Archive for the ‘cranes’ Tag

Soon to be Gone: TZB Main Span Removal Ahead

You can see the future in these photos; the two below are courtesy of the New York State Thruway Authority. It’s getting close to that time, folks, when the Tappan Zee Bridge will cease to be yet will remain forever a part of the area’s history.

There is it, that cut in the main span truss. Good to know parts of the bridge will be repurposed to state and local municipalities; a little eerie to realize this day, so far into the future nearly six years ago — during my first bridge meeting at the Quay Condominium in Tarrytown — would finally arrive.

Seven months ago, the last car drove its 3.1 miles. The ginormous crane returns to help crews remove sections from the bridge’s main span. Moving forward, they continue to installing precast concrete deck panels near the Westchester landing and pouring concrete there.

Yesterday was eight miles. It’s more than three miles one way and the same walk back or there’s the Lower Hudson Transit Link.

I’d like to know what you think.

Copyright © Janie Rosman and Kaleidoscope Eyes 2018

Eastbound Span Increases as TZB Decreases

This photo showing the angle we see from the other side (while heading west) is straight from the project’s newest tower webcam via EarthCam® construction cameras. If you click the photo, then you can see the I Lift NY setting structural steel near the Westchester shoreline.

Been a while since I posted: while I was away getting a new hip joint, the super crane’s been busy! Last weekend it was installing deck panels on the eastbound span so that you and your vehicle will have a safe ride. President Barack Obama and Governor Andrew Cuomo both talked about holes in the Tappan Zee Bridge’s roadway.

“At times you can see the river through the cracks of the pavement,” Obama said during his May 2014 visit to Tarrytown. “Now, I’m not an engineer, but I figure that’s not good.”

“They keep doing these patch jobs on the Tappan Zee Bridge, including those very heavy metal plates over holes in the Tappan Zee Bridge,” Cuomo said during remarks to the North America Building Trades Union’s Legislative Conference in April 2016.

“And when you go over the heavy metal plates, you see the truck in front of you bounces just a little bit, and then you see a little light coming through from the corner of the plate,” he said. “I would always take my seat belt off when I was going over the Tappan Zee Bridge. I was getting ready to swim, I would take off my shoes, and I would open the window. I was ready.”

In the above photo, courtesy of the New York State Thruway Authority, cranes are installing said deck panels. They’ll be interlocked via their hairpin reinforcing steel bars, after which reinforcing concrete will be poured between the spaces (around the steel) prior to the final driving surface.

Enough excitement for now. Check back later for another blog post. Self-promo: my article about infrastructure, the new bridge and federal spending will go live next month in a national magazine.

I’d like to know what you think.

Copyright © Janie Rosman and Kaleidoscope Eyes 2018

On Location with more than a Thousand Words

Looking good: the shared use path on the Westchester side gets new LED roadway lighting stanchions (columns) for safety and visibility. Path construction in South Nyack begins in 2018. Photos courtesy of the New York State Thruway Authority.

How they get there (Tappan Zee Bridge and under-construction eastbound span) from here (land): by boat as both are independent of land. Back to river travel.

Check out this view inside the cage of a 300-ton crane. Like the super crane did, this will place steel girders onto newly-minted piers near the Rockland landing.

Mighty big for pick-up sticks, right? Above, the rebar sections being cut will be or were installed within concrete. FYI, a tiny piece of rebar is heavier than it looks.

I’d like to know what you think.

Copyright © Janie Rosman and Kaleidoscope Eyes 2017

Bridge Progress and Four Years in Two Minutes

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

Taking a look back two years ago when the main span towers were beginning. Here are the past four years in two minutes courtesy of the project team.

I’d like to know what you think.

Copyright © Janie Rosman and Kaleidoscope Eyes 2017

Main Span Channel Closed until 4:30 p.m.Today

batch-plant

While you were driving by, concrete batch plants were adding to the new bridge’s road decks. Photo courtesy of New York State Thruway Authority.

Today’s the first main span channel closure so structural steel sections and road deck panels can be installed between the towers.

I’d like to know what you think.

Copyright © Janie Rosman and Kaleidoscope Eyes 2016

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