Fatal
Serious
Slight
Uncategorised
| Date | Local Authority | Vehicles | Casualties | Severity |
|---|---|---|---|---|
| Sun 5 Jan 1986 | North Kesteven | 1 | 1 | Serious |
| Fri 10 Jan 1986 | North Kesteven | 2 | 1 | Slight |
| Thu 16 Jan 1986 | East Lindsey | 2 | 1 | Slight |
| Fri 17 Jan 1986 | North Kesteven | 3 | 3 | Serious |
| Thu 30 Jan 1986 | East Lindsey | 2 | 1 | Serious |
| Thu 13 Feb 1986 | North Kesteven | 1 | 1 | Slight |
| Mon 24 Feb 1986 | North Kesteven | 2 | 1 | Slight |
| Fri 28 Feb 1986 | North Kesteven | 2 | 1 | Slight |
| Sat 1 Mar 1986 | East Lindsey | 1 | 1 | Slight |
| Mon 3 Mar 1986 | North Kesteven | 2 | 1 | Slight |
| Thu 6 Mar 1986 | East Lindsey | 2 | 1 | Slight |
| Fri 7 Mar 1986 | North Kesteven | 3 | 3 | Serious |
| Fri 7 Mar 1986 | East Lindsey | 2 | 6 | Serious |
| Tue 18 Mar 1986 | North Kesteven | 1 | 1 | Serious |
| Wed 19 Mar 1986 | North Kesteven | 2 | 1 | Slight |
| Fri 18 Apr 1986 | North Kesteven | 2 | 1 | Slight |
| Sun 20 Apr 1986 | North Kesteven | 3 | 2 | Serious |
| Mon 28 Apr 1986 | South Kesteven | 2 | 1 | Slight |
| Wed 30 Apr 1986 | North Kesteven | 3 | 2 | Serious |
| Mon 5 May 1986 | East Lindsey | 1 | 2 | Slight |
| Mon 5 May 1986 | North Kesteven | 2 | 2 | Slight |
| Tue 6 May 1986 | East Lindsey | 2 | 1 | Slight |
| Sat 10 May 1986 | North Kesteven | 2 | 1 | Slight |
| Mon 19 May 1986 | North Kesteven | 2 | 2 | Slight |
| Mon 19 May 1986 | North Kesteven | 1 | 1 | Slight |
| Thu 22 May 1986 | South Kesteven | 2 | 2 | Slight |
| Fri 23 May 1986 | South Kesteven | 2 | 2 | Serious |
| Wed 28 May 1986 | East Lindsey | 2 | 6 | Fatal |
| Fri 27 Jun 1986 | East Lindsey | 1 | 2 | Slight |
| Thu 3 Jul 1986 | East Lindsey | 1 | 1 | Slight |
| Fri 4 Jul 1986 | East Lindsey | 1 | 1 | Slight |
| Tue 8 Jul 1986 | North Kesteven | 2 | 1 | Slight |
| Fri 18 Jul 1986 | South Kesteven | 2 | 1 | Slight |
| Fri 25 Jul 1986 | North Kesteven | 2 | 1 | Slight |
| Mon 28 Jul 1986 | East Lindsey | 2 | 1 | Slight |
| Fri 1 Aug 1986 | East Lindsey | 1 | 1 | Slight |
| Sat 2 Aug 1986 | East Lindsey | 3 | 1 | Slight |
| Wed 6 Aug 1986 | South Kesteven | 2 | 2 | Slight |
| Sun 10 Aug 1986 | North Kesteven | 2 | 1 | Serious |
| Sat 16 Aug 1986 | East Lindsey | 1 | 4 | Slight |
| Mon 18 Aug 1986 | North Kesteven | 1 | 1 | Slight |
| Tue 19 Aug 1986 | North Kesteven | 1 | 1 | Slight |
| Fri 22 Aug 1986 | East Lindsey | 1 | 1 | Serious |
| Sat 23 Aug 1986 | North Kesteven | 1 | 1 | Slight |
| Thu 28 Aug 1986 | North Kesteven | 2 | 1 | Slight |
| Wed 3 Sep 1986 | East Lindsey | 2 | 1 | Slight |
| Sat 13 Sep 1986 | East Lindsey | 3 | 1 | Slight |
| Thu 18 Sep 1986 | North Kesteven | 1 | 1 | Serious |
| Wed 24 Sep 1986 | North Kesteven | 2 | 1 | Slight |
| Sun 5 Oct 1986 | North Kesteven | 1 | 2 | Slight |
| Thu 9 Oct 1986 | North Kesteven | 1 | 1 | Slight |
| Sat 11 Oct 1986 | North Kesteven | 2 | 1 | Slight |
| Fri 17 Oct 1986 | North Kesteven | 2 | 2 | Slight |
| Sun 19 Oct 1986 | South Kesteven | 2 | 3 | Fatal |
| Tue 21 Oct 1986 | North Kesteven | 1 | 1 | Fatal |
| Fri 24 Oct 1986 | East Lindsey | 2 | 1 | Serious |
| Thu 30 Oct 1986 | North Kesteven | 2 | 1 | Slight |
| Sun 9 Nov 1986 | North Kesteven | 1 | 1 | Slight |
| Mon 17 Nov 1986 | East Lindsey | 2 | 2 | Slight |
| Mon 17 Nov 1986 | East Lindsey | 2 | 1 | Slight |
| Sat 22 Nov 1986 | North Kesteven | 2 | 3 | Serious |
| Mon 24 Nov 1986 | North Kesteven | 2 | 1 | Slight |
| Wed 26 Nov 1986 | North Kesteven | 2 | 2 | Serious |
| Wed 26 Nov 1986 | North Kesteven | 2 | 1 | Slight |
| Fri 28 Nov 1986 | North Kesteven | 1 | 1 | Serious |
| Tue 2 Dec 1986 | North Kesteven | 2 | 3 | Serious |
| Thu 4 Dec 1986 | East Lindsey | 3 | 1 | Serious |
| Thu 4 Dec 1986 | North Kesteven | 2 | 1 | Fatal |
| Fri 12 Dec 1986 | East Lindsey | 2 | 1 | Slight |
| Fri 12 Dec 1986 | North Kesteven | 2 | 1 | Serious |
| Fri 19 Dec 1986 | North Kesteven | 2 | 4 | Serious |
| Sat 20 Dec 1986 | North Kesteven | 1 | 1 | Slight |
| Sat 27 Dec 1986 | North Kesteven | 1 | 2 | Slight |
| Sun 28 Dec 1986 | North Kesteven | 1 | 1 | Slight |