Stateline - A bridge rated "functionally obsolete" does not meet current design standards for such things as lane width, often because current traffic volumes exceed what was expected when the bridge was built. In other cases, design standards have changed since construction. There are 84,748 bridges functionally obsolete bridges in the country, according to Federal Highway Administration data. Deficient Bridges States with the most structurally deficient bridges:
Pennsylvania, 26.5 percent Oklahoma, 22 percent Iowa, 21.7 percent Rhode Island, 21.6 South Dakota, 20.3
But another federal rating of bridges, "structurally deficient," is worse. They are not necessarily unsafe, but are "characterized by deteriorated conditions of significant bridge elements and potentially reduced load carrying capacity," according to the FHA. There are 66,749 of them in the country, and they require significant maintenance and repair to stay in service.
Pennsylvania, 26.5 percent Oklahoma, 22 percent Iowa, 21.7 percent Rhode Island, 21.6 South Dakota, 20.3
But another federal rating of bridges, "structurally deficient," is worse. They are not necessarily unsafe, but are "characterized by deteriorated conditions of significant bridge elements and potentially reduced load carrying capacity," according to the FHA. There are 66,749 of them in the country, and they require significant maintenance and repair to stay in service.
Please continue reading at: http://www.pewstates.org/projects/stateline/headlines/66749-structurally-deficient-bridges-85899479097
