Archive for the ‘main span channel’ Tag

Flashback Friday: First Construction 66 Years Ago

then

Your eyes are joining the two sections of the main span in the image above, right? History is repeating, now with two spans and a modern, hi-tech, safer and more artistic bridge.

now

Crews started work on the Tappan Zee Bridge in March 1952; this past summer the first span of its replacement opened. Happy and healthy New Year to you!

Photos courtesy New York State Thruway Authority.

I’d like to know what you think.

Copyright © Janie Rosman and Kaleidoscope Eyes 2018

Two of the four Tower Cranes were Removed

This is a hint re my earlier blog post. If you consider the angle, then it’s telling. Something really cool will happen when the westbound span opens. Still stumped?

Checking out the cranes as the towers gain height via jump forms/© Janie Rosman 2016

Let’s focus on what you can no longer see: tower cranes. Two of the four cranes are gone which, project officials said, means the westbound span needs no more “major” construction. Crews are now putting the finishing touches, if you will, on the Rockland-bound span of the new Governor Mario M. Cuomo Bridge.

I’d like to know what you think.

Copyright © Janie Rosman and Kaleidoscope Eyes 2017

Something Else happens when First Span Opens

Did a double-take the other day when I saw this carpet design again while waiting for an appointment. While the pattern is the same throughout the first floor, the bridge-symmetry doesn’t always appear.

After I wrote that the westbound span’s opening seems behind schedule, I was reminded this is a construction project. Much as driving on it will be a significant marker, this will remain an active site until it’s completed.

Something else (besides it accommodating traffic) will happen when the first span opens. Can you guess what it is? Tell you before the end of the week.

I’d like to know what you think.

Copyright © Janie Rosman and Kaleidoscope Eyes 2017

Engineering Expo and Recognizing Rebar

Today was a perfect chance to learn about the bridge project, what with plenty of experts at the Engineering Expo ready to answer questions. I bet you were there trying to stump one of them.

Not possible. You’d have learned, however, the main span towers are 1,200 feet apart at each end of the channel, and their platforms are 14 feet thick and more than 360 feet long. It took a lot of concrete — 11,000 cubic yards, to be exact — to fill them. And you’d have learned lots more.

While there I visited several exhibitors and, among other things, learned how sewers are relined using a sophisticated method. What caught my eye was an object on the table that was the same size and shape as something I’ve seen before.

I asked the woman if it was rebar; she said yes, it was, and seemed surprised I recognized it. Between you and me, I wouldn’t know a rebar sample from a hole in the wall had it not been for the educational outreach presentations. Speaking of which, check out photos from today here.

I’d like to know what you think.

Copyright © Janie Rosman and Kaleidoscope Eyes 2017

Sunrise on Bridges; More Stay Cables Installed

This awesome view of the sunrise was captured by Chris Lopez, a surveyor at New York Geomatics, Inc. He works on the new bridge’s towers before dawn and has a perfect view of each day’s awakening.

Can you tell which span they’re on? Hint: closest to the current bridge. You also see a stay cable right behind them. Crews anchored and tensioned 110 of an eventual 192 cables and continue installing them on the eastbound span this week.

Did you find the clues?

I’d like to know what you think.

Copyright © Janie Rosman and Kaleidoscope Eyes 2017

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