sentences:  The A1 trunk road at Colsterworth was redeveloped in 2010, when Colsterworth roundabout was removed and a road bridge over the A1 added for local traffic, to address safety and traffic congestion concerns.The village is on the bus route between Grantham and Witham.Although the oldest dwellings are of limestone, brick houses of the 1920s and 1930s are interposed amongst them.