Virginia State Route 646

State Route 646 (SR 646) in the U.S. state of Virginia is a secondary route designation applied to multiple discontinuous road segments among the many counties. The list below describes the sections in each county that are designated SR 646.

Virginia State Route 646

State Route 646 (SR 646) in the U.S. state of Virginia is a secondary route designation applied to multiple discontinuous road segments among the many counties. The list below describes the sections in each county that are designated SR 646.