Fatal
Serious
Slight
Uncategorised
| Date | Local Authority | Vehicles | Casualties | Severity |
|---|---|---|---|---|
| Tue 10 Jan 1989 | St. Albans | 2 | 2 | Serious |
| Sat 14 Jan 1989 | Welwyn Hatfield | 2 | 1 | Slight |
| Thu 2 Feb 1989 | St. Albans | 1 | 1 | Slight |
| Tue 7 Feb 1989 | Welwyn Hatfield | 2 | 1 | Serious |
| Wed 22 Feb 1989 | Welwyn Hatfield | 2 | 1 | Slight |
| Mon 27 Feb 1989 | St. Albans | 3 | 2 | Slight |
| Wed 8 Mar 1989 | Welwyn Hatfield | 2 | 1 | Slight |
| Wed 26 Apr 1989 | St. Albans | 2 | 1 | Slight |
| Tue 9 May 1989 | Welwyn Hatfield | 1 | 1 | Slight |
| Fri 2 Jun 1989 | Welwyn Hatfield | 2 | 1 | Slight |
| Mon 3 Jul 1989 | Welwyn Hatfield | 3 | 1 | Slight |
| Mon 10 Jul 1989 | Welwyn Hatfield | 2 | 1 | Slight |
| Sat 22 Jul 1989 | Welwyn Hatfield | 2 | 1 | Slight |
| Sat 9 Sep 1989 | Welwyn Hatfield | 3 | 1 | Slight |
| Thu 14 Sep 1989 | Welwyn Hatfield | 1 | 1 | Slight |
| Sun 17 Sep 1989 | Welwyn Hatfield | 1 | 1 | Slight |
| Mon 25 Sep 1989 | St. Albans | 2 | 1 | Slight |
| Mon 16 Oct 1989 | Welwyn Hatfield | 1 | 1 | Slight |
| Tue 7 Nov 1989 | St. Albans | 2 | 1 | Slight |
| Tue 14 Nov 1989 | Welwyn Hatfield | 2 | 1 | Slight |
| Sat 18 Nov 1989 | Welwyn Hatfield | 2 | 1 | Slight |
| Tue 26 Dec 1989 | Welwyn Hatfield | 2 | 1 | Slight |
| Fri 29 Dec 1989 | Welwyn Hatfield | 2 | 1 | Slight |