Virginia State Route 13 (SR 13) is a primary state highway in the U.S. state of Virginia. Known as Old Buckingham Road, the state highway runs 24.08 miles (38.75 km) from U.S. Route 60 and SR 45 in Cumberland east to US 60 in Plain View. SR 13 parallels US 60 to the south through eastern Cumberland County and western Powhatan County and passes through the latter county's seat of Powhatan. The state highway is the only state-numbered highway in Virginia that shares a number with a U.S.