Fatal
Serious
Slight
Uncategorised
| Date | Local Authority | Vehicles | Casualties | Severity |
|---|---|---|---|---|
| Tue 10 Jan 1984 | Middlesbrough | 2 | 1 | Slight |
| Mon 30 Jan 1984 | Redcar and Cleveland | 2 | 2 | Slight |
| Wed 1 Feb 1984 | Middlesbrough | 2 | 1 | Slight |
| Thu 2 Feb 1984 | Redcar and Cleveland | 1 | 1 | Slight |
| Wed 15 Feb 1984 | Middlesbrough | 2 | 1 | Slight |
| Fri 17 Feb 1984 | Middlesbrough | 1 | 1 | Slight |
| Fri 24 Feb 1984 | Redcar and Cleveland | 2 | 1 | Slight |
| Fri 24 Feb 1984 | Middlesbrough | 1 | 1 | Slight |
| Sat 10 Mar 1984 | Middlesbrough | 2 | 3 | Slight |
| Mon 12 Mar 1984 | Middlesbrough | 2 | 3 | Slight |
| Sun 18 Mar 1984 | Middlesbrough | 2 | 1 | Slight |
| Sun 25 Mar 1984 | Middlesbrough | 1 | 2 | Slight |
| Mon 26 Mar 1984 | Middlesbrough | 1 | 2 | Fatal |
| Wed 28 Mar 1984 | Middlesbrough | 2 | 2 | Serious |
| Mon 16 Apr 1984 | Middlesbrough | 2 | 1 | Slight |
| Thu 19 Apr 1984 | Redcar and Cleveland | 2 | 1 | Slight |
| Wed 25 Apr 1984 | Middlesbrough | 2 | 1 | Slight |
| Sun 29 Apr 1984 | Middlesbrough | 2 | 1 | Slight |
| Thu 3 May 1984 | Middlesbrough | 2 | 1 | Slight |
| Mon 7 May 1984 | Redcar and Cleveland | 2 | 1 | Slight |
| Fri 11 May 1984 | Middlesbrough | 1 | 1 | Slight |
| Sat 12 May 1984 | Redcar and Cleveland | 1 | 1 | Slight |
| Mon 21 May 1984 | Middlesbrough | 2 | 2 | Slight |
| Wed 23 May 1984 | Middlesbrough | 2 | 3 | Slight |
| Thu 24 May 1984 | Middlesbrough | 2 | 1 | Slight |
| Mon 4 Jun 1984 | Middlesbrough | 2 | 1 | Slight |
| Mon 11 Jun 1984 | Redcar and Cleveland | 1 | 1 | Slight |
| Thu 14 Jun 1984 | Redcar and Cleveland | 1 | 1 | Slight |
| Tue 19 Jun 1984 | Middlesbrough | 2 | 1 | Serious |
| Sat 23 Jun 1984 | Middlesbrough | 1 | 1 | Serious |
| Thu 28 Jun 1984 | Middlesbrough | 1 | 1 | Slight |
| Mon 2 Jul 1984 | Middlesbrough | 1 | 1 | Slight |
| Fri 6 Jul 1984 | Redcar and Cleveland | 1 | 1 | Serious |
| Sun 15 Jul 1984 | Middlesbrough | 1 | 1 | Serious |
| Wed 18 Jul 1984 | Redcar and Cleveland | 1 | 1 | Slight |
| Mon 23 Jul 1984 | Redcar and Cleveland | 2 | 1 | Slight |
| Wed 25 Jul 1984 | Redcar and Cleveland | 2 | 1 | Slight |
| Sat 28 Jul 1984 | Redcar and Cleveland | 2 | 1 | Slight |
| Mon 30 Jul 1984 | Redcar and Cleveland | 1 | 1 | Serious |
| Tue 31 Jul 1984 | Middlesbrough | 1 | 1 | Slight |
| Tue 7 Aug 1984 | Middlesbrough | 2 | 2 | Serious |
| Wed 8 Aug 1984 | Middlesbrough | 2 | 3 | Serious |
| Sat 11 Aug 1984 | Middlesbrough | 1 | 2 | Slight |
| Mon 13 Aug 1984 | Redcar and Cleveland | 2 | 1 | Serious |
| Thu 16 Aug 1984 | Redcar and Cleveland | 1 | 1 | Slight |
| Fri 31 Aug 1984 | Middlesbrough | 1 | 1 | Slight |
| Sat 1 Sep 1984 | Redcar and Cleveland | 3 | 1 | Slight |
| Mon 3 Sep 1984 | Redcar and Cleveland | 1 | 2 | Slight |
| Mon 3 Sep 1984 | Middlesbrough | 1 | 1 | Slight |
| Fri 21 Sep 1984 | Redcar and Cleveland | 2 | 2 | Serious |
| Fri 28 Sep 1984 | Redcar and Cleveland | 2 | 1 | Slight |
| Tue 16 Oct 1984 | Redcar and Cleveland | 1 | 1 | Slight |
| Tue 23 Oct 1984 | Middlesbrough | 2 | 1 | Slight |
| Tue 30 Oct 1984 | Middlesbrough | 1 | 1 | Serious |
| Wed 31 Oct 1984 | Redcar and Cleveland | 2 | 1 | Slight |
| Sun 4 Nov 1984 | Redcar and Cleveland | 2 | 1 | Slight |
| Tue 6 Nov 1984 | Middlesbrough | 2 | 1 | Slight |
| Wed 7 Nov 1984 | Redcar and Cleveland | 1 | 1 | Slight |
| Thu 15 Nov 1984 | Middlesbrough | 1 | 2 | Serious |
| Sun 18 Nov 1984 | Redcar and Cleveland | 1 | 1 | Serious |
| Sun 18 Nov 1984 | Middlesbrough | 2 | 1 | Slight |
| Thu 22 Nov 1984 | Redcar and Cleveland | 2 | 1 | Slight |
| Sun 25 Nov 1984 | Redcar and Cleveland | 2 | 1 | Slight |
| Wed 5 Dec 1984 | Stockton-on-Tees | 2 | 2 | Slight |
| Fri 7 Dec 1984 | Middlesbrough | 2 | 1 | Slight |
| Sat 8 Dec 1984 | Middlesbrough | 1 | 1 | Slight |
| Tue 11 Dec 1984 | Middlesbrough | 1 | 1 | Slight |
| Tue 11 Dec 1984 | Middlesbrough | 1 | 2 | Slight |
| Tue 18 Dec 1984 | Redcar and Cleveland | 2 | 1 | Serious |
| Tue 18 Dec 1984 | Redcar and Cleveland | 3 | 2 | Slight |
| Sun 23 Dec 1984 | Redcar and Cleveland | 2 | 1 | Slight |
| Sun 23 Dec 1984 | Middlesbrough | 2 | 2 | Slight |