Archive for the ‘Tappan Zee Bridge’ Tag

Second TZ Section, this over Metro-North, Gone

You may recall when the first girder assembly was pushed over the Hudson Line train tracks to the first set of piersPhotos courtesy of New York State Thruway Authority.

This was followed by the second and third girder installations. Each time, Metro-North adjusted its schedule to accommodate the maneuvers.

Last Friday night, the super crane removed a second section of steel, this above the Metro-North tracks, and schedules were accommodated.

Such is the start of the changing view that will slowly evolve during the next year.

I’d like to know what you think.

Copyright © Janie Rosman and Kaleidoscope Eyes 2017

Super Crane removes first section of Tappan Zee

Another moment in history: the super crane’s first lift in a year-long process of dismantling the Tappan Zee Bridge. One hundred thirty-three deck panels and two moveable barrier machines will be sent to nearly 12 state and local municipalities.

Twenty-nine months ago the giant crane lifted its first set of structural steel girders onto piers for the new bridge near the Rockland shoreline.

Below is a cross-section of the Tappan Zee Bridge’s Westchester approach span, a little like when someone cuts into a sheet cake and lifts out a precise piece.

Eight local munis and the New York State Department of Transportation (NYSDOT) asked for desk panels, valued at nearly $3 million including removal and delivery. Details here. Photos courtesy of New York State Thruway Authority.

Each of those panels — in use until last month —  is approximately 13 feet wide by 50 feet long, 8.25 inches thick and approximately between 75,500-86,500 pounds.

The moveable barrier system will head to the New York City Department of Transportation. To learn about the bridge that will slowly disappear, click here.

I’d like to know what you think.

Copyright © Janie Rosman and Kaleidoscope Eyes 2017

Cool views invisible from the Driver’s Seat: completing one Span and removing Another

Painter standing on a girder more than 400 feet long, and no fear of height here./NYSTA

What we can see from the car/SUV — motorcycle riders have the advantage of no window frames — is the new maintenance facility underway near the Westchester landing. What goes on under and next to the bridges are different stories.

Think this person is standing on a pier near the Westcheser landing? You’re right!/NYSTA

Now that River Road is open — and the Tappan Zee Bridge’s abutment is gone — look for cranes near Westchester landing removing sections of TZB steel and concrete. The colossal crane will remove the first of 20 sections now then through next spring, the largest weighing up to 2,600,000-plus pounds.

This scaffolding platform will be under the TZB to help crews during its demolition/NYSTA

The TZB’s decline was so sharp that when mom and dad took us to the country, my younger brother and I were sure we’d drive right into the Hudson River. Not quite. It looks harmless here alongside a barge.

That decline was protected from ice by wooden piles, now collected in this barge /NYSTA

While River Road is open, bridge lanes and an on-ramp will be closed at various times during the week as work continues near the landings. Click here for details.

I’d like to know what you think.

Copyright © Janie Rosman and Kaleidoscope Eyes 2017

TBT: Going Vertical with Concrete Batch Plants

Today is six months since President Barack Obama was in town with Governor Cuomo, who visited Piermont last month. The Crane! The Crane! If you watched “Fantasy Island” years ago, then you’ll remember the opening scenes.

Tappan Zee Bridge in the background/© Janie Rosman 2014

Tappan Zee Bridge in the background/© Janie Rosman 2014

This machine is serious business. It’s being readied for what comes next: lifting pile and girder deck segments . . . and then dismantling the current bridge.

Realizing it’s not possible to see either the staging area or activity from the road, Team Outreach posted these photos and descriptions on the New NY Bridge Twitter page:

Floating concrete batch plants: three hoppers w/ gravel, sand, cement/NNYB Outreach

Floating concrete batch plants: three hoppers w/ gravel, sand, cement/NNYB Outreach

Pop quiz: If one plant can cast about 125 cubic yards of concrete per hour, how long will it take both plants together to make approximately 300,000 cubic yards of concrete for the new bridge?

Top and inside of one pier cap, installed with rebar, nr the Rockland side/NNYB Outreach

Top and inside of one pier cap, installed with rebar, nr the Rockland side/NNYB Outreach

When TZC president Darrell Waters told reporters the project was “going vertical,” this is what he meant.

Two of the new bridge’s 86 vertical steel towers nr the Westchester side/Outreach

Today’s sunny and clear weather is perfect for checking out the viewing area at RiverWalk Park.

I’d like to know what you think.

Copyright © Janie Rosman and Kaleidoscope Eyes 2014

Lane and Exit Closures per work on TZB Landings

This photo of Tappan Zee Bridge structural steel being removed with the bridge and river as backdrops is courtesy of New York State Thruway Authority.

You can see crews removing parts of the Westchester landing as you drive across from Rockland. The super crane will help with the removal starting in November.

What you can’t see is the Rockland landing; however, River Road in South Nyack is closed while crews work on the Rockland landings; click here for detour route, ramp and lane closures from Exit 11 southbound to Exit 10 through next Friday.

I’d like to know what you think.

Copyright © Janie Rosman and Kaleidoscope Eyes 2017

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