I would note that even if it was in brand new condition, a hit anywhere on any of the supporting structures under the truss would bring down the whole bridge. It is literally impossible for that type of bridge to survive the compromise of any of its supporting structures.
Which makes the lack of concrete islands around the supports a rather blatant omission of duty on the designers.
But that is a conversation for after the immediate recovery and cleanup efforts are through.
The did drop anchors, but it takes time for the flukes to dig in and stopping a ship of that immense size would take time even with the flukes fully dug in.
I couldnât imagine ever driving anything that big. Iâve drove a 18 wheeler once (helped my neighbor move his into position where he could easily work on it) and that was stressful enough.
And even expedited, probably a year to rebuild the bridge.
Took five years to build the original structure, but as the approaches appear to be intact, they only need to rebuild the center span. Still it will be quite time consuming.
Never did anything that big - just 3-400 ft CG cutters - but there were interesting moments doing stuff like underway fueling/replenishment and helo ops where things could go kablooie pretty quickly and easily with a loss of power or just steering.
If one element in a truss fails, it is severely weakened. If a main support is knocked out, the whole thing can collapse like a line of dominoes. We are fortunate the collapse occured in the wee hours of the morning when there was little traffic on the bridge.
I-35W bridge that collapsed a few years was a similar design. It came down during rush hour. Here are before and after pictures from wikipedia.
I lived in Eastern Baltimore County for 35 years and traveled the FSK Bridge for 34 years to and from work and sometimes in between to the old Bethlehem Steel Works at Sparrows Point. The loss of that bridge, impact on the Harbor and the Dundalk Marine Terminal will be catastrophic.
My God what an unimaginable travesty.