Sullivan links to an archived graphic of bad bridges in the US, and a couple things stand out:
1.) If you look at the blown up map, Brooke, Hancock and Ohio County in WV are all marked red (as is Mon. County), meaning they have problem bridges. That region, the northern panhandle of WV, has it’s old industrial base along the Ohio River; Koppers, Wheeling-Pittsburgh and Weirton Steel, Fostoria glass (not sure how many if any of these are still in business) and many other industries reside or used to reside there. If you drive from Wheeling to Weirton up old Route, it seems like you can not go 1/4 mile without seeing an old steel bridge.
The point- there are a ton of bridges, and I am not sure how many are still operational, and if the archive is conflating the older out of use bridges and the newer bridges for civilian traffic.
2.) When I first looked at the map, I thought “Gee- the SW doesn’t have many bad bridges at all.” Then I realized I am a moron.
3.) Of the industrial centers with a number of waterways, it appears that Oregon and Washington stand alone as being in good repair. There might be a lesson to be learned by comparing the relationship between state and local government in regards to infrastructure in those states and New York, in which it looks like there is not a safe bridge anywhere.
Pretty interesting, though.