Fatal
Serious
Slight
Uncategorised
| Date | Local Authority | Vehicles | Casualties | Severity |
|---|---|---|---|---|
| Wed 18 Jan 1989 | Stockton-on-Tees | 2 | 2 | Slight |
| Wed 8 Feb 1989 | Middlesbrough | 2 | 1 | Slight |
| Wed 8 Feb 1989 | Stockton-on-Tees | 2 | 2 | Slight |
| Wed 8 Mar 1989 | Stockton-on-Tees | 2 | 2 | Slight |
| Tue 14 Mar 1989 | Stockton-on-Tees | 2 | 1 | Slight |
| Fri 17 Mar 1989 | Middlesbrough | 2 | 1 | Slight |
| Mon 3 Apr 1989 | Stockton-on-Tees | 2 | 1 | Slight |
| Mon 17 Apr 1989 | Middlesbrough | 2 | 1 | Slight |
| Tue 18 Apr 1989 | Stockton-on-Tees | 2 | 1 | Slight |
| Thu 27 Apr 1989 | Middlesbrough | 2 | 1 | Slight |
| Fri 5 May 1989 | Stockton-on-Tees | 2 | 1 | Slight |
| Tue 9 May 1989 | Middlesbrough | 1 | 1 | Slight |
| Tue 9 May 1989 | Stockton-on-Tees | 1 | 2 | Slight |
| Fri 12 May 1989 | Stockton-on-Tees | 2 | 1 | Slight |
| Tue 16 May 1989 | Stockton-on-Tees | 2 | 1 | Slight |
| Tue 16 May 1989 | Stockton-on-Tees | 3 | 1 | Slight |
| Mon 22 May 1989 | Stockton-on-Tees | 2 | 2 | Slight |
| Thu 25 May 1989 | Middlesbrough | 2 | 1 | Slight |
| Thu 25 May 1989 | Middlesbrough | 1 | 1 | Slight |
| Sun 4 Jun 1989 | Stockton-on-Tees | 2 | 1 | Fatal |
| Sun 2 Jul 1989 | Stockton-on-Tees | 1 | 1 | Slight |
| Tue 4 Jul 1989 | Stockton-on-Tees | 2 | 1 | Slight |
| Sat 8 Jul 1989 | Middlesbrough | 2 | 1 | Slight |
| Thu 13 Jul 1989 | Stockton-on-Tees | 2 | 1 | Slight |
| Mon 14 Aug 1989 | Stockton-on-Tees | 2 | 1 | Slight |
| Tue 15 Aug 1989 | Middlesbrough | 2 | 1 | Slight |
| Wed 23 Aug 1989 | Stockton-on-Tees | 2 | 1 | Slight |
| Wed 30 Aug 1989 | Stockton-on-Tees | 2 | 1 | Slight |
| Wed 13 Sep 1989 | Middlesbrough | 1 | 1 | Slight |
| Fri 15 Sep 1989 | Stockton-on-Tees | 2 | 2 | Slight |
| Sat 16 Sep 1989 | Stockton-on-Tees | 1 | 1 | Slight |
| Tue 17 Oct 1989 | Stockton-on-Tees | 2 | 1 | Slight |
| Thu 26 Oct 1989 | Stockton-on-Tees | 2 | 1 | Slight |
| Mon 30 Oct 1989 | Stockton-on-Tees | 1 | 1 | Serious |
| Sat 11 Nov 1989 | Stockton-on-Tees | 2 | 1 | Slight |
| Wed 22 Nov 1989 | Middlesbrough | 3 | 1 | Slight |
| Wed 22 Nov 1989 | Middlesbrough | 2 | 1 | Slight |
| Thu 23 Nov 1989 | Stockton-on-Tees | 2 | 1 | Slight |
| Wed 20 Dec 1989 | Stockton-on-Tees | 2 | 1 | Slight |
| Fri 22 Dec 1989 | Stockton-on-Tees | 1 | 1 | Serious |
| Fri 22 Dec 1989 | Stockton-on-Tees | 1 | 1 | Slight |
| Sun 24 Dec 1989 | Middlesbrough | 2 | 1 | Serious |