Ohio State Route 9 is a north-south highway in Central Belmont County. This runs from Armstrong Mills, north to the Belmont/Harrison County Line. OH St Rt 9 passes through the following towns in Belmont County. Armstrong Mills Centerville Warnock St. Clairsville.
A BGS on EB I-70. A BGS on WB I-70. A BGS on WB I-70. A guide marker on the ramp from WB I-70. NB OH St Rt 9 near High Street in St. Clairsville. A junction marker on WB U.S. Rt. 40. A guide marker on WB U.S. Rt. 40.
