Threekingham Bar is the name given to interception of the A52 (Grantham to Boston) and A15 (Peterborough to Lincoln and Hull) roads, 1 mile (1.6 km) to the west of the village of Threekingham, in Lincolnshire, England[2]
The interception is arranged as a small modern roundabout. Both roads are single carriageway. The countryside is undulating, and the A52 descends into a valley to the west. The location is rural, with no human habitation.
The name dates it to the turnpike era.[according to whom?] The A52 approximately follows the route of Salters Way.[clarification needed]
An 18th-century mile post is in the verge, 220 yards (200 m) south from the roundabout.
52°55′06″N 0°24′42″W / 52.91847°N 0.41155°W