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Old June 22nd, 2013, 02:09 AM   #2361
MrSlippery519
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Anyone know why the one crane has been inactive for the week? I do not think it has moved once.

On a good note glad to see a bunch of new pieces on site
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Old June 22nd, 2013, 03:13 AM   #2362
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Quote:
Originally Posted by MrSlippery519 View Post
Anyone know why the one crane has been inactive for the week? I do not think it has moved once.

On a good note glad to see a bunch of new pieces on site
it moved when it had to lift the pieces from the trucks

Last edited by wtcforever; June 22nd, 2013 at 03:20 AM.
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Old June 22nd, 2013, 04:44 PM   #2363
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By Michael V. Calcagno.

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Old June 22nd, 2013, 05:23 PM   #2364
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god, I love how weird this project is. that piece looks like an abstracted trojan horse.
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Old June 22nd, 2013, 05:23 PM   #2365
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Nice picture. Thanks!
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Old June 22nd, 2013, 06:00 PM   #2366
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Nice article by Skanska.

Recovering From Hurricane Sandy

Quote:
When Hurricane Sandy battered New York and New Jersey in late October, it took an immense toll on our projects and our people. Yet both stood strong. Coast to Coast heard many stories about Skanska teams’ resiliency in the face of Sandy. These included mighty efforts on our projects, such as those at the World Trade Center, New York University and the United Nations, and by assisting New York City with emergency requests to repair homes and launch a temporary ferry service. With the hurricane interrupting our normal pace of doing business, other Skanska teams worked heroically behind the scenes to ensure our paychecks went out on time, that our computer systems remained operational and that our storm-battered offices could return to normal as quickly as possible.

Pumping Out 165 Million Gallons
At New York City’s World Trade Center, USA Building and USA Civil led
the massive dewatering operation through our team’s resourcefulness
and dedication. Now, with the water gone, restoration work continues.

Sections of Skanska’s World Trade Center PATH Hall transit
project were 40 percent complete when Hurricane Sandy reached
Manhattan’s lower end. Air handlers 40 feet long and ducts 11 feet square had been installed in the lowest levels, 80 feet below street level – and then walls and floors of concrete and steel had been built around this equipment. Miles of metal conduit had been hung and laced with wires. Closer to the surface, Italian marble lined the walls in the new grand entrance hall; those stone panels had been matched to each other in Italy by both color and grain, making them nearly impossible to replace.
The hurricane’s storm surge pushed some 165 million gallons of water into this subterranean project, overtopping perimeter retaining walls. Under normal conditions, these concrete retaining walls – built into rock – that line the site’s perimeter hold back the waters of the Hudson River. But after Sandy, the walls functioned like a bathtub, holding in the water. The water
level rose more than 30 feet, totally submerging completed mechanical rooms and lapping at some bottom sections of marble.


After two-and-a-half years of work, the $600 million-plus project had finally been hitting its stride and, with finishes being installed, there was a sense that completion was in sight.

The hurricane brought a pause to that productivity. Countless meetings were held with our client, the Port Authority of New York and New Jersey, and manufacturer representatives to discuss what could remain and what had to be replaced. Much had to go, and the schedule could be delayed eight months or more.

“It’s a few steps back, but we take big steps so we can make up time,” said Mark Irvin, a USA Building general superintendent on the project.
Tool gang boxes “floating like surfboards”. The five-level PATH Hall project is the backbone of the 16-acre World Trade Center redevelopment. Skanska’s work involves rebuilding tracks and platforms – along with constructing a myriad of support systems – for the Port Authority TransHudson (PATH) line, a transit railroad connecting Manhattan with northern New Jersey. Both USA Building and USA Civil are involved with this project – for which Skanska is leading a joint venture with Granite Construction – and Skanska Koch is involved in a related portion.

It’s difficult coordinating logistics on this busy construction site with four office towers under construction in the midst of the nation’s biggest city – yet those are only part of the logistical challenges. Our team is working while tens of thousands of commuters travel daily through protected areas of the construction site to reach a temporary PATH station, and while the live No. 1 subway line passes about 70 feet in the air through the project, supported by 3,500 mini piles.

Skanska’s World Trade Center team took normal preparations to prepare for the storm, as nobody anticipated the storm surge submersing the project. The flooding quickly became apparent to two operators changing the normal de-watering pumps 75 feet below the street.

They looked down the hall and saw water filling the space. Heavy gang boxes full of tools were “floating like surfboards in a tidal wave,” Irvin said. “In less than an hour, we had all the water we could take.” Heavy equipment such as excavators, Bobcat loaders and aerial lifts soon became completely submerged. Skanska’s daily pre-task planning and our required buddy systems kept our workers still on site safe at all times.

Assistance from West Virginia and Georgia

As water began pouring into the below-grade project the night of Hurricane Sandy, Skanska project leaders began calling to secure pumps, pipes, generators, light towers and other supplies from as far away as West Virginia and Georgia (with help from USA Civil Southeast). Pipe was the toughest resource to procure: Most suppliers typically don’t have much 12-inch pipe on hand, Irvin said, and he needed 7,000 or 8,000 feet of mostly 12-inch pipe.

Eventually, 22 pumps – including six 12-inch pumps capable of moving 7,000 gallons per minute – were slurping the estimated 165 million gallons of water out of the project. At the peak, almost 1.4 million gallons per hour were being pumped. With assistance from the Port Authority and the state, fuel tankers were police-escorted to the World Trade Center site, where we had established a central fuel tank facility that was shared by all contractors on site.

Overall, the vast quantity of water was not as much of a challenge as pumping it 80 feet vertically to get it out of the station. “As a team, we got our people together pretty quickly before other stakeholders here started thinking, ‘Hey, I know where I can get a pump,’” Irvin said. “Our actions were phenomenal.”

Darkness in Lower Manhattan
In Sandy’s aftermath, Lower Manhattan was a different place. There was no electricity, no food and no communication – not even mobile phone service. Getting around was difficult or impossible as the subways and busses were not running, and streets were flooded and barricaded by police. Traffic lights and streetlights were all dark, and the city had shut down all remaining utilities to not further risk endangering anyone. Emergency generators – typically located in the basements of buildings - had all been submerged. “The eeriest thing was New York being black at night,” Irvin said. “No one had ever experienced anything like it before.” Some Skanska team members were able to reach the PATH Hall project only after showing their Trade Center badges to police officers and being escorted to the site. It was tough driving, Irvin said, as water was mid-tailgate on his dual rear-wheel pick-up truck the morning after the storm.

To communicate, our team had the police unlock the building housing Skanska’s jobsite office so team members could climb the eight flights of stairs in total darkness to get their two-way radios. To eat, workers who were coming from areas of the city with power would bring food and drinks for their colleagues as best they could.

For those colleagues who could make it to the site, the team started a system of rotations, but Irvin and a few others stayed overnight the first four nights because they couldn’t get home. They slept in their trucks. “You have to remember that most everybody who came here was suffering the same thing at their own house, so they left their families to come and help out here,” Irvin said. “It feels pretty good to have individuals with that kind of dedication on your construction site. It wasn’t about money at that point – it was guys stepping up.

Skanska’s expediency in mobilizing workers and obtaining equipment and supplies led to an efficient PATH Hall pumping effort. Because of our team’s strong performance, the Port Authority gave us additional assignments, including dewatering the New York half of the south PATH tunnel under the Hudson River and the basements of the three towers on the east side of
the World Trade Center site.
“We were the stars,” Irvin said. “It was a good feeling to have the Port Authority ask us to take care of most everything else. We’re kind of the go-to guys here.”

As pumping subsided, our team decontaminated the project by pressure washing everything with chlorine; the floodwater was a murky mixture that included diesel fuel and sewage from portable toilets. They also inspected the entire project to ensure safety.The Skanska team safely worked three shifts around the clock, seven days a week, until the site was pumped dry and cleaned in mid-November, said Mike Campana, USA Civil project manager.While all that was being done, decisions were being made about what equipment could be salvaged and what had to be removed. Most of the permanent mechanical gear and electrical components need to be replaced or refurbished, with lead times of up to a year. The project’s schedule could be pushed back eight months or more beyond the previous early 2016 completion date.

Even with all of the complexity and frustration that the World Trade Center presents, Irvin said there’s no other project he’d rather be on. “It’s heart wrenching at times to know the real reason why you’re here,” Irvin said. “But that also gives you a sense of pf pride for being here and working on something so important.”
Skanska magazine available here. Sandy Recovery efforts are still being made at some mechanical areas around the site.
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Old June 22nd, 2013, 06:08 PM   #2367
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Screenshots from mag

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Old June 23rd, 2013, 03:38 AM   #2368
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Quote:
Originally Posted by Otie View Post
Nice article by Skanska.

Recovering From Hurricane Sandy



Skanska magazine available here. Sandy Recovery efforts are still being made at some mechanical areas around the site.
Early 2016?! I thought it was mid-late 2015 after Sandy? Basically we won't see this hub until 2017 then. I'm not trying to sound like a whiny brat here and I understand a lot needs to be done but if this thing doesn't open until 2017 well I'm sorry but that's a joke.
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Old June 23rd, 2013, 08:14 AM   #2369
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First escalator trusses for Transit Hall/Oculus arrived.
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Old June 24th, 2013, 06:09 PM   #2370
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new piece being placed right now!image hosted on flickr
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Old June 24th, 2013, 07:06 PM   #2371
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Old June 25th, 2013, 11:54 AM   #2372
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by zippythechimp

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Old June 25th, 2013, 04:02 PM   #2373
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No more livecams at all
Not exactly "at all" but no livecams which could be useful for this thread.

Last edited by АмУх; June 25th, 2013 at 05:05 PM.
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Old June 25th, 2013, 06:24 PM   #2374
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Thanks to ZippyTheChimp for those pics. This may be the best way we can see the Hub construction for a while.

--Chuck
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Old June 25th, 2013, 08:36 PM   #2375
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Interesting progress on that side of the Hub today...

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Last edited by StavrosG; June 26th, 2013 at 12:29 AM.
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Old June 25th, 2013, 08:38 PM   #2376
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What is it?
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Old June 26th, 2013, 12:19 AM   #2377
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A temporary platform for various contractors. Otie knows way more than I do. He said that hanging platforms will also be attached to steel for welding.
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Old June 26th, 2013, 03:15 AM   #2378
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Crazy how all the pieces are started to come together.

I mean, you can just see how impactful the wings will be.

It's like one giant sized jigsaw puzzle.
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Old June 26th, 2013, 06:31 AM   #2379
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Please keep those pics coming, StavrosG. The Oculus camera on my EarthCam connection is off these days.
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Old June 26th, 2013, 06:36 AM   #2380
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Quote:
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A temporary platform for various contractors. Otie knows way more than I do. He said that hanging platforms will also be attached to steel for welding.
The hanging platforms will be for Enclos team, the current scaffolding is yet to support upcoming "dancing platforms", and will look like a stepped pyramid.
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