Bridge design for vessel collision. A🧵 The main span of the Francois Scott Key Bridge is 1300 ft. It also has 185 ft of clearance, making this a massive bridge. This type of bridge is considered complex. Baltimore is in for a long haul before replacement. Here is why. 1/x
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We design modern bridges for ship impact, but this was not always the case. In 1980 the Sunshine Skyway Bridge also collapsed from vessel strike. The photo below is the original Skyway. Similar bridges and identical failure. The Skyway collapse changed bridge design. 2/x