Kentucky State Route 491 runs east-west across Nortern Grant County. This is Grant Counties northern most east-west highway. KY St Rt 491 passes through the following town in Grant County. Crittenden KY St Rt 491 is multi-plexed in Grant County. U.S. Rt. 25, near Crittenden. KY St Rt 491 intersects the following highways in Grant County. Kentucky Secondary State Route 2363, near Crittenden. Interstate 75, near Crittenden. U.S. Rt. 25, at Crittenden. U.S. Rt. 25, near Crittenden.
