Fatal
Serious
Slight
Uncategorised
| Date | Local Authority | Vehicles | Casualties | Severity |
|---|---|---|---|---|
| Sun 3 Jan 1999 | Eden | 2 | 8 | Fatal |
| Sun 3 Jan 1999 | Eden | 3 | 3 | Serious |
| Tue 5 Jan 1999 | Darlington | 3 | 2 | Slight |
| Tue 5 Jan 1999 | Middlesbrough | 2 | 1 | Slight |
| Wed 6 Jan 1999 | Middlesbrough | 1 | 1 | Fatal |
| Sat 9 Jan 1999 | Eden | 1 | 1 | Slight |
| Sat 9 Jan 1999 | Allerdale | 2 | 2 | Slight |
| Sun 17 Jan 1999 | Eden | 1 | 1 | Slight |
| Mon 18 Jan 1999 | Eden | 3 | 3 | Fatal |
| Tue 19 Jan 1999 | Eden | 3 | 1 | Slight |
| Tue 19 Jan 1999 | Richmondshire | 2 | 1 | Slight |
| Thu 21 Jan 1999 | Allerdale | 3 | 1 | Slight |
| Mon 25 Jan 1999 | Allerdale | 2 | 1 | Slight |
| Thu 28 Jan 1999 | Charnwood | 2 | 1 | Serious |
| Thu 28 Jan 1999 | Darlington | 2 | 1 | Slight |
| Sun 31 Jan 1999 | Darlington | 2 | 1 | Slight |
| Tue 2 Feb 1999 | Darlington | 2 | 1 | Slight |
| Mon 8 Feb 1999 | Allerdale | 2 | 1 | Slight |
| Wed 10 Feb 1999 | Allerdale | 2 | 1 | Slight |
| Wed 10 Feb 1999 | Eden | 2 | 1 | Slight |
| Wed 10 Feb 1999 | Eden | 2 | 2 | Fatal |
| Sat 13 Feb 1999 | Copeland | 2 | 1 | Slight |
| Sun 14 Feb 1999 | Allerdale | 1 | 1 | Slight |
| Sun 14 Feb 1999 | Allerdale | 1 | 3 | Slight |
| Sun 14 Feb 1999 | Allerdale | 1 | 1 | Slight |
| Tue 16 Feb 1999 | Stockton-on-Tees | 2 | 3 | Slight |
| Thu 18 Feb 1999 | Eden | 1 | 1 | Slight |
| Sun 21 Feb 1999 | Middlesbrough | 3 | 4 | Slight |
| Tue 23 Feb 1999 | Allerdale | 1 | 1 | Slight |
| Tue 23 Feb 1999 | Allerdale | 1 | 1 | Slight |
| Thu 25 Feb 1999 | Eden | 2 | 2 | Serious |
| Sat 27 Feb 1999 | Allerdale | 3 | 2 | Slight |
| Sun 28 Feb 1999 | Eden | 1 | 4 | Fatal |
| Sun 28 Feb 1999 | Middlesbrough | 1 | 1 | Slight |
| Wed 3 Mar 1999 | Allerdale | 2 | 1 | Slight |
| Thu 4 Mar 1999 | Eden | 2 | 4 | Fatal |
| Sat 6 Mar 1999 | Allerdale | 1 | 1 | Slight |
| Sun 7 Mar 1999 | Eden | 2 | 1 | Slight |
| Mon 8 Mar 1999 | Allerdale | 2 | 2 | Slight |
| Tue 9 Mar 1999 | Eden | 2 | 1 | Slight |
| Wed 10 Mar 1999 | Eden | 4 | 1 | Slight |
| Fri 12 Mar 1999 | Richmondshire | 4 | 2 | Serious |
| Wed 17 Mar 1999 | Eden | 2 | 1 | Fatal |
| Sat 20 Mar 1999 | Middlesbrough | 2 | 1 | Slight |
| Tue 23 Mar 1999 | Allerdale | 3 | 1 | Slight |
| Tue 23 Mar 1999 | Eden | 1 | 1 | Slight |
| Thu 1 Apr 1999 | Eden | 3 | 1 | Slight |
| Fri 2 Apr 1999 | Middlesbrough | 1 | 1 | Slight |
| Sun 4 Apr 1999 | Eden | 2 | 2 | Slight |
| Mon 5 Apr 1999 | Middlesbrough | 1 | 1 | Slight |
| Mon 5 Apr 1999 | Eden | 2 | 1 | Slight |
| Wed 7 Apr 1999 | Eden | 2 | 1 | Serious |
| Thu 8 Apr 1999 | Richmondshire | 1 | 1 | Slight |
| Fri 9 Apr 1999 | Teesdale | 1 | 1 | Slight |
| Sat 10 Apr 1999 | Eden | 2 | 1 | Serious |
| Sat 10 Apr 1999 | Eden | 2 | 1 | Slight |
| Mon 12 Apr 1999 | Richmondshire | 1 | 1 | Serious |
| Mon 12 Apr 1999 | Redcar and Cleveland | 2 | 1 | Slight |
| Tue 13 Apr 1999 | Richmondshire | 2 | 2 | Serious |
| Wed 14 Apr 1999 | Stockton-on-Tees | 2 | 2 | Slight |
| Thu 15 Apr 1999 | Allerdale | 2 | 2 | Slight |
| Thu 22 Apr 1999 | Eden | 3 | 1 | Slight |
| Sun 25 Apr 1999 | Copeland | 1 | 1 | Serious |
| Mon 26 Apr 1999 | Darlington | 2 | 1 | Slight |
| Tue 27 Apr 1999 | Stockton-on-Tees | 1 | 1 | Slight |
| Wed 28 Apr 1999 | Eden | 1 | 1 | Slight |
| Tue 4 May 1999 | Allerdale | 2 | 1 | Slight |
| Thu 6 May 1999 | Middlesbrough | 2 | 2 | Slight |
| Fri 7 May 1999 | Allerdale | 2 | 1 | Slight |
| Fri 7 May 1999 | Allerdale | 2 | 2 | Slight |
| Sat 8 May 1999 | Allerdale | 3 | 2 | Slight |
| Mon 10 May 1999 | Middlesbrough | 2 | 1 | Slight |
| Thu 13 May 1999 | Allerdale | 1 | 1 | Slight |
| Thu 13 May 1999 | Allerdale | 2 | 2 | Serious |
| Sat 15 May 1999 | Richmondshire | 2 | 2 | Serious |
| Fri 21 May 1999 | Middlesbrough | 2 | 1 | Serious |
| Fri 28 May 1999 | Allerdale | 2 | 2 | Slight |
| Sat 29 May 1999 | Eden | 4 | 9 | Serious |
| Sat 29 May 1999 | Allerdale | 3 | 1 | Slight |
| Thu 3 Jun 1999 | Eden | 2 | 1 | Slight |
| Mon 7 Jun 1999 | Allerdale | 2 | 1 | Slight |
| Sat 12 Jun 1999 | Allerdale | 2 | 3 | Slight |
| Sat 12 Jun 1999 | Eden | 2 | 1 | Slight |
| Sun 13 Jun 1999 | Middlesbrough | 1 | 1 | Slight |
| Mon 14 Jun 1999 | Stockton-on-Tees | 2 | 1 | Slight |
| Mon 14 Jun 1999 | Stockton-on-Tees | 2 | 1 | Slight |
| Tue 15 Jun 1999 | Middlesbrough | 4 | 2 | Slight |
| Thu 17 Jun 1999 | Eden | 3 | 1 | Serious |
| Fri 18 Jun 1999 | Richmondshire | 3 | 1 | Fatal |
| Fri 18 Jun 1999 | Middlesbrough | 2 | 2 | Slight |
| Sat 19 Jun 1999 | Allerdale | 4 | 4 | Serious |
| Mon 21 Jun 1999 | Middlesbrough | 5 | 1 | Slight |
| Tue 22 Jun 1999 | Allerdale | 2 | 1 | Slight |
| Thu 24 Jun 1999 | Middlesbrough | 2 | 1 | Slight |
| Thu 1 Jul 1999 | Middlesbrough | 1 | 1 | Slight |
| Thu 1 Jul 1999 | Allerdale | 2 | 1 | Slight |
| Sat 3 Jul 1999 | Teesdale | 1 | 2 | Serious |
| Wed 7 Jul 1999 | Eden | 2 | 2 | Slight |
| Thu 8 Jul 1999 | Allerdale | 2 | 1 | Slight |
| Thu 8 Jul 1999 | Allerdale | 2 | 1 | Slight |
| Tue 13 Jul 1999 | Darlington | 2 | 1 | Slight |
| Wed 14 Jul 1999 | Eden | 2 | 2 | Slight |
| Thu 15 Jul 1999 | Middlesbrough | 2 | 1 | Slight |
| Sat 17 Jul 1999 | Allerdale | 5 | 2 | Slight |
| Mon 19 Jul 1999 | Stockton-on-Tees | 2 | 1 | Slight |
| Mon 19 Jul 1999 | Middlesbrough | 2 | 1 | Slight |
| Tue 20 Jul 1999 | Richmondshire | 1 | 2 | Serious |
| Tue 20 Jul 1999 | Darlington | 2 | 1 | Slight |
| Wed 21 Jul 1999 | Stockton-on-Tees | 2 | 2 | Slight |
| Wed 21 Jul 1999 | Stockton-on-Tees | 2 | 3 | Serious |
| Fri 23 Jul 1999 | Stockton-on-Tees | 2 | 2 | Serious |
| Tue 27 Jul 1999 | Teesdale | 2 | 7 | Fatal |
| Fri 30 Jul 1999 | Middlesbrough | 2 | 2 | Slight |
| Fri 30 Jul 1999 | Teesdale | 2 | 3 | Slight |
| Sat 31 Jul 1999 | Richmondshire | 2 | 1 | Slight |
| Sun 1 Aug 1999 | Eden | 2 | 1 | Serious |
| Mon 2 Aug 1999 | Stockton-on-Tees | 4 | 1 | Slight |
| Tue 3 Aug 1999 | Eden | 2 | 1 | Slight |
| Tue 3 Aug 1999 | Eden | 2 | 2 | Slight |
| Tue 3 Aug 1999 | Eden | 2 | 2 | Slight |
| Wed 4 Aug 1999 | Eden | 2 | 2 | Slight |
| Wed 4 Aug 1999 | Eden | 2 | 1 | Slight |
| Wed 4 Aug 1999 | Eden | 2 | 1 | Slight |
| Wed 4 Aug 1999 | Eden | 2 | 3 | Slight |
| Sat 7 Aug 1999 | Teesdale | 3 | 5 | Serious |
| Tue 10 Aug 1999 | Richmondshire | 1 | 2 | Serious |
| Wed 11 Aug 1999 | Stockton-on-Tees | 2 | 3 | Slight |
| Thu 12 Aug 1999 | Richmondshire | 2 | 2 | Slight |
| Mon 16 Aug 1999 | Allerdale | 2 | 3 | Slight |
| Wed 18 Aug 1999 | Middlesbrough | 2 | 1 | Slight |
| Fri 20 Aug 1999 | Eden | 3 | 4 | Serious |
| Sun 22 Aug 1999 | Allerdale | 1 | 1 | Slight |
| Tue 24 Aug 1999 | Eden | 4 | 1 | Slight |
| Thu 26 Aug 1999 | Middlesbrough | 2 | 1 | Slight |
| Mon 30 Aug 1999 | Eden | 2 | 1 | Slight |
| Tue 31 Aug 1999 | Eden | 1 | 1 | Slight |
| Sat 4 Sep 1999 | Richmondshire | 2 | 1 | Serious |
| Sat 4 Sep 1999 | Stockton-on-Tees | 2 | 1 | Serious |
| Mon 6 Sep 1999 | Richmondshire | 2 | 1 | Slight |
| Tue 7 Sep 1999 | Middlesbrough | 3 | 1 | Slight |
| Tue 7 Sep 1999 | Allerdale | 2 | 1 | Slight |
| Wed 8 Sep 1999 | Redcar and Cleveland | 1 | 2 | Slight |
| Thu 9 Sep 1999 | Richmondshire | 3 | 1 | Slight |
| Fri 10 Sep 1999 | Teesdale | 1 | 1 | Slight |
| Sun 12 Sep 1999 | Teesdale | 2 | 1 | Serious |
| Mon 13 Sep 1999 | Eden | 1 | 1 | Slight |
| Tue 14 Sep 1999 | Teesdale | 3 | 1 | Slight |
| Tue 14 Sep 1999 | Darlington | 2 | 1 | Slight |
| Thu 16 Sep 1999 | Middlesbrough | 2 | 2 | Slight |
| Fri 17 Sep 1999 | Richmondshire | 3 | 1 | Slight |
| Fri 17 Sep 1999 | Eden | 2 | 1 | Slight |
| Sat 18 Sep 1999 | Allerdale | 2 | 1 | Slight |
| Sun 19 Sep 1999 | Allerdale | 2 | 2 | Slight |
| Mon 20 Sep 1999 | Eden | 1 | 1 | Slight |
| Mon 20 Sep 1999 | Middlesbrough | 2 | 1 | Slight |
| Mon 20 Sep 1999 | Stockton-on-Tees | 3 | 4 | Slight |
| Mon 20 Sep 1999 | Middlesbrough | 3 | 1 | Slight |
| Tue 21 Sep 1999 | Stockton-on-Tees | 2 | 1 | Slight |
| Tue 21 Sep 1999 | Bedford | 2 | 1 | Slight |
| Tue 21 Sep 1999 | Allerdale | 2 | 1 | Slight |
| Thu 23 Sep 1999 | Eden | 3 | 1 | Slight |
| Thu 23 Sep 1999 | Allerdale | 1 | 3 | Slight |
| Sat 25 Sep 1999 | Eden | 2 | 3 | Serious |
| Sun 26 Sep 1999 | Eden | 2 | 1 | Slight |
| Sun 26 Sep 1999 | Eden | 2 | 1 | Slight |
| Mon 27 Sep 1999 | Middlesbrough | 2 | 1 | Slight |
| Mon 27 Sep 1999 | Middlesbrough | 2 | 2 | Slight |
| Tue 28 Sep 1999 | Middlesbrough | 1 | 1 | Slight |
| Tue 28 Sep 1999 | Darlington | 2 | 1 | Serious |
| Tue 28 Sep 1999 | Eden | 2 | 2 | Serious |
| Wed 29 Sep 1999 | Eden | 2 | 2 | Slight |
| Fri 1 Oct 1999 | Middlesbrough | 2 | 1 | Slight |
| Fri 1 Oct 1999 | Redcar and Cleveland | 2 | 1 | Slight |
| Fri 1 Oct 1999 | Allerdale | 2 | 2 | Slight |
| Fri 1 Oct 1999 | Middlesbrough | 2 | 1 | Slight |
| Fri 1 Oct 1999 | Middlesbrough | 2 | 1 | Slight |
| Sun 3 Oct 1999 | Middlesbrough | 1 | 1 | Slight |
| Tue 5 Oct 1999 | Carlisle | 2 | 1 | Slight |
| Wed 6 Oct 1999 | Middlesbrough | 2 | 1 | Slight |
| Thu 7 Oct 1999 | Eden | 2 | 1 | Slight |
| Fri 8 Oct 1999 | Richmondshire | 2 | 2 | Slight |
| Sun 10 Oct 1999 | Eden | 4 | 2 | Slight |
| Sat 16 Oct 1999 | Eden | 1 | 1 | Slight |
| Tue 19 Oct 1999 | Eden | 2 | 1 | Slight |
| Thu 21 Oct 1999 | Eden | 1 | 1 | Slight |
| Sat 23 Oct 1999 | Darlington | 2 | 3 | Slight |
| Sat 23 Oct 1999 | Eden | 3 | 3 | Serious |
| Sun 24 Oct 1999 | Middlesbrough | 2 | 3 | Slight |
| Sun 24 Oct 1999 | Eden | 1 | 2 | Serious |
| Mon 25 Oct 1999 | Eden | 2 | 1 | Serious |
| Tue 26 Oct 1999 | Eden | 1 | 1 | Slight |
| Tue 26 Oct 1999 | Richmondshire | 1 | 1 | Serious |
| Thu 28 Oct 1999 | Richmondshire | 2 | 1 | Slight |
| Fri 29 Oct 1999 | Richmondshire | 2 | 1 | Slight |
| Mon 1 Nov 1999 | Eden | 1 | 3 | Serious |
| Wed 3 Nov 1999 | Darlington | 2 | 4 | Fatal |
| Fri 5 Nov 1999 | Eden | 2 | 1 | Slight |
| Fri 5 Nov 1999 | Stockton-on-Tees | 2 | 1 | Slight |
| Sat 6 Nov 1999 | Middlesbrough | 2 | 1 | Slight |
| Mon 8 Nov 1999 | Middlesbrough | 3 | 1 | Slight |
| Mon 8 Nov 1999 | Stockton-on-Tees | 2 | 1 | Slight |
| Wed 10 Nov 1999 | Eden | 3 | 2 | Slight |
| Sun 14 Nov 1999 | Stockton-on-Tees | 3 | 2 | Slight |
| Tue 16 Nov 1999 | Stockton-on-Tees | 2 | 1 | Slight |
| Sat 20 Nov 1999 | Allerdale | 2 | 2 | Slight |
| Mon 22 Nov 1999 | Allerdale | 2 | 1 | Slight |
| Wed 24 Nov 1999 | Middlesbrough | 2 | 1 | Slight |
| Mon 29 Nov 1999 | Middlesbrough | 2 | 1 | Slight |
| Mon 29 Nov 1999 | Richmondshire | 3 | 1 | Slight |
| Tue 30 Nov 1999 | Eden | 2 | 1 | Slight |
| Tue 30 Nov 1999 | Eden | 3 | 2 | Serious |
| Thu 2 Dec 1999 | Teesdale | 2 | 2 | Slight |
| Fri 3 Dec 1999 | Eden | 2 | 1 | Slight |
| Mon 6 Dec 1999 | Darlington | 2 | 1 | Slight |
| Mon 6 Dec 1999 | Eden | 2 | 1 | Slight |
| Mon 6 Dec 1999 | Eden | 2 | 1 | Slight |
| Tue 7 Dec 1999 | Allerdale | 2 | 1 | Slight |
| Tue 7 Dec 1999 | Allerdale | 2 | 1 | Slight |
| Wed 8 Dec 1999 | Middlesbrough | 2 | 1 | Slight |
| Wed 8 Dec 1999 | Allerdale | 1 | 2 | Slight |
| Thu 9 Dec 1999 | Stockton-on-Tees | 3 | 2 | Serious |
| Fri 10 Dec 1999 | Eden | 2 | 3 | Slight |
| Sat 11 Dec 1999 | Richmondshire | 2 | 1 | Slight |
| Mon 13 Dec 1999 | Eden | 2 | 2 | Slight |
| Wed 15 Dec 1999 | Allerdale | 1 | 1 | Slight |
| Wed 15 Dec 1999 | Allerdale | 2 | 2 | Slight |
| Thu 16 Dec 1999 | Eden | 3 | 1 | Serious |
| Thu 16 Dec 1999 | Allerdale | 2 | 2 | Slight |
| Fri 17 Dec 1999 | Eden | 2 | 2 | Slight |
| Fri 17 Dec 1999 | Allerdale | 2 | 1 | Slight |
| Wed 22 Dec 1999 | Allerdale | 2 | 1 | Slight |
| Wed 22 Dec 1999 | Darlington | 3 | 1 | Slight |
| Wed 22 Dec 1999 | Darlington | 2 | 4 | Serious |
| Fri 24 Dec 1999 | Allerdale | 2 | 5 | Slight |
| Tue 28 Dec 1999 | Stockton-on-Tees | 2 | 2 | Slight |
| Wed 29 Dec 1999 | Allerdale | 2 | 4 | Fatal |