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