Fatal
Serious
Slight
Uncategorised
| Date | Local Authority | Vehicles | Casualties | Severity |
|---|---|---|---|---|
| Wed 20 Jan 1999 | Middlesbrough | 3 | 1 | Slight |
| Fri 22 Jan 1999 | Stockton-on-Tees | 2 | 2 | Slight |
| Sun 24 Jan 1999 | Stockton-on-Tees | 2 | 1 | Slight |
| Mon 15 Mar 1999 | Stockton-on-Tees | 1 | 1 | Slight |
| Tue 6 Apr 1999 | Stockton-on-Tees | 2 | 1 | Slight |
| Sat 10 Apr 1999 | Stockton-on-Tees | 1 | 1 | Slight |
| Wed 5 May 1999 | Stockton-on-Tees | 2 | 1 | Slight |
| Tue 11 May 1999 | Middlesbrough | 2 | 2 | Slight |
| Sat 15 May 1999 | Stockton-on-Tees | 1 | 1 | Slight |
| Mon 24 May 1999 | Stockton-on-Tees | 2 | 3 | Slight |
| Wed 2 Jun 1999 | Stockton-on-Tees | 2 | 2 | Slight |
| Thu 3 Jun 1999 | Middlesbrough | 2 | 1 | Slight |
| Wed 21 Jul 1999 | Stockton-on-Tees | 2 | 3 | Serious |
| Fri 6 Aug 1999 | Middlesbrough | 2 | 1 | Slight |
| Sat 21 Aug 1999 | Stockton-on-Tees | 2 | 1 | Slight |
| Thu 9 Sep 1999 | Middlesbrough | 1 | 1 | Slight |
| Tue 28 Sep 1999 | Stockton-on-Tees | 3 | 3 | Slight |
| Thu 30 Sep 1999 | Stockton-on-Tees | 2 | 1 | Slight |
| Mon 4 Oct 1999 | Middlesbrough | 2 | 1 | Slight |
| Sat 23 Oct 1999 | Stockton-on-Tees | 2 | 1 | Slight |
| Fri 5 Nov 1999 | Middlesbrough | 2 | 1 | Slight |
| Sun 7 Nov 1999 | Middlesbrough | 1 | 1 | Slight |
| Tue 9 Nov 1999 | Middlesbrough | 2 | 1 | Slight |
| Wed 17 Nov 1999 | Stockton-on-Tees | 2 | 1 | Slight |
| Thu 18 Nov 1999 | Stockton-on-Tees | 2 | 1 | Slight |
| Mon 22 Nov 1999 | Stockton-on-Tees | 2 | 3 | Slight |
| Sat 27 Nov 1999 | Stockton-on-Tees | 1 | 1 | Slight |
| Sun 19 Dec 1999 | Stockton-on-Tees | 2 | 2 | Slight |
| Mon 20 Dec 1999 | Stockton-on-Tees | 1 | 1 | Slight |