The United States maintains one of the most extensive roadway networks in the world. Residents benefit from speedy and direct travel by personal vehicle from point A to point B. A major factor in enabling such efficient commuting is our nation's bridges. Just consider how often the average driver crosses over a bridge in any given daily commute. Such bridges may be large steel giants or they may be smaller spans used for going over a ditch or stream.
Much can go into building a bridge. An extensive amount of time and attention to detail is spent on design. Many resources, human and material, are used in the actual construction but, bridge work doesn't end there. Bridges require routine inspection and maintenance to ensure safety. Bridge analysis guidelines mandate bridge inspections every other year. Due to the massive array of bridges in use, this becomes formidable undertaking.
Inspectors survey a bridge's condition. They can spot maintenance needs and design flaws. An inspector will often have a variety of inspection gear as well as a surveying utility truck. Every time they observe deterioration on a overpass or bridge a bridge inspector can report it and the problem can be addressed quickly to reduce the amount of time the problem poses a safety issue.
Thanks to regular NBIS inspection US bridges are being maintained more efficiently. That sort of reliable analysis means a much safer drive for everyone. Drivers can breathe easier knowing bridges and overpasses are being held to rigorous standards.