Daily Kos - There are 61,064 structurally deficient bridges in the United States, according to an analysis of federal data, and just the highest-trafficked 25 out of those 61,064 bridges are crossed more than 6 million times a day. Just 25 bridges. According to the analysis by the American Road & Transportation Builders Association:
The 250 most heavily crossed structurally deficient bridges are on urban interstate highways, particularly in California. Nearly 87 percent of these bridges were built before 1970. Pennsylvania (5,050), Iowa (5,022), Oklahoma (4,216), Missouri (3,310), Nebraska (2,654), California (2,501), Kansas (2,416), Mississippi (2,275), Illinois (2,216) and North Carolina (2,199) have the highest numbers of structurally deficient bridges. The District of Columbia (14), Nevada (34), Delaware (48), Hawaii (61), and Utah (102) have the least. At least 15 percent of the bridges in eight states—Rhode Island (23 percent), Pennsylvania (22 percent), Iowa (21 percent), South Dakota (20 percent), Oklahoma (18 percent), Nebraska (17 percent), North Dakota (16 percent) and Maine (15 percent)—fall in the structurally deficient category.
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