Fatal
Serious
Slight
Uncategorised
| Date | Local Authority | Vehicles | Casualties | Severity |
|---|---|---|---|---|
| Tue 9 Jan 1990 | Middlesbrough | 2 | 1 | Slight |
| Fri 12 Jan 1990 | Middlesbrough | 4 | 1 | Fatal |
| Sun 14 Jan 1990 | Stockton-on-Tees | 2 | 2 | Slight |
| Wed 17 Jan 1990 | Middlesbrough | 2 | 1 | Slight |
| Tue 23 Jan 1990 | Middlesbrough | 1 | 1 | Slight |
| Sat 27 Jan 1990 | Middlesbrough | 1 | 1 | Slight |
| Sun 4 Feb 1990 | Middlesbrough | 1 | 1 | Slight |
| Sun 4 Feb 1990 | Middlesbrough | 2 | 2 | Slight |
| Wed 7 Feb 1990 | Middlesbrough | 3 | 1 | Slight |
| Fri 9 Feb 1990 | Middlesbrough | 2 | 1 | Slight |
| Tue 13 Feb 1990 | Middlesbrough | 2 | 1 | Slight |
| Tue 13 Feb 1990 | Middlesbrough | 1 | 1 | Slight |
| Wed 14 Feb 1990 | Redcar and Cleveland | 2 | 1 | Serious |
| Fri 23 Feb 1990 | Middlesbrough | 2 | 1 | Slight |
| Sat 24 Feb 1990 | Middlesbrough | 1 | 1 | Slight |
| Mon 26 Feb 1990 | Redcar and Cleveland | 2 | 1 | Slight |
| Mon 26 Feb 1990 | Middlesbrough | 3 | 1 | Slight |
| Tue 27 Feb 1990 | Middlesbrough | 2 | 1 | Slight |
| Fri 2 Mar 1990 | Middlesbrough | 2 | 1 | Slight |
| Wed 14 Mar 1990 | Middlesbrough | 2 | 1 | Slight |
| Tue 20 Mar 1990 | Middlesbrough | 1 | 1 | Serious |
| Thu 22 Mar 1990 | Middlesbrough | 1 | 1 | Slight |
| Mon 26 Mar 1990 | Redcar and Cleveland | 2 | 1 | Slight |
| Sat 31 Mar 1990 | Redcar and Cleveland | 2 | 1 | Slight |
| Mon 2 Apr 1990 | Middlesbrough | 2 | 1 | Slight |
| Fri 6 Apr 1990 | Redcar and Cleveland | 2 | 1 | Slight |
| Sun 8 Apr 1990 | Redcar and Cleveland | 2 | 3 | Slight |
| Sun 8 Apr 1990 | Middlesbrough | 2 | 2 | Slight |
| Tue 10 Apr 1990 | Redcar and Cleveland | 1 | 1 | Slight |
| Wed 11 Apr 1990 | Redcar and Cleveland | 2 | 1 | Slight |
| Fri 13 Apr 1990 | Redcar and Cleveland | 3 | 1 | Serious |
| Sat 14 Apr 1990 | Redcar and Cleveland | 3 | 1 | Slight |
| Sat 28 Apr 1990 | Middlesbrough | 3 | 1 | Slight |
| Sun 29 Apr 1990 | Redcar and Cleveland | 3 | 1 | Slight |
| Mon 30 Apr 1990 | Redcar and Cleveland | 2 | 1 | Slight |
| Tue 1 May 1990 | Redcar and Cleveland | 2 | 1 | Serious |
| Thu 3 May 1990 | Middlesbrough | 2 | 1 | Slight |
| Thu 3 May 1990 | Middlesbrough | 1 | 1 | Slight |
| Sat 5 May 1990 | Middlesbrough | 2 | 1 | Slight |
| Sun 6 May 1990 | Middlesbrough | 2 | 1 | Slight |
| Sat 12 May 1990 | Middlesbrough | 2 | 2 | Slight |
| Thu 17 May 1990 | Middlesbrough | 1 | 2 | Slight |
| Wed 23 May 1990 | Redcar and Cleveland | 2 | 1 | Slight |
| Wed 30 May 1990 | Redcar and Cleveland | 1 | 1 | Slight |
| Mon 4 Jun 1990 | Middlesbrough | 2 | 3 | Slight |
| Tue 5 Jun 1990 | Middlesbrough | 1 | 1 | Serious |
| Fri 8 Jun 1990 | Middlesbrough | 2 | 1 | Slight |
| Fri 8 Jun 1990 | Redcar and Cleveland | 1 | 1 | Slight |
| Sat 9 Jun 1990 | Stockton-on-Tees | 6 | 1 | Slight |
| Sun 10 Jun 1990 | Middlesbrough | 1 | 1 | Slight |
| Tue 12 Jun 1990 | Redcar and Cleveland | 2 | 2 | Slight |
| Wed 13 Jun 1990 | Middlesbrough | 2 | 1 | Slight |
| Fri 15 Jun 1990 | Redcar and Cleveland | 2 | 1 | Slight |
| Sat 23 Jun 1990 | Redcar and Cleveland | 2 | 1 | Slight |
| Sun 24 Jun 1990 | Middlesbrough | 2 | 2 | Serious |
| Tue 26 Jun 1990 | Redcar and Cleveland | 1 | 1 | Serious |
| Thu 28 Jun 1990 | Redcar and Cleveland | 1 | 2 | Serious |
| Thu 5 Jul 1990 | Redcar and Cleveland | 1 | 1 | Slight |
| Fri 6 Jul 1990 | Middlesbrough | 2 | 2 | Slight |
| Sat 7 Jul 1990 | Middlesbrough | 2 | 2 | Slight |
| Sat 14 Jul 1990 | Redcar and Cleveland | 2 | 1 | Fatal |
| Wed 18 Jul 1990 | Middlesbrough | 2 | 1 | Slight |
| Wed 18 Jul 1990 | Stockton-on-Tees | 2 | 2 | Slight |
| Tue 31 Jul 1990 | Redcar and Cleveland | 2 | 2 | Slight |
| Thu 2 Aug 1990 | Redcar and Cleveland | 2 | 1 | Slight |
| Mon 6 Aug 1990 | Redcar and Cleveland | 2 | 2 | Slight |
| Wed 8 Aug 1990 | Redcar and Cleveland | 3 | 1 | Slight |
| Fri 10 Aug 1990 | Middlesbrough | 1 | 1 | Slight |
| Mon 13 Aug 1990 | Middlesbrough | 2 | 1 | Slight |
| Sun 19 Aug 1990 | Stockton-on-Tees | 1 | 1 | Slight |
| Tue 21 Aug 1990 | Middlesbrough | 1 | 9 | Fatal |
| Tue 28 Aug 1990 | Middlesbrough | 2 | 1 | Slight |
| Tue 28 Aug 1990 | Middlesbrough | 2 | 1 | Slight |
| Wed 29 Aug 1990 | Middlesbrough | 1 | 1 | Slight |
| Thu 30 Aug 1990 | Middlesbrough | 2 | 1 | Slight |
| Thu 30 Aug 1990 | Middlesbrough | 1 | 1 | Serious |
| Fri 31 Aug 1990 | Middlesbrough | 1 | 1 | Serious |
| Sat 1 Sep 1990 | Middlesbrough | 1 | 2 | Slight |
| Sat 1 Sep 1990 | Middlesbrough | 2 | 1 | Slight |
| Mon 3 Sep 1990 | Middlesbrough | 2 | 1 | Slight |
| Wed 5 Sep 1990 | Redcar and Cleveland | 2 | 2 | Fatal |
| Fri 7 Sep 1990 | Middlesbrough | 1 | 2 | Slight |
| Sat 15 Sep 1990 | Redcar and Cleveland | 2 | 2 | Fatal |
| Wed 19 Sep 1990 | Redcar and Cleveland | 2 | 1 | Slight |
| Fri 21 Sep 1990 | Redcar and Cleveland | 2 | 1 | Slight |
| Mon 24 Sep 1990 | Middlesbrough | 2 | 1 | Slight |
| Wed 26 Sep 1990 | Middlesbrough | 2 | 3 | Slight |
| Mon 1 Oct 1990 | Redcar and Cleveland | 2 | 1 | Slight |
| Wed 3 Oct 1990 | Redcar and Cleveland | 1 | 1 | Slight |
| Wed 10 Oct 1990 | Stockton-on-Tees | 2 | 1 | Serious |
| Wed 10 Oct 1990 | Middlesbrough | 2 | 1 | Slight |
| Thu 11 Oct 1990 | Middlesbrough | 2 | 2 | Slight |
| Tue 16 Oct 1990 | Redcar and Cleveland | 2 | 2 | Serious |
| Wed 17 Oct 1990 | Redcar and Cleveland | 1 | 1 | Fatal |
| Fri 19 Oct 1990 | Middlesbrough | 1 | 1 | Slight |
| Thu 25 Oct 1990 | Middlesbrough | 2 | 1 | Slight |
| Wed 31 Oct 1990 | Middlesbrough | 2 | 2 | Slight |
| Fri 2 Nov 1990 | Middlesbrough | 2 | 1 | Slight |
| Sun 4 Nov 1990 | Middlesbrough | 2 | 4 | Slight |
| Sun 4 Nov 1990 | Middlesbrough | 3 | 4 | Slight |
| Mon 5 Nov 1990 | Redcar and Cleveland | 3 | 1 | Slight |
| Thu 8 Nov 1990 | Redcar and Cleveland | 1 | 1 | Slight |
| Fri 16 Nov 1990 | Redcar and Cleveland | 2 | 1 | Slight |
| Fri 16 Nov 1990 | Redcar and Cleveland | 2 | 1 | Slight |
| Mon 19 Nov 1990 | Middlesbrough | 2 | 2 | Slight |
| Mon 19 Nov 1990 | Redcar and Cleveland | 2 | 1 | Serious |
| Wed 21 Nov 1990 | Middlesbrough | 2 | 1 | Slight |
| Tue 4 Dec 1990 | Redcar and Cleveland | 3 | 3 | Slight |
| Wed 5 Dec 1990 | Redcar and Cleveland | 2 | 1 | Slight |
| Thu 6 Dec 1990 | Redcar and Cleveland | 1 | 2 | Slight |
| Thu 13 Dec 1990 | Redcar and Cleveland | 2 | 1 | Serious |
| Fri 14 Dec 1990 | Redcar and Cleveland | 2 | 1 | Slight |
| Sat 15 Dec 1990 | Middlesbrough | 2 | 1 | Slight |
| Tue 18 Dec 1990 | Middlesbrough | 3 | 1 | Slight |
| Thu 20 Dec 1990 | Redcar and Cleveland | 2 | 1 | Serious |
| Thu 20 Dec 1990 | Redcar and Cleveland | 2 | 1 | Slight |
| Mon 24 Dec 1990 | Middlesbrough | 2 | 2 | Slight |
| Thu 27 Dec 1990 | Middlesbrough | 1 | 1 | Slight |
| Mon 31 Dec 1990 | Middlesbrough | 2 | 1 | Slight |