Archive for the ‘Tappan Zee Constructors LLC’ Category

Educational Outreach explains the Pulley System

This cool interactive demonstration at Stemtastics in Larchmont showed kids and parents how pulleys work to lift weights like structural steel on bridges.

The I Lift NY super crane’s versabar (system) can lift up to 1700 metric tons (1928 US tons), much-needed strength when lifting pieces of structural steel.

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It’s getting closer to when two-way traffic will shift to the the westbound span; however, I’m wondering how the belvederes will be constructed while cars are on that span. Will one lane be closed so crews can safely work on the shared use path? Will the belvederes be completed before traffic moves to the westbound span?

Here’s a view of the westbound span, where workers lower formwork over rebar. Getting there! Photos courtesy of New York State Thruway Authority.

I’d like to know what you think.

Copyright © Janie Rosman and Kaleidoscope Eyes 2017

TBT: Looking Back at Earlier Project Photos

What are those things floating in the river? Debris? No, those are piles, and the story that day (June 2014 media tour) was pile cleansing: scooping out the muck prior to filling them with concrete and rebar (reinforced steel).

Did you notice the super crane is on the south side of the bridge? It had recently arrived at the project site, where crews waited for low tide a few days later before limbo-ing it under the current bridge.

Blue jump forms will help build the main span’s 419-foot towers./Photo: NYSTA

Oh my, how tiny it looks at ground level. This is from early September 2015, when crews began building those now-419-foot tall towers using self-climbing jump forms. Are those cartoon heads in the red truck?

Here’s a memory from days gone by, when tolls were 50 cents each way. One-way collection was adopted August 12, 1970, and toll booths on the northbound lanes were removed.

And guess what? We made it through the Ides of March. Ha!

I’d like to know what you think.

Copyright © Janie Rosman and Kaleidoscope Eyes 2017

Noise Barrier Installation Continues — & Lights

You know about the hour-long light show under the bridge last month, right?

Above photo of lights courtesy of New York State Thruway Authority.

TZC also connected the Westchester and Rockland approaches to the main span last month. Getting closer! I wonder where they’ll put this happy sign:

Crews continue installing concrete noise barriers chosen way back when along the southbound Thruway and the northbound side (next to the future shared use path) in South Nyack.

I’d like to know what you think.

Copyright © Janie Rosman and Kaleidoscope Eyes 2017

TBT: Still Hooked on Last Week’s Test Lights

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Rumor has it I scooped project officials with my recent post about the new LED lighting system, first mentioned in late December.

So when those LED roadway lighting stanchions (columns) that were attached to the westbound span shone brightly for an hour last week (after dark since it’s easier to see lights after dark), only those who saw it knew.

Watch for news soon. Lights, camera, action! on the new bridge. Choice of colors at the flick of a switch, and (parts of) the river will magically glow.

I’d like to know what you think.

Copyright © Janie Rosman and Kaleidoscope Eyes 2017

ICYMI: Colorful Preview of New Bridge’s Lighting

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“TZC will begin preliminary testing of the westbound Rockland approach’s aesthetic lighting in the coming weeks. The preliminary testing will occur during daytime hours.”

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The above notice is from the February 16 press release. Thank you to Steve, who contacted me not long ago to say he noticed the colorful lighting tests.

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The LED lighting — 2,700 color lights that can be programmed remotely for variable shades and 500 white lights — is from Philips Lighting, the same company that brightens Madison Square Garden.

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Philips said the new system, the first of its kind in the industry, will combine roadway and architectural lighting and is estimated to be 75 percent more energy-efficient than traditional lighting.

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Photos are courtesy EarthCam® construction camera on the project’s website.

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Did you miss seeing them, too? I’d like to know what you think.

Copyright © Janie Rosman and Kaleidoscope Eyes 2017

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