Kentucky Secondary State Route 1830 is an east-west highway in Central Graves County. It runs from U.S. Rt. 45 to Kentucky State Route 121, north of Mayfield. KY Sec St Rt 1830 does not pass through any towns in Graves County. KY Sec St Rt 1830 is not multi-plexed in Graves County. KY Sec St Rt 1830 intersects the following highways in Graves County. U.S. Rt. 45, near Mayfield. Kentucky State Route 121, near Mayfield.