[Keyhopper]

I was checking photos and it appears the span was over 100’.
The center column was next to the canal. The base was there, but not the upright with the support cables. It was built in 6 days and installed on Saturday. It appears to be a flat slab about 6” thick and approximately 20’ wide. I guess they thought the center truss supporting the roof would handle the load, guess they were wrong.

[dynachrome]

I posted this over at the bridge thread. ‘Diversity’ at work?

Celebrating the bridge’s opening:

https://news.fiu.edu/2018/03/community-gathers-to-watch-950-ton-bridge-move-across-southwest-8th-street/120395

“Michelle said she might want to follow in her parents’ footsteps and go to FIU when the time comes, and that it was fascinating to see her mom’s work in action. “I’m interested in the architecture and the design of the bridge, and the math portion of it,” she said.

Said Leonor: “It’s very important for me as a woman and an engineer to be able to promote that to my daughter, because I think women have a different perspective. We’re able to put in an artistic touch and we’re able to build, too.”

[philman_36]

Now add in the upper cover and the diagonal gussets for the total weight.

[Cboldt]

The span was to be two sections. Both spans were to be supported by the center column, which is in place. The upright with support cables would go on after both spans were in place.

[TXnMA]

I looked briefly at a video of them lifting it into place with that huge custom transporter/lift rig they had underneath it. I'll have to go back and analyze carefully, but there are a pair of transverse fractures across the deck that struck me as perhaps where the ends were cantilevered beyond support by the "rig"...

A single transverse fracture from "lift damage"would have sufficed to initiate total collapse,