U.S. Federal Route 40 is a east-west highway across Franklin County. This provides a main east-west surface street through the Metro-Columbus Area. It runs mostly along east and west Broad Street. U.S. Rt. 40 passes through the following towns in Franklin County. Alton
WB U.S. Rt. 40 west of Alton. WB U.S. Rt. 40 east of Galloway Road. WB U.S. Rt. 40 west of I-270. A BGS on SB I-270. A BGS on SB I-270. A BGS on EB I-70. A BGs on WB I-70. A guide marker on SB U.S. Rt. 23.