Fatal
Serious
Slight
Uncategorised
| Date | Local Authority | Vehicles | Casualties | Severity |
|---|---|---|---|---|
| Sun 3 Jan 1999 | Stockton-on-Tees | 2 | 2 | Slight |
| Fri 8 Jan 1999 | Durham | 2 | 5 | Slight |
| Sat 16 Jan 1999 | Durham | 1 | 2 | Fatal |
| Sun 31 Jan 1999 | Stockton-on-Tees | 2 | 3 | Slight |
| Mon 15 Feb 1999 | Durham | 2 | 1 | Slight |
| Tue 16 Feb 1999 | Stockton-on-Tees | 2 | 1 | Serious |
| Tue 16 Feb 1999 | Stockton-on-Tees | 3 | 1 | Fatal |
| Thu 18 Feb 1999 | Stockton-on-Tees | 2 | 1 | Slight |
| Thu 18 Feb 1999 | Stockton-on-Tees | 1 | 1 | Slight |
| Thu 18 Feb 1999 | Durham | 1 | 4 | Slight |
| Sun 21 Feb 1999 | Sedgefield | 1 | 2 | Slight |
| Mon 1 Mar 1999 | Durham | 2 | 1 | Slight |
| Sun 7 Mar 1999 | Stockton-on-Tees | 2 | 4 | Slight |
| Tue 9 Mar 1999 | Durham | 2 | 4 | Slight |
| Wed 10 Mar 1999 | Stockton-on-Tees | 2 | 2 | Slight |
| Tue 16 Mar 1999 | Sedgefield | 2 | 5 | Serious |
| Fri 2 Apr 1999 | Sedgefield | 2 | 1 | Slight |
| Sat 10 Apr 1999 | Sedgefield | 1 | 1 | Slight |
| Sat 17 Apr 1999 | Stockton-on-Tees | 2 | 1 | Serious |
| Mon 26 Apr 1999 | Durham | 2 | 1 | Slight |
| Wed 28 Apr 1999 | Durham | 2 | 1 | Slight |
| Wed 28 Apr 1999 | Stockton-on-Tees | 2 | 3 | Slight |
| Wed 5 May 1999 | Sedgefield | 2 | 1 | Slight |
| Tue 11 May 1999 | Durham | 2 | 1 | Slight |
| Fri 25 Jun 1999 | Sedgefield | 1 | 2 | Serious |
| Sat 26 Jun 1999 | Stockton-on-Tees | 2 | 9 | Serious |
| Sun 11 Jul 1999 | Durham | 2 | 2 | Slight |
| Fri 16 Jul 1999 | Stockton-on-Tees | 2 | 1 | Slight |
| Sat 17 Jul 1999 | Sedgefield | 1 | 3 | Fatal |
| Sun 18 Jul 1999 | Sedgefield | 2 | 1 | Slight |
| Thu 22 Jul 1999 | Stockton-on-Tees | 2 | 1 | Slight |
| Fri 27 Aug 1999 | Stockton-on-Tees | 2 | 1 | Slight |
| Tue 14 Sep 1999 | Stockton-on-Tees | 2 | 1 | Slight |
| Thu 30 Sep 1999 | Durham | 1 | 3 | Slight |
| Sat 16 Oct 1999 | Durham | 2 | 4 | Serious |
| Tue 19 Oct 1999 | Stockton-on-Tees | 1 | 1 | Slight |
| Sun 31 Oct 1999 | Stockton-on-Tees | 1 | 1 | Serious |
| Mon 1 Nov 1999 | Stockton-on-Tees | 2 | 1 | Slight |
| Thu 4 Nov 1999 | Durham | 3 | 2 | Slight |
| Sat 6 Nov 1999 | Sedgefield | 2 | 2 | Slight |
| Sun 12 Dec 1999 | Durham | 2 | 1 | Slight |
| Sun 19 Dec 1999 | Stockton-on-Tees | 2 | 1 | Slight |
| Sun 19 Dec 1999 | Durham | 1 | 1 | Serious |
| Wed 22 Dec 1999 | Stockton-on-Tees | 1 | 1 | Slight |
| Thu 23 Dec 1999 | Stockton-on-Tees | 2 | 1 | Slight |