Engineers have begun preliminary work on a scheme to replace a level crossing with a bridge.
Network Rail workers were in Tallington this week to carry out an assessment of the area.
The company wants to close the level crossing in the village and build a bridge over the railway line.
The bridge would be joined to the A1175 by two link roads.
Network Rail is working with Lincolnshire County Council on the project. Former Tallington parish councillor Ken Otter has been campaigning for the bridge for a number of years.
A Network Rail spokesman said: “We are looking at whether a change to the current set up is appropriate and required at this stage.
“Lincolnshire County Council will be looking at it from a highways point of view and we are looking at it from a railway point of view.”