Fatal
Serious
Slight
Uncategorised
| Date | Local Authority | Vehicles | Casualties | Severity |
|---|---|---|---|---|
| Sat 11 Jan 1986 | Middlesbrough | 2 | 1 | Slight |
| Mon 13 Jan 1986 | Middlesbrough | 1 | 1 | Serious |
| Wed 15 Jan 1986 | Middlesbrough | 1 | 1 | Serious |
| Thu 16 Jan 1986 | Redcar and Cleveland | 1 | 1 | Slight |
| Thu 23 Jan 1986 | Middlesbrough | 2 | 1 | Slight |
| Sun 26 Jan 1986 | Middlesbrough | 1 | 1 | Slight |
| Wed 29 Jan 1986 | Redcar and Cleveland | 2 | 3 | Slight |
| Thu 30 Jan 1986 | Middlesbrough | 1 | 1 | Slight |
| Thu 30 Jan 1986 | Redcar and Cleveland | 2 | 1 | Slight |
| Tue 4 Feb 1986 | Redcar and Cleveland | 1 | 1 | Serious |
| Thu 6 Feb 1986 | Redcar and Cleveland | 2 | 1 | Serious |
| Tue 11 Feb 1986 | Middlesbrough | 1 | 4 | Slight |
| Sat 15 Feb 1986 | Middlesbrough | 1 | 1 | Slight |
| Mon 17 Feb 1986 | Redcar and Cleveland | 1 | 1 | Slight |
| Wed 19 Feb 1986 | Redcar and Cleveland | 1 | 4 | Serious |
| Fri 21 Feb 1986 | Middlesbrough | 2 | 1 | Slight |
| Sat 22 Feb 1986 | Redcar and Cleveland | 2 | 1 | Slight |
| Mon 24 Feb 1986 | Stockton-on-Tees | 2 | 1 | Slight |
| Fri 28 Feb 1986 | Redcar and Cleveland | 1 | 1 | Serious |
| Sat 1 Mar 1986 | Middlesbrough | 3 | 2 | Slight |
| Sat 1 Mar 1986 | Middlesbrough | 1 | 1 | Serious |
| Mon 3 Mar 1986 | Redcar and Cleveland | 2 | 1 | Slight |
| Thu 6 Mar 1986 | Middlesbrough | 3 | 1 | Slight |
| Fri 7 Mar 1986 | Middlesbrough | 1 | 1 | Fatal |
| Sun 9 Mar 1986 | Middlesbrough | 2 | 2 | Slight |
| Tue 18 Mar 1986 | Middlesbrough | 2 | 1 | Slight |
| Sun 23 Mar 1986 | Middlesbrough | 1 | 1 | Serious |
| Mon 24 Mar 1986 | Middlesbrough | 1 | 1 | Slight |
| Thu 3 Apr 1986 | Redcar and Cleveland | 2 | 1 | Slight |
| Fri 4 Apr 1986 | Redcar and Cleveland | 3 | 3 | Slight |
| Sat 5 Apr 1986 | Redcar and Cleveland | 1 | 1 | Slight |
| Thu 10 Apr 1986 | Middlesbrough | 1 | 1 | Slight |
| Fri 11 Apr 1986 | Middlesbrough | 2 | 1 | Slight |
| Thu 17 Apr 1986 | Redcar and Cleveland | 2 | 1 | Slight |
| Thu 17 Apr 1986 | Middlesbrough | 1 | 1 | Slight |
| Mon 21 Apr 1986 | Middlesbrough | 1 | 1 | Slight |
| Wed 30 Apr 1986 | Redcar and Cleveland | 2 | 1 | Slight |
| Wed 30 Apr 1986 | Middlesbrough | 4 | 4 | Serious |
| Fri 2 May 1986 | Middlesbrough | 1 | 1 | Slight |
| Fri 2 May 1986 | Redcar and Cleveland | 1 | 2 | Serious |
| Tue 6 May 1986 | Middlesbrough | 1 | 1 | Slight |
| Tue 6 May 1986 | Middlesbrough | 2 | 3 | Slight |
| Wed 14 May 1986 | Middlesbrough | 1 | 1 | Slight |
| Wed 14 May 1986 | Middlesbrough | 2 | 2 | Slight |
| Thu 15 May 1986 | Redcar and Cleveland | 1 | 1 | Slight |
| Fri 16 May 1986 | Middlesbrough | 2 | 2 | Slight |
| Sun 18 May 1986 | Redcar and Cleveland | 2 | 1 | Slight |
| Mon 19 May 1986 | Middlesbrough | 2 | 2 | Slight |
| Fri 23 May 1986 | Middlesbrough | 1 | 1 | Slight |
| Fri 30 May 1986 | Middlesbrough | 1 | 1 | Slight |
| Mon 2 Jun 1986 | Middlesbrough | 1 | 1 | Slight |
| Wed 4 Jun 1986 | Stockton-on-Tees | 1 | 1 | Serious |
| Tue 10 Jun 1986 | Middlesbrough | 2 | 1 | Slight |
| Sun 15 Jun 1986 | Middlesbrough | 1 | 1 | Slight |
| Wed 25 Jun 1986 | Middlesbrough | 1 | 1 | Slight |
| Thu 26 Jun 1986 | Redcar and Cleveland | 1 | 1 | Slight |
| Sat 28 Jun 1986 | Redcar and Cleveland | 2 | 1 | Slight |
| Tue 1 Jul 1986 | Middlesbrough | 2 | 1 | Slight |
| Sun 6 Jul 1986 | Middlesbrough | 2 | 1 | Slight |
| Sun 6 Jul 1986 | Redcar and Cleveland | 1 | 1 | Slight |
| Thu 10 Jul 1986 | Middlesbrough | 2 | 1 | Slight |
| Fri 11 Jul 1986 | Redcar and Cleveland | 1 | 1 | Serious |
| Sat 12 Jul 1986 | Middlesbrough | 1 | 1 | Slight |
| Mon 14 Jul 1986 | Redcar and Cleveland | 3 | 1 | Serious |
| Thu 24 Jul 1986 | Redcar and Cleveland | 2 | 1 | Slight |
| Fri 25 Jul 1986 | Middlesbrough | 2 | 1 | Slight |
| Sat 2 Aug 1986 | Redcar and Cleveland | 1 | 1 | Slight |
| Tue 5 Aug 1986 | Redcar and Cleveland | 1 | 1 | Slight |
| Mon 11 Aug 1986 | Redcar and Cleveland | 1 | 2 | Serious |
| Sat 16 Aug 1986 | Redcar and Cleveland | 1 | 1 | Serious |
| Mon 18 Aug 1986 | Redcar and Cleveland | 1 | 1 | Slight |
| Mon 18 Aug 1986 | Redcar and Cleveland | 1 | 1 | Slight |
| Thu 21 Aug 1986 | Redcar and Cleveland | 2 | 1 | Slight |
| Tue 26 Aug 1986 | Middlesbrough | 1 | 1 | Serious |
| Thu 28 Aug 1986 | Middlesbrough | 2 | 3 | Serious |
| Mon 1 Sep 1986 | Redcar and Cleveland | 2 | 1 | Fatal |
| Wed 3 Sep 1986 | Middlesbrough | 1 | 4 | Slight |
| Mon 8 Sep 1986 | Middlesbrough | 2 | 1 | Slight |
| Mon 8 Sep 1986 | Redcar and Cleveland | 1 | 1 | Serious |
| Tue 16 Sep 1986 | Redcar and Cleveland | 1 | 1 | Slight |
| Tue 16 Sep 1986 | Redcar and Cleveland | 1 | 1 | Slight |
| Fri 19 Sep 1986 | Redcar and Cleveland | 1 | 1 | Slight |
| Mon 22 Sep 1986 | Redcar and Cleveland | 2 | 1 | Serious |
| Wed 24 Sep 1986 | Middlesbrough | 2 | 2 | Slight |
| Wed 24 Sep 1986 | Middlesbrough | 2 | 1 | Slight |
| Fri 26 Sep 1986 | Redcar and Cleveland | 3 | 6 | Serious |
| Sun 28 Sep 1986 | Redcar and Cleveland | 2 | 2 | Serious |
| Mon 29 Sep 1986 | Redcar and Cleveland | 1 | 1 | Slight |
| Thu 2 Oct 1986 | Middlesbrough | 2 | 1 | Slight |
| Fri 10 Oct 1986 | Redcar and Cleveland | 1 | 1 | Serious |
| Fri 10 Oct 1986 | Redcar and Cleveland | 1 | 1 | Slight |
| Sat 11 Oct 1986 | Middlesbrough | 2 | 1 | Slight |
| Sat 11 Oct 1986 | Redcar and Cleveland | 4 | 2 | Slight |
| Wed 15 Oct 1986 | Middlesbrough | 1 | 1 | Serious |
| Wed 15 Oct 1986 | Redcar and Cleveland | 1 | 1 | Slight |
| Fri 17 Oct 1986 | Middlesbrough | 1 | 2 | Slight |
| Wed 22 Oct 1986 | Middlesbrough | 2 | 1 | Slight |
| Wed 22 Oct 1986 | Middlesbrough | 2 | 1 | Slight |
| Thu 23 Oct 1986 | Redcar and Cleveland | 2 | 1 | Serious |
| Sat 25 Oct 1986 | Middlesbrough | 2 | 1 | Slight |
| Mon 27 Oct 1986 | Middlesbrough | 2 | 1 | Slight |
| Tue 28 Oct 1986 | Redcar and Cleveland | 2 | 1 | Slight |
| Tue 28 Oct 1986 | Redcar and Cleveland | 1 | 1 | Slight |
| Thu 30 Oct 1986 | Redcar and Cleveland | 1 | 2 | Slight |
| Mon 3 Nov 1986 | Redcar and Cleveland | 2 | 1 | Slight |
| Mon 3 Nov 1986 | Redcar and Cleveland | 2 | 1 | Slight |
| Thu 6 Nov 1986 | Middlesbrough | 2 | 1 | Slight |
| Thu 13 Nov 1986 | Redcar and Cleveland | 2 | 1 | Slight |
| Thu 13 Nov 1986 | Redcar and Cleveland | 2 | 2 | Slight |
| Sat 15 Nov 1986 | Middlesbrough | 1 | 1 | Slight |
| Sun 16 Nov 1986 | Redcar and Cleveland | 1 | 1 | Serious |
| Tue 18 Nov 1986 | Redcar and Cleveland | 2 | 1 | Serious |
| Wed 19 Nov 1986 | Redcar and Cleveland | 2 | 4 | Slight |
| Thu 20 Nov 1986 | Redcar and Cleveland | 2 | 1 | Serious |
| Thu 20 Nov 1986 | Redcar and Cleveland | 2 | 1 | Slight |
| Mon 24 Nov 1986 | Redcar and Cleveland | 1 | 1 | Slight |
| Mon 24 Nov 1986 | Middlesbrough | 2 | 1 | Slight |
| Wed 26 Nov 1986 | Middlesbrough | 2 | 1 | Slight |
| Mon 1 Dec 1986 | Middlesbrough | 2 | 1 | Slight |
| Tue 2 Dec 1986 | Middlesbrough | 1 | 1 | Serious |
| Sun 7 Dec 1986 | Middlesbrough | 2 | 1 | Slight |
| Thu 11 Dec 1986 | Redcar and Cleveland | 2 | 1 | Serious |
| Sat 13 Dec 1986 | Redcar and Cleveland | 1 | 1 | Serious |
| Sun 14 Dec 1986 | Redcar and Cleveland | 1 | 1 | Slight |
| Tue 23 Dec 1986 | Redcar and Cleveland | 3 | 1 | Slight |
| Thu 25 Dec 1986 | Redcar and Cleveland | 1 | 2 | Serious |