A new Iowa DOT Research engineering study has recalculated the load ratings for bridges built according to specific standard plans in the state.
Such studies are conducted every few years in Iowa to keep up with changing laws and other demands. They help keep road users safe by ensuring that heavy vehicles are properly permitted and travel along approved routes and that legal loads are properly restricted when necessary.
The project team gathered data for hundreds of bridges that were built using Iowa DOT’s standard plans and used cutting-edge software to create a series of tables that engineers across the state can use to report and verify a bridge’s load capacity. The load ratings also give state and federal decision-makers more information on the bridges in Iowa’s inventory.
Learn more about the project and what it means for road users in Iowa through the new research briefand final report.
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