Virginia State Route 123 is a primary state highway located in Virginia, USA. It runs approximately 20 miles, connecting the cities of Fairfax and Woodbridge. The route serves as a vital corridor for local traffic and provides access to various neighborhoods and commercial areas. The highway is known for its mix of suburban and urban landscapes, featuring several intersections and interchanges. It also intersects with major roads, including Interstate 95 and U.S. Route 1, facilitating travel throughout the region. Virginia State Route 123 plays an essential role in the transportation network of Northern Virginia.