U.S. Route 30 is a United States Numbered Highway that runs from Astoria, Oregon, to Atlantic City, New Jersey. In the state of Ohio, it is a major 245.69-mile-long east–west highway that runs through
US 30 westbound approaching the SR 13 (Main Street) interchange in Mansfield
State Route 100 is a north–south highway in northwestern Ohio. Its southern terminus is at State Route 309 near Iberia, and its northern terminus is at State Route 53 in Tiffin.
State Route 100 concurrent with State Routes 4 and 19 near Bucyrus