The San Francisco Bay Bridge is closed while engineers fix a cracked “eyebar” – a structural member that transfers weight to the main supports.
Here’s hopeing they do a good job of it.
Eyebars are known to suffer from fatigue cracks.
The same design was used in the Interstate 35 bridge in Minneapolis, which collapsed in 2007 and killed five people.
Well, maybe in the same sense that both bridges had roads running over them. The 35W bridge was a conventional arch-truss bridge with, to the best of my knowledge, no eyebars; the Bay Bridge is a combination of trusses and a suspension bridge. Completely different structures.
But other than that…
And while normally I’d point out that the collapse killed thirteen people, I’m assuming the other eight disappeared due to California’s taxing and spending.