FHWA's 2024 National Bridge Inventory rates 6.9% of an average state's highway bridges poor; the share is highest in IA (19.2%), WV and SD, against a median state of 6.0%.
What it shows: IA is the largest at 19.2%, followed by WV at 18.6%; the smallest shown is NY at 9.4%.
Data and chart by CalcScrape: Control Arm Replacement Cost Calculator