An extension to the east, heading north from Charles City to State Route 39 (now U.S. Route 60) at Providence Forge, was added in 1926. In the 1928 renumbering of state roads, this was designated as State Route 413, since a new alignment of SR 41, heading east from Charles City toward Williamsburg for eight miles (13 km), was added to the state highway system, as was a 4.5-mile (7.2 km) piece at the other end, heading west from State Route 510 (now State Route 31). A further 3.50 miles (5.63 km) from the west and 2.80 miles (4.51 km) from the east were added in 1930 and 1931, and, in 1932, the route was completed from Richmond to Williamsburg, with 3.00 miles (4.83 km) from the west and 1.70 miles (2.74 km) from the east.