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Author Topic: Houston: HCTRA appears to be readying huge ship channel bridge project  (Read 11328 times)

TXtoNJ

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Re: Houston: HCTRA appears to be readying huge ship channel bridge project
« Reply #25 on: January 12, 2018, 05:23:52 PM »

I'm assuming they will build the west span first, demolish the existing structure, and then finish the east span? If so, would you guess completion in the 2026-2028 range, with the first lanes opening around 2022-3?
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MaxConcrete

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Re: Houston: HCTRA appears to be readying huge ship channel bridge project
« Reply #26 on: January 12, 2018, 05:40:35 PM »

I'm assuming they will build the west span first, demolish the existing structure, and then finish the east span? If so, would you guess completion in the 2026-2028 range, with the first lanes opening around 2022-3?

Yes, your construction sequence is consistent with my understanding. The new northbound span (east span) will be in about the same position as the existing span.

According to the Traylor site, project completion is scheduled for December 2023. That's a fairly aggressive schedule, considering that each of the three major phases (built west span, remove existing span, built east span) must proceed one at a time in series, after the prior phase is complete.

MaxConcrete

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Construction has begun, as reported in this article
https://www.bizjournals.com/houston/news/2018/06/01/1b-construction-project-to-replace-houston-ship.html

The business journal article references an article in Roads and Bridges, which provides extensive technical details and has some nice depictions
https://www.roadsbridges.com/ship-and-handling#

The article says the "existing bridge [will be] demolished". My understanding from earlier reports that the main span would be deconstructed, basically disassembled one segmental section at a time, in reverse order to how it was built. I don't know if that qualifies as demolished, or if the plan has changed.

The existing bridge, opened in 1982, will probably reach its 39th birthday before it is removed. This is Houston, where short building and infrastructure lifespans are common.
I recently posted photos of the high school I attended, which opened in 1969. A couple weeks ago it was reduced to rubble.
http://houstonfreeways.com/Home/photos/sharpstown-high-school-demolition-2018





« Last Edit: June 02, 2018, 12:31:10 AM by MaxConcrete »
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