The scariest thing is that it was a common design used in the interstate system. There are like eleven of them in NE Ohio.
Combining this with the water main issue in NYC really makes me wonder about how well infrastructure is being maintained in the US. *shakes head and sighs* No, honestly, not wonder. That's not the right word. It makes my skin crawl with how much skimping has been done in the spirit of 'good enough'.