A DAMAGED listed monument is one of a number of heritage structures which are deemed to be at risk.
The historic milestone at Dunsby has been broken in half and part of it is lying in the ditch.
Volunteers for The Heritage Trust of Lincolnshire are looking at the state of 9,000 sites across the county.
The trust has received a £304,000 grant from the Heritage Lottery fund to survey structures in the county, including the milestone.
The Grade II listed milestone is a late 19th century stone with cast iron plaque.
Heritage at Risk senior project officer Dr Matthew Godfrey said that the project will be looking at the state of the monuments and developing a strategy to conserve these structures during the three year project.
Dr Godfrey said: “The picture for South Kesteven is generally very good and out of the 815 listed buildings surveyed so far only 21 or 2.5 per cent have been identified as at risk.
“The total number of listed buildings in South Kesteven is 1,984.”
The project has also received funding from Lincolnshire County Council, English Heritage, district councils and the Lincolnshire Wolds Countryside Service.