Fatal
Serious
Slight
Uncategorised
| Date | Local Authority | Vehicles | Casualties | Severity |
|---|---|---|---|---|
| Mon 12 Jan 1987 | Stockton-on-Tees | 1 | 1 | Slight |
| Fri 16 Jan 1987 | Darlington | 1 | 1 | Slight |
| Wed 4 Feb 1987 | Teesdale | 2 | 1 | Slight |
| Fri 13 Feb 1987 | Darlington | 2 | 1 | Slight |
| Fri 13 Feb 1987 | Stockton-on-Tees | 2 | 1 | Slight |
| Sat 21 Feb 1987 | Darlington | 2 | 1 | Serious |
| Sun 22 Feb 1987 | Stockton-on-Tees | 2 | 3 | Slight |
| Thu 26 Feb 1987 | Darlington | 2 | 1 | Slight |
| Sun 1 Mar 1987 | Darlington | 2 | 1 | Slight |
| Fri 6 Mar 1987 | Stockton-on-Tees | 1 | 1 | Slight |
| Sat 14 Mar 1987 | Darlington | 2 | 1 | Serious |
| Tue 17 Mar 1987 | Teesdale | 2 | 1 | Serious |
| Tue 24 Mar 1987 | Teesdale | 1 | 1 | Serious |
| Tue 24 Mar 1987 | Teesdale | 2 | 1 | Slight |
| Wed 25 Mar 1987 | Teesdale | 2 | 1 | Slight |
| Fri 27 Mar 1987 | Teesdale | 1 | 1 | Slight |
| Thu 2 Apr 1987 | Darlington | 2 | 1 | Slight |
| Fri 3 Apr 1987 | Stockton-on-Tees | 1 | 1 | Slight |
| Sun 5 Apr 1987 | Darlington | 1 | 1 | Slight |
| Mon 6 Apr 1987 | Stockton-on-Tees | 3 | 2 | Serious |
| Mon 6 Apr 1987 | Stockton-on-Tees | 1 | 1 | Serious |
| Tue 7 Apr 1987 | Stockton-on-Tees | 4 | 1 | Slight |
| Tue 7 Apr 1987 | Stockton-on-Tees | 3 | 1 | Slight |
| Thu 9 Apr 1987 | Darlington | 2 | 1 | Slight |
| Thu 9 Apr 1987 | Darlington | 1 | 1 | Fatal |
| Fri 10 Apr 1987 | Stockton-on-Tees | 1 | 3 | Slight |
| Sat 18 Apr 1987 | Teesdale | 1 | 1 | Serious |
| Wed 22 Apr 1987 | Darlington | 2 | 1 | Slight |
| Tue 5 May 1987 | Darlington | 2 | 2 | Slight |
| Wed 6 May 1987 | Darlington | 1 | 1 | Serious |
| Thu 7 May 1987 | Darlington | 1 | 1 | Serious |
| Thu 7 May 1987 | Darlington | 2 | 1 | Slight |
| Tue 12 May 1987 | Darlington | 1 | 1 | Serious |
| Sat 16 May 1987 | Teesdale | 1 | 1 | Slight |
| Mon 18 May 1987 | Teesdale | 2 | 1 | Slight |
| Fri 22 May 1987 | Darlington | 2 | 2 | Slight |
| Wed 27 May 1987 | Darlington | 1 | 1 | Slight |
| Thu 28 May 1987 | Darlington | 1 | 1 | Slight |
| Thu 28 May 1987 | Darlington | 1 | 2 | Serious |
| Tue 2 Jun 1987 | Teesdale | 1 | 1 | Slight |
| Sat 20 Jun 1987 | Darlington | 2 | 1 | Slight |
| Wed 24 Jun 1987 | Darlington | 2 | 1 | Slight |
| Fri 26 Jun 1987 | Darlington | 2 | 5 | Slight |
| Sat 27 Jun 1987 | Stockton-on-Tees | 2 | 2 | Slight |
| Sat 27 Jun 1987 | Teesdale | 2 | 1 | Slight |
| Sun 28 Jun 1987 | Stockton-on-Tees | 2 | 1 | Serious |
| Sat 4 Jul 1987 | Darlington | 2 | 1 | Slight |
| Tue 21 Jul 1987 | Darlington | 2 | 2 | Slight |
| Fri 24 Jul 1987 | Darlington | 2 | 2 | Slight |
| Mon 27 Jul 1987 | Darlington | 2 | 2 | Slight |
| Mon 3 Aug 1987 | Darlington | 2 | 3 | Slight |
| Fri 7 Aug 1987 | Teesdale | 2 | 1 | Slight |
| Mon 17 Aug 1987 | Stockton-on-Tees | 1 | 1 | Slight |
| Mon 17 Aug 1987 | Stockton-on-Tees | 2 | 1 | Slight |
| Sat 29 Aug 1987 | Darlington | 2 | 2 | Slight |
| Sat 5 Sep 1987 | Stockton-on-Tees | 1 | 5 | Slight |
| Sun 6 Sep 1987 | Stockton-on-Tees | 1 | 2 | Serious |
| Sun 6 Sep 1987 | Teesdale | 2 | 1 | Slight |
| Tue 8 Sep 1987 | Darlington | 2 | 1 | Slight |
| Wed 23 Sep 1987 | Stockton-on-Tees | 2 | 1 | Slight |
| Wed 23 Sep 1987 | Darlington | 2 | 1 | Slight |
| Sat 3 Oct 1987 | Stockton-on-Tees | 2 | 3 | Slight |
| Sun 4 Oct 1987 | Darlington | 2 | 2 | Slight |
| Sun 4 Oct 1987 | Teesdale | 4 | 1 | Slight |
| Mon 5 Oct 1987 | Stockton-on-Tees | 1 | 1 | Serious |
| Wed 14 Oct 1987 | Darlington | 1 | 1 | Serious |
| Wed 21 Oct 1987 | Oldham | 2 | 1 | Slight |
| Sun 25 Oct 1987 | Stockton-on-Tees | 1 | 4 | Slight |
| Wed 28 Oct 1987 | Stockton-on-Tees | 2 | 1 | Slight |
| Thu 29 Oct 1987 | Stockton-on-Tees | 2 | 1 | Slight |
| Sat 31 Oct 1987 | Stockton-on-Tees | 1 | 1 | Serious |
| Tue 3 Nov 1987 | Stockton-on-Tees | 2 | 1 | Slight |
| Sat 21 Nov 1987 | Stockton-on-Tees | 2 | 1 | Fatal |
| Mon 30 Nov 1987 | Darlington | 1 | 1 | Slight |
| Sun 6 Dec 1987 | Darlington | 2 | 4 | Slight |
| Tue 8 Dec 1987 | Stockton-on-Tees | 1 | 1 | Slight |
| Tue 8 Dec 1987 | Darlington | 1 | 1 | Slight |
| Thu 10 Dec 1987 | Teesdale | 2 | 2 | Slight |
| Fri 11 Dec 1987 | Teesdale | 2 | 1 | Slight |
| Thu 17 Dec 1987 | Darlington | 2 | 1 | Slight |
| Sat 19 Dec 1987 | Darlington | 1 | 1 | Serious |
| Thu 31 Dec 1987 | Teesdale | 1 | 1 | Slight |