Transportation for America conducted an analysis of the National Bridge Inventory, a database produced by the Federal Highway Administration (FHWA), and found one in nine U.S. bridges has been rated “structurally deficient.”(This means that the bridge is in need of more frequent monitoring and critical, near-term maintenance, rehabilitation or replacement). Using this data, Transportation for America divided 102 metropolitan areas into three categories based on population (500,000 – 1 million; 1 million – 2 million; over 2 million) and ranked them based on the percentage of deficient bridges found in each. In the small metro category Des Moines and Omaha hold the dubious distinction of ranking 4th and 6th, respectively, in highest percentages of deficient bridges. In the over 2 million category, Kansas City ranks 6th.
To put its findings in context, Transportation for America notes that there are more deficient bridges in these 102 metropolitan areas (18,239) than McDonalds restaurants (approximately 14,000) in the entire country.
A summary of the report can be found here, where you can also find a link that will give you access to the entire report.
Information about Transportation for America can be found here.