Ohio Structures operates under the stringent standards of the American Institute of Steel Contruction (AISC) and is certified to build Major Steel Bridges and also have earned the Sophisticate Paint Endorsement. Ohio Structures is an AISC certified structural steel fabricating and coating company serving the heavy-highway industry since 1988, Our facilities, located in Northeast Ohio, supply highway contractors in the East and Midwest States with on-time precisely built structures.. metalized steel bridges,complex steel buildings,pre-fabricated pedestrian bridges and more.