Missouri Secondary State Route HH is an east-west highway in South-Central Audrain County. It runs from U.S. Rt. 54 to Missouri Secondary State Route D/M. MO Se c St Rt HH does not pass through any towns in Audrain County. MO Sec St Rt HH is not multi-plexed in Audrain County. MO Sec St Rt HH intersects the following highways in Audrain County. U.S. Rt. 54, near Auxvasse.