Montana Department of Transportation


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MDT Bridge Inspection

Montana Highway 37 Bridge over Sutton Creek
Montana Highway 37 Bridge over Sutton Creek

Bridge Inspection – What is it and why is it important?

Montana Department of Transportation performs regular condition inspections of all in-service publicly owned bridges in accordance with the National Bridge Inspection Standards (NBIS). All inspections are entered into Montana’s Structure Management System database. Bridge inspection provides information about a specific bridge’s condition which plays a key role in the Bridge Bureau's mission to maintain a safe, resilient, economical, and reliable transportation system. This information, provided in a standardized and organized report, is used for several purposes:

  • To protect safety of the traveling public by identifying bridges that need repair
  • Track and report system-wide conditions
  • Perform analysis that supports bridge funding decisions
  • To satisfy federal requirements that all bridges in the National Bridge Inventory (NBI) must be inspected on a regular basis.