iirc all the bids for a concrete version (ala Florida) were twice as much for th... | Hacker News

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		stevenwoo on Oct 23, 2019 \| parent \| context \| favorite \| on: Pedestrian Bridge Collapse over SW 8th Street in M... iirc all the bids for a concrete version (ala Florida) were twice as much for the steel design that was used, otoh California version also has to be earthquake resistant. I gotta give credit to all the engineering firms and Caltrans oversight. Very little downtime on 280, that would have been a traffic nightmare for entire peninsula.

OrangeMango on Oct 23, 2019 [–]

$14 million for 375 feet in CA is ~$37k/ft

A 620 ft concrete suspension bridge [1] in Chicago was $23 million, or ~$37k/ft

A 1470 ft concrete and steel bridge [2] in Chicago was $33 million, or ~$22k/ft

This ugly monstrosity in Florida was $9 million for 174 feet, or ~$51k/ft

It's awfully pathetic.

[1] https://www.exp.com/project/35th-street-pedestrian-bridge/

[2] https://chicagocrusader.com/new-41st-street-pedestrian-bridg...

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