U.S. Federal Route 1 runs north-south in Southeastern Prince William County. It runs from the Prince William/Fairfax County Line, near Woodbridge, to the Prince William/Stafford County Line, near Boswell's Corner. U.S. Rt. 1 passes through the following towns in Prince William County. Woodbridge Leesylvania Cherry Hill Dumfries Triangle U.S. Rt. 1 is not multi-plexed in Prince William County. U.S. Rt. 1 intersects the following highways in Prince William County. Virginia State Route 123, at Woodbirdge.
SB U.S. Rt. 1 near Annapolis Way. SB U.S. Rt. 1 at VA St Rt 123. SB U.S. Rt. 1 at Occoquan Road. SB U.S. Rt. 1 near Marumsco Creek. A guide sign in Woodbridge.