Indiana State Route 58 runs across Southern Sullivan County. While it goes in a direction from southeast to northwest it runs north-south in the county. It goes from Indiana State Route 63, at the corner of Poplar and 3rd in Merom, to the Sullivan/Knox County Line, north of Freelandville. IN St Rt 58 passes through the following highways in Sullivan County. Merom Merom Station Carlisle IN St Rt 58 is not multi-plexed in Sullivan County. IN St Rt 58 intersects the following highways in Sullivan County. Indiana State Route 63, at Merom. U.S. Rt. 41, at Carlisle.