Archive for the ‘floating concrete batch plants’ Tag

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

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

A Bridge by Any Other (including a new) Name

So the new bridge will have a new name or a partially-new name: the Governor Mario Cuomo Tappan Zee Bridge? No one is renaming Westchester or Rockland counties or the Hudson River. We (the United States) are late to the cable-stayed bridge party, which began long ago (decades, to be exact) in Europe.

Can you imagine folks 60-some years ago scratching their heads as four towers began rising from the river? Would it have been possible to even build those towers? As the first floating concrete batch plant arrived on the scene (no pun intended) in 1956 and was patented in 1966 (U.S. patent #3,251,484), imagine the caravan of supply trucks heading to the water.

Trucking through a snowstorm on the Tappan Zee Bridge (not the same day) /© Wn.com

The new bridge is nothing like the one that withstood 61 and one-half years of vehicles, trucks, vans, motorcycles, accidents, upgrades, repairs, attention, suicides, the elements and criticism.

Yet it also got a new name somewhere along the line as early on it was known as the Tappan Zee Hudson River Crossing Project. Say that three times fast.

People don’t like change, do they?” the technician who wheeled my dad into the room for a CAT scan asked. “At least, they don’t at first, and then, all of a sudden, they come around, and realize change is good.” He looked up at the TV on the wall, and then looked at me. I nodded.

His words stayed with me. I’d like to know what you think.

Copyright © Janie Rosman and Kaleidoscope Eyes 2017

Aftermath of That Morning in December 2014

View from the EarthCam® construction camera in Tarrytown December 16 at 9:15 a.m.

Sometimes you follow your gut, and the resistance you encounter tells you you’re onto something, so you push harder. I FOILed the Thruway Authority shortly after the batch plant accident more than two years ago and was consistently stalled.

View from the EarthCam® construction camera in Tarrytown December 16 at 9:30 a.m.

What the agency gave me was five internal emails from TZC stating an incident happened, and no one was hurt. Thankfully. My FOIL request ended with a project official calling me “to tidy things up,” after which the Thruway Authority’s legal department told me it considered the matter closed.

Really? Here’s what I recently found that confirmed I was on the right track.

Concrete Silo Collapse By Jenna Ebersole

Law360, Washington (January 7, 2016, 8:19 PM EST) — The contractor replacing the Tappan Zee Bridge in New York sued two companies based in Wisconsin and Switzerland Thursday in New York federal court, accusing them of shoddy work that led to the collapse of silos on a concrete plant mounted to a marine barge in the Hudson River in 2014.

Tappan Zee Constructors LLC said Maxon Industries Inc. and X-Tec Swiss AG designed and constructed defective silos, seeking at least $25.7 million for higher costs as a result, including labor, equipment and other construction costs. The group said that the silos on one barge that collapsed in December 2014 were defective and that the constructors discovered similar defects with the second plant.

“Defendants’ acts or omissions to act, including their deficient and inadequate structural design of the silos in accordance with the applicable silo-design code service loads, and their failure to construct hopper and vertical wall steel plating thickness in accordance with X-Tec’s own fabrication shop drawings, caused the collapse,” the group said.

The constructors said they signed an agreement in May 2013 with Maxon for two batch plants, including the silos, after coming to an agreement on two new bridge structures over the Hudson between Rockland County and Westchester County. Maxon then entered an agreement with X-Tec for certain designs, the group said.

“Maxon and X-Tec knew that the batch plants were to be mounted on marine barges and used on the Hudson River,” Tappan Zee Constructors said.

Maxon was [nearly one year] late on a promised Aug. 1, 2013, supplying of the plants, the constructors said, but they were used as intended until the collapse of one silo [December 2014], which pulled down two adjacent silos. The group then discovered defects with both plants, the constructors said.

The complaint said the constructors group “was compelled to stop using the batch plants and required to materially alter its concrete operations until it determined and effectuated appropriate modifications and repairs to the batch plants and obtained a third batch plant to supplement its operations.”

The group alleges breach of contract, negligence and malpractice, among other claims.

“Defendants acted negligently and breached their duty of care by, among other things, providing an inadequate structural design of the silos under applicable silo-design code service loads,” the constructors said.

Representatives for the parties could not immediately be reached for comment late Thursday.

The constructors group includes Fluor Enterprises Inc., American Bridge Company, Granite Construction Northeast Inc.and Traylor Bros. Inc. in a joint venture, according to its website.

Tappan Zee Constructors is represented by Paul Monte of Peckar & Abramson PC.

Counsel information for Maxon Industries and X-Tec Swiss was not immediately available Thursday.

The case is Tappan Zee Constructors LLC v. Maxon Industries Inc. and X-Tec Swiss AG, case number 1:16-cv-00126, in the U.S. District Court for the Southern District of New York.

–Editing by Patricia K. Cole

Reprinted from http://www.law360.com

In Plain Sight: Batch Plant a Mystery No More

Floating concrete batch plant arrived in the summer, ready to work/© Janie Rosman 2014

Floating concrete batch plant arrived in the summer, ready to work/© Janie Rosman 2014

Every now and again I receive a notice that a floating concrete batch plant is available and ready for shipping. Am I interested? the email asks.

It’s been 18 months since the accident that necessitated Tappan Zee Constructors, LLC (TZC) to shut down one floating concrete batch plants a few months into its duties. Why did it shut down the second?

Last December, one year after that accident, the governor ruled on Freedom of Information Law (FOIL). His office reviewed each project-related FOIL request with a fine-tooth comb, sources told me as the FOIL request hit snags that were more like stone walls.

I figure this is why it took so long to find out what happened after the first plant collapsed yet both plants were shut down. I’d surmised they were built similarly, and the bridge builder knew there was a chance the second batch plant might collapse, too.

Back then I asked: Would it have been a matter of time before an identical malfunction occurred in that second batch plant so TZC took precautions if both were prepped, inspected and tested identically?

A project source told me: yes, the second crane would have malfunctioned.

What the agency gave me was five internal emails from TZC stating an incident happened, and no one was hurt. Thankfully. My FOIL request ended with a project official calling me “to tidy things up,” after which the Thruway Authority’s legal department told me it considered the matter closed.

I’d like to know what you think.

Copyright © Janie Rosman and Kaleidoscope Eyes 2016

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