 Nov 1989 | Hertsmere | 3 | 1 | Slight |
| Thu 9 Nov 1989 | Hertsmere | 2 | 2 | Slight |
| Fri 24 Nov 1989 | Hertsmere | 2 | 1 | Slight |
| Sun 26 Nov 1989 | Hertsmere | 3 | 2 | Fatal |
| Sun 10 Dec 1989 | St. Albans | 2 | 1 | Slight |
| Sun 10 Dec 1989 | Hertsmere | 2 | 1 | Slight |