The state highway crosses over CSX's Alleghany Subdivision. SR 18 parallels the railroad tracks north under Interstate 64 to its northern terminus at Madison Street, which carries US 60 and US 220, south of downtown Covington.
A state highway crosses over CSX's Alleghany Subdivision. Route 18 runs parallel to the railroad tracks northward under Interstate 64 until it reaches its northern endpoint at Madison Street, which serves US 60 and US 220, south of downtown Covington.