U.S. Federal Route 340 runs east-west highway in North-Central Maryland. It runs from the Frederick/Washington County Line, near Weverton, to Frederick. U.S. Rt. 340 passes through the following town in Frederick County. Hagerstown U.S. Rt. 340 is multi-plexed in Frederick County. U.S. Rt. 15, from near Jefferson to Frederick. U.S. Rt. 340 intersects the following highways in Frederick County. Maryland State Route 180, near Knoxville. Maryland State Route 17, near Rosemont. Maryland State Route 180, near Jefferson. U.S. Rt. 15, near Jefferson. Interstate 70, at Frederick. Maryland State Route 180, at Frederick. U.S. Rt. 15, at Frederick.
A BGS on NB I-270. A BGS on NB I-270. A BGS on WB I-70.
