hep is doing great. This is a major catastrophe, with no sensible explanation. Thirty-year-old bridges do not just collapse in a non-earthquake zone.
Terroists? We shall see.
And they do these things in threes.
Don’t go over the GW or Brooklyn Bridges tonight or tomorrow!
I guess you missed the Mianus River bridge collapse on I-95 in Connecticut some years ago, and the Schoharie Creek bridge up on the New York State Thruway a few years later.
Dont go over the GW or Brooklyn Bridges tonight or tomorrow!
40 year old bridges in high-salt areas can, if not properly maintained and inspected.
The US 51 bridge that collapsed in Tennessee was only about 10 years older, and was in an area where much less salt would have been used on the roadway, although that collapse was blamed not on corrosion, but on the effect of the river on the piers.
If you don’t like the US 51 bridge collapse comparison, look at the 2005 collapse of a 45 year old bridge on I-70 http://www.thepittsburghchannel.com/news/5680652/detail.html
The I-40 collapse in Oklahoma was blamed on a barge, so we won’t count it here.