Archive for January, 2017|Monthly archive page

Third Gantry soon added to Westbound Span

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This week the third gantry will be installed on the new westbound span. Pretty cool to see the span taking shape. Read more about gantries here.

Photos courtesy of New York State Thruway Authority.

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Sometime this year, maybe in a few months, we’ll be driving on that span.

I’d like to know what you think.

Copyright © Janie Rosman and Kaleidoscope Eyes 2017

There’ll be no Rhythmic Bumps on New Bridge

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Driving across the current bridge is sometimes an interactive experience.

Motorists see the construction progress — most noticeably, that self-climbing jump forms were removed from all eight main span towers, revealing their chamfered tops. They can also feel and hear their three-mile trip, thanks to nearly 200 expansion joints that absorb the bridge’s steel and concrete slight expansions and contractions.

No rhythmic bumps on the new bridge, which will have 12 such joints on the westbound span and 11 joints on the eastbound span.

About the overhead gantries:

Intelligent Transportation Systems (ITS) will monitor conditions on the new spans and automatically inform the Thruway Authority staff about disruptions. Connections with law enforcement, first responders and tow truck operators will help minimize impacts from lane closures and accidents. Connections with the Thruway’s larger traffic management network will help synchronize operations, maintenance and repairs.

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More than 85 of the 192 stay cables, ranging from 190 to 623 feet long, that will support the main span roadways were anchored the towers and tensioned to outside sections of structural steel the crews. That’s more than 700 miles’ worth of steel reaching from Tarrytown to Cincinnati.

I’d like to know what you think.

Copyright © Janie Rosman and Kaleidoscope Eyes 2017

Bridge Design pops up in an Unlikely Location

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Expect the unexpected, right?

Yesterday while waiting for an appointment I took notice of the shapes and design in the office carpet. Would you believe I saw the recently-topped main span towers and road deck?

Do you also see the towers in the pattern? I’d like to know what you think.

Copyright © Janie Rosman and Kaleidoscope Eyes 2017

Throwback Thursday: Four Years Earlier . . .

Spring after the project started: “Figure Sitting at RiverWalk Park”/© Janie Rosman 2013

Spring after the project started: “Figure Sitting at RiverWalk Park”/© Janie Rosman 2013

Tomorrow’s presidential inauguration has been the focus of media coverage and attention nationwide and around the world: a new leader will be sworn into office, a testament to our democracy.

Today for Throwback Thursday I’m noting the anniversary of another event: four years ago yesterday NYS Comptroller Thomas P. DiNapoli approved the contract with Tappan Zee Constructors, LLC (TZC) to replace the Tappan Zee Bridge. At the time it was called the Tappan Zee Hudson River Crossing Project.

Crews began pre-construction work two months later.

I’d like to know what you think.

Copyright © Janie Rosman and Kaleidoscope Eyes 2017

Another gantry added to the Westbound Span

hidden-tunnel

Took a blog hiatus and am back! Here’s where I temporarily disappeared.

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Last week crews installed the second of eight overhead gantries on the Rockland side of the westbound span.  Ten gantries will be installed on the eastbound span, 18 in all.

Meantime, here are sights from en route to the edge of the westbound span.

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We passed the shared use path abutment on the Westchester landing . . .

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. . . and workers installing an expansion joint connecting road deck panels.

location-marking

This is a location marker for guess which belvedere of the shared use path?

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Terrific view of the Rockland shoreline backdrops steel rebar structure for beginnings of what will be a concrete retaining wall for the shared use path.

I’d like to know what you think.

Copyright © Janie Rosman and Kaleidoscope Eyes 2017

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