FARGO, N.D. (AP) -- North Dakota officials say most bridges in the state are in good shape and getting better, with most of those that could be at risk of failure carrying no more than a few dozen vehicles a day. A review of data submitted by states to the federal National Bridge Inventory found 7,795 bridges nationwide that are both structurally deficient bridges and fracture critical, a combination of red flags that experts say is particularly problematic. There are 150 such spans among the 4,500 bridges in North Dakota.
Those deemed fracture critical could collapse if a single vital component fails, while those rated structurally deficient have had their condition rated as poor or worse by inspectors. Officials say many of the bridges on the fracture critical list have been fixed.