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this is a video of a construction of a pipe line. pipelines always interested me i never knew exactly what goes into this type of construction

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this video explains earthquakes and the impact they have on buildings. also what structures are better for these types of disasters

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Why do buildings fall in earthquakes? - Vicki V. May

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this video explains the history of the Brooklyn bridge

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Tower Bridge London ~ History Of London Bridge Full Documentary NEW

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National Historic Civil Engineering Landmark

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Brooklyn Bridge, New York City | Brooklyn Bridge Documentary - Television

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Brooklyn Bridge, New York City | Brooklyn Bridge Documentary - Television The Brooklyn Bridge is a hybrid cable-stayed/suspension bridge in New York City and is one of the oldest bridges of either type in the United States. Completed in 1883, it connects the boroughs of Manhattan and Brooklyn by spanning the East River.

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this video explains how solar panels work and the benefits of solar panels

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How do solar panels work? - Richard Komp

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this is a really cool video showing a man climb the tallest tower without fall protection

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World's Tallest TV Tower Climb without Safety Equipment (475m)

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Do not mess around on these towers! There are dangers you can't see like radiation and electrocution. After 3 months of steady research and training we determined this tower was deactivated and safe to climb, and that I was fit to climb it. The ascent took 2.5 hours and the descent 1.5 hours.

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this video has really cool shots from the top of djar khalifa

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View From Working On Top Of The Burj Khalifa

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Uploaded by mickflahertyTSME on 2010-12-15.

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this video shows its viewers the construction of the tallest building djar khalifa

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At over 828 metres (2,716.5 feet) and more than 160 stories, Burj Khalifa holds the following records: Tallest building in the world Tallest free-standing structure in the world Highest number of stories in the world Highest occupied floor in the world Highest outdoor observation deck in the world Elevator with

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this video explains the structure and building of the world tallest bridge

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How the Tallest Bridge on Earth Was Built

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this is a video of bridge constrcution

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How do engineers build bridge towers under water?

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this is a video of constrcution of a bridge and setting piles in the ground underwater

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How do engineers build bridge towers under water?

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this is a day in the boots of a lineman

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Notre équipe de monteurs au quotidien...

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bridge work is also a big interest to me. this is the brooklyn bridge located in nyc and is my favorite bridge.

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i like the engineer side of construction so far. do i see myself sitting in a office crunching numbers probably not but i do like to understand why and how this building stand

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When i graduate i would like to get involved with big commercial buildings. being a pm on a project like a high rise or stadium would be a dream come true

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i go to school to get a degree and to get a job and to make good enough money to at least pay back my loans. so this picture o money is another big reason why i went into construction managment

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this is a truss bridge. In structural theory i have to design a truss bridge out of tongue depressors.

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after taking the lineman's class here at delhi i learned that i have a passion for an occupation. that was one of the best classes i took and the funnest. this is a picture of a linman on a pole

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working in the electrical field for 4 years now has been an awesome experience. i love the work and learn everyday something new on the job, and of course touching live electrical wires isnt boring either.

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before i decided to even go into the construction field at all even before electrical i worked on a deck with a carpenter and feel in love with the field

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this is a picture of construction plans or blue prints. one o the many reasons why i wanted to go into constrcution managment was to learn how to read plans

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this is the empire state building located in new york city. It is glowed up for memorial day. This is my favorite building in the world

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this residential apartment building in dubai is looking to surpass the burj khalifa High risers are my favorite part of construction and i was wondering who and when the next tallest building will be

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Developers have announced plans to build a new tower in Dubai to surpass the Burj Khalifa, currently the world's tallest building.

Emaar Properties has not announced the height of the proposed tower, saying only that it would be "a notch" taller than the Burj Khalifa's 828m (2,717ft).

The $1bn (£710m) project is scheduled to be completed for the Dubai Expo trade fair in 2020.

It is expected to have residential units, a rooftop courtyard and a hotel.

The new tower is designed by Spanish-Swiss neo-futuristic architect Santiago Calatrava Valls and will be supported by a matrix of cables.

The structure's design means that it is unlikely to be widely recognized as a taller "building" than the Burj Khalifa even if it surpasses it in height, Associated Press reported.

Emaar-built Burj Khalifa is expected to be overtaken by the 1km-high (0.6 mile) Kingdom Tower in Jeddah as the world's tallest building in 2020.

The construction will be the centre piece of the redevelopment of the Dubai Creek, the heart of old Dubai. It will also have observation decks and restaurants.

The announcement from the government-backed company comes as developers continue to launch new projects amid what experts are saying is a softening real state sector.
iWonder: How do skyscrapers stay up?

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Developers have announced plans to build a new tower in Dubai to surpass the Burj Khalifa, currently the world's tallest building. Emaar Properties has not announced the height of the proposed tower, saying only that it would be "a notch" taller than the Burj Khalifa's 828m (2,717ft).

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developer hardwood international is getting a new high rise ofice building. This building is 22 stories high and  226,778 square feet.
i have family that see this building being constructed

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Developer Harwood International has scheduled a groundbreaking for its next office high-rise in Dallas' Uptown district.

The 22-story Harwood No. 10 building is planned at 2850 N. Harwood St., near the entrance to Dallas North Tollway.

The 226,778-square-foot office tower has been in the works for several months.

It will be the 10 th phase of the developer's namesake Harwood mixed-use project along McKinnon Street north of downtown Dallas.

A construction start for the building is scheduled for the building Thursday morning with Harwood CEO Gabriel Barbier-Mueller.

The building is scheduled to open in fall 2018 and will include more than 9,000 square feet of retail space.

Designed by Dallas architect HDF, the silver glass high-rise will have garden terraces on the 10th, 16th and 17th levels. A 10,000-square-foot penthouse office has two private roof gardens.

The building will be one of three towers Harwood has under construction in its 17-block development.

The Dallas-based developer is building the 33-story Bleu Ciel condominium at Harwood and Wolf Street. And Harwood is building a seven-story building for luxury watchmaker Rolex on Harry Hines Boulevard.

The Harwood No. 10 building will be the fourth office project being built in Dallas' booming Uptown market.

Uptown has some of the state's most expensive office space with new buildings renting for more than $50 per square foot.

The building is scheduled to open in fall 2018 and will include more than 9,000 square feet of retail space.
Going Up in Uptown:
Office projects under construction in Dallas' Uptown neighborhood.

Park District - 20-story office tower with 500,000 square feet under construction at Pearl Street and Woodall Rodgers. Developer Trammell Crow plans to open in late 2017.

The Union - 22-story, 417,000-square-foot office tower under construction at Cedar Springs Road and Akard Street. RED Development plans to open the building in early 2018.

Rolex Building - 7-story 136,857-square-foot office building for watchmaker Rolex at Harry Hines Boulevard and Moody Street. Developer Harwood International plans to complete the project in 2017.

Harwood No. 10 - 22-story, 226,778 square-foot office tower planned at 2850 N. Harwood Street near the entrance to the Dallas North Tollway. Developer Harwood International plans to open the high-rise in the Fall of 2018.
Just opened:
McKinney & Olive - 20-story, 530,000-square-foot office and retail project on McKinney Avenue at Olive Street. Developer Crescent Real Estate is moving the first tenants in the building which is more than 80 percent leased.

1920 McKinney - 12-story, 150,000-square-foot office tower at McKinney and Harwood Street north of Klyde Warren Park. KDC developed the new high-rise which has 8,500 square feet of ground floor retail and restaurant space.

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Construction kicking off on Uptown Dallas office tower

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Developer Harwood International has scheduled a groundbreaking for its next office high-rise in Dallas' Uptown district. The 22-story Harwood No. 10 building is planned at 2850 N. Harwood St., near the entrance to Dallas North Tollway. The 226,778-square-foot office tower has been in the works for several months.

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is my favorite building in the world. from 1931-1971 it was the tallest building in the world.

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Empire State Building - The Skyscraper Center

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As the tallest building in the world from 1931 to 1971, the Empire State Building is the ancestor of all supertall skyscrapers and makes a lasting impression in the minds of all who have stood beneath, or atop, this international icon.

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the reedom tower is 1208 ft tall and is the second tallest building in the city. This tower took the place o the twin towers aka the name freedom tower. I chose this because my friend david walsh was a pm on this job

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One World Trade Center is soaring into the stratosphere at such breathtaking speed that it will rise above the roof of the Empire State Building in four to six weeks - and claim its crown as New York's tallest building.

The cloud-buster known to most New Yorkers as the Freedom Tower, its original name, hit the 93rd floor just six days ago - and at a dizzying 1,208 feet above street level, it's now the city's second tallest skyscraper.

On a sun-splashed day last week, the Daily News took an exclusive tour of the tower's summit and entered into the kingdom of the ironworkers, the "cowboys of the sky" who perch fearlessly on I-beams to raise the steel skyward.

These 150 hard hats are the unsung heroes of America's post-9/11 recovery, and they take immense pride in their mission to rebuild what the terrorists knocked down - and guide their steel once again to the top of the world.

This stunning aerial view -- lost to a terrorist attack 10 years ago -- looks northeast from a crane atop One World Trade Center, at an actual height of 1,243 feet, as the building soars back into the sky above lower Manhattan. (Mark Bonifacio/New York Daily News)

"When we first got here, it was The Pit - nasty, sad and dreary - a hole in the ground filled with ashes, a place where everybody looked down," said Michael O'Reilly, 37, a second-generation ironworker from Amityville, N.J.

"Now, instead of looking down into the rubble, people are looking up into the sky ... high into the sky. And instead of mourning, instead of crying, they are now smiling."

The return of the Trade Center to dominance of the city's skyline honors the 3,000 innocents massacred on 9/11 and fulfills a city, state, regional and national commitment to reclaim what Al Qaeda tried to erase, says Port Authority Executive Director Pat Foye.

Hardhat Michael O'Reilly has quite a view from his work on the 93rd floor of One World Trade Center. (Mark Bonifacio/New York Daily News)

"The iconic Twin Towers we lost can never be replaced," he said as two dozen workers clambered across the girders to ring the building with a massive blue protective cocoon.

"But here we are standing 1,200 feet above the streets of Manhattan, watching the steel installed for the 93rd floor, and we're seeing a new iconic World Trade Center that will light up the skyline for decades to come."

Majestic and shimmering, the tower commands spectacular views encompassing the shorefront homes of Bay Ridge, the runways of Kennedy Airport, the necklace of the George Washington Bridge, the much shorter spires of downtown and midtown.

It's a view the world will enjoy from 1,269 feet in early 2014 when the tower's three-level observation deck on the 100th, 101st and 102nd floor opens to the public.

Pointing northwest, over the swamplands and suburbs of New Jersey, Foye jokes, "Don't strain your neck, but if you look very hard, you can see Alaska."

Workers ring the building with a blue protective cocoon as construction continues on the 104-story skyscraper. (Mark Bonifacio/New York Daily News)

It's been a tough 10 years: The 104-story, 1,776-feet tower was originally projected to cost $2.1 billion and its first completion date was set for 2006. But budget-busting delays pushed the ribbon-cutting back eight years and its pricetag skyrocketed to $3.9 billion.

Despite reversals, and a tab borne by bridge-and-tunnel tollpayers, the 2.6 million-square-foot colossus has become exactly what architect Daniel Libeskind envisioned in his 2003 master plan - America's defiant answer to terrorism.

"It's the eighth wonder of the world," says Steve Plate, the PA's director of World Trade Center Construction. "It's a statement of fortitude and determination and the absolute best of mankind."

Rising an average of 9.5 feet a week, 1 WTC now stands eight feet taller than the 1,200-foot Bank of America Tower and 162 feet taller than the 1,046-foot Chrysler Building.

It's also quickly closing in on the Empire State Building, which held the tallest title from its completion in 1931 to the opening of the Twin Towers in 1973 - and again after their horrific collapse on Sept. 11, 2011.

Foye says that in four to six weeks, when 1 WTC hits the 101st floor, it will have reached 1,254 feet, surpassing by four feet the 1,250-foot roof of the Empire State.

"Nothing better displays our resolve," he says.

The icon will keep scaling new heights, and when it gets to 1,368 feet at the 104th floor, it will equal the top of the destroyed North Tower. After that, the 408-foot mast will bring it to its signature 1,776 feet.

Along the way, the tower will surge past the 1,454-foot tip of the Empire State's antenna spire, probably in the last three months of this year.

Then it will overtake the old North Tower's 1,727-foot antenna tip, and finally Chicago's 1,729-foot Willis Tower, formerly the Sears Tower, to become the tallest building in America.

But to O'Reilly and his fellow ironworkers, they've already reached the top of the world.

"We're now so high up in the sky," he says, "that we can literally wave into the windows of passing airplanes."

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Freedom Tower reclaims New York City's iconic view from top of the 'World' ten years after 9/11 - NY Daily News

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One World Trade Center is soaring into the stratosphere at such breathtaking speed that it will rise above the roof of the Empire State Building in four to six weeks - and claim its crown as New York's tallest building.

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The vista tower is a new 95 story building going up in chicago, making it the 3rd biggest in the city. high risers and heavy civil is my favorite construction phase. The taller the building the more interested i am

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Construction began Wednesday on a tower that will be the third-tallest building in Chicago.

Mayor Rahm Emanuel held a ceremonial groundbreaking at the site near North Columbus and East Wacker drives in the Loop Wednesday morning but the earth movers actually began their work along Lower East Wacker in mid-August.

"The largest real estate investment by a Chinese firm in the United States of America is going to be right here in the city of Chicago," Emanuel said.

The Vista Tower will be a $1 billion, 95-story, 1,186-foot structure comprised of Vista residences and a five-star hotel. One-bedroom apartments start at $1 million.

Award-winning architect and Chicago native Jeanne Gang, who also designed the well-known nearby Aqua Tower, designed the Vista Tower as well, making it the largest-ever designed by a female architect.

"That's going to also bring a lot of vibrancy to this area and our city can support that," Gang said.

"This project is significant for many reasons. A huge investment. It's nearly $1 billion," said David Reifman, the city's planning and development commissioner.

Preparation for construction began last month. The project is expected to take three years to complete and will create thousands of construction jobs and more than 500 permanent jobs once the building opens, officials said.

Activist Bob Israel crashed the groundbreaking event Wednesday, complaining that African American workers are not getting their share of construction jobs on downtown projects.

"My concern is minority participation in a billion dollar project. I don't know why, that's why I'm down here to see. That's why I've been meeting with these developers, going to city planning commission meetings. That's the question I'm asking. Why is there no minority participation?" Israel said.

None of the speakers addressed the issue of African-American workers. Instead, the mayor focused on the size of the Chinese investment and his hopes of more to come.

"This represents their confidence in the vitality of the city and we're going to continue to talk to them about different projects that exist in the city where it's appropriate," Emanuel said.

During construction, the city said there will be a new traffic pattern at Columbus and Wacker and Lower Field Boulevard will be closed. Access to the Chicago Riverwalk from Lower Lakeshore East will be blocked, officials said.

Vista Tower is expected to open by the end of 2019.

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Construction begins on Chicago's 3rd-tallest building

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Construction began Wednesday on a tower that will be the third-tallest building in Chicago. Mayor Rahm Emanuel held a ceremonial groundbreaking at the site near North Columbus and East Wacker drives in the Loop Wednesday morning but the earth movers actually began their work along Lower East Wacker in mid-August.

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because of baby boomer retirements and slow hirring detroit is in need of lineman. companies are paying incentives or bonuses for new hirerees . line work is really interesting to me, thinking about going towards this field of work.

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A shortage of power line workers, largely due to baby boomer retirements and hiring slowdowns during the Great Recession, has utility companies and contractors scrambling for workers.

Some public utilities and private contractors are paying incentives or daily bonuses to attract and retain workers, raising costs for companies and ultimately consumers.

Companies in 2008-10 "weren't willing to take the time for an apprentice to finish training, and many left. Now we're paying the price for it," said Mike Kozlowski, president of the International Brotherhood of Electrical Workers Local 17 in Southfield.

"We have guys pulling in a buck or buck-50 ($100,000 to $150,000) without even blinking," he said, describing power line workers' total pay, including overtime.

Factoring in expected retirements, the state needs to grow the ranks of its 2,470 power line workers to about 3,470 by 2020 to keep pace, according to the Michigan Workforce Development Agency's labor market bureau. Numbers for previous years were unavailable.

Industry leaders and state officials point to signs of the crunch. Among them:

■Outage-prone Mackinac Island is having a hard time finding a journeyman linemen who will live on the island for $70,000 a year. Two qualified applicants turned down the job. The island's electric co-op lost a longtime contractor to retirement in June.

■An emergency wage increase was approved this summer for Bay City Electric Light and Power to keep experienced workers from being lured away for higher pay.

■At a recent district meeting of IBEW locals from five Midwest states, 19 of 22 locals reported having too few line workers, Kozlowski said.

The average annual wage for power line installers and repairers last year was $65,000, according to the federal Bureau of Labor statistics.

Line installers and repairers are responsible for every light switch flipped, phone call made, cable show watched or Internet site accessed. Typically, they specialize.

But becoming a lineman is no simple task. The state requires at least 8,000 hours of apprenticeship over four years to be a licensed journeyman, which allows a lineman to work on his or her own, supervise apprentices and command better pay.

Hank Johnson is the future of line workers, known best for weathering blizzards, scaling power towers and repairing damaged substations that can leave thousands of people and businesses in the dark.

Johnson, 21, is an apprentice in west Michigan with Consumers Energy.

"I like to be outside and it's a little bit different," Johnson said of his new job.

His journeyman supervisor today is 58, with about 35 years' experience. He retires in a year.

Together, Johnson and his supervisor represent the industry's conundrum: How do you attract younger workers, who require years of training, to replace experienced veterans leaving at a faster rate as business booms?

The work can be dangerous. Nationally, 25 power-line installers and repairers were killed on the job in 2014, or 19 per 100,000 workers.

Line worker Kyle Scheuneman, 36, is recovering after a near-fatal accident.

On April 23, Scheuneman was zapped while working on a high wire in Mason County. The 7,200 volts entered the Kent Power Inc. worker's left shoulder, punching a small hole. It exited his right shoulder the size of a fist. Damage between was severe. After dozens of surgeries, the father of three returned home in mid-October after 172 days in the hospital.

The shortage has been years in the making. Last year, the Michigan Workforce Development Agency completed a five-year, $3 million effort to attract and retain workers for the electric power sector, including "smart grid technology" for wind farms and power plants.

Statewide, the agency reported 232 people completed pre-apprentice lineworker training, 88 were placed in jobs and 61 "incumbents" were retained.

The Southeast Michigan Community Alliance in Wayne and Monroe counties, with the exception of Detroit, was part of the effort: 159 people completed pre-apprentice training; 57 were placed in new jobs; and 12 retained jobs.

Still, it is not nearly enough.

"We have an older population and the potential and the eligibility to retire is 50 percent of those workers," said Tracy DiSanto, manager of workforce planning and analytics at DTE Energy.

DiSanto co-chairs the Michigan Energy Workforce Development Consortium, an industry group of about 40 members including the Detroit Regional Chamber. Electrical line and natural gas workers were identified as "a core job with a critical need," DiSanto said.

DTE hires electrical workers directly and contracts for others. "To the extent we can find them we are going to hire, otherwise we have to pilfer them from contractors, if that is the right word," she said.

A report from the consortium is expected Nov. 10. The emphasis will be on standardizing credentials to better meet needs of employers and increase education need to fill the jobs in colleges, officials said.

John Barnes is a West Michigan-based freelance writer.

Read or Share this story: http://detne.ws/1MlAA4G

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Power line workers are hot commodity in Michigan

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A shortage of power line workers, largely due to baby boomer retirements and hiring slowdowns during the Great Recession, has utility companies and contractors scrambling for workers. Some public utilities and private contractors are paying incentives or daily bonuses to attract and retain workers, raising costs for companies and ultimately consumers.

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there is a new tool that can calculate renewable energy anywhere in the world. Solar is getting more popular and understand new products is important

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Solar News From Solar Daily - 24/7 News Coverage of the Solar Energy Industry

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this article explains a solar conversion system that can generate steam from solar. i picked this because solar is an interest i have ever since i took intergrated energy at delhi

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from research organizations

A team of researchers from the Masdar Institute of Science and Technology and the Massachusetts Institute of Technology (MIT) have developed a novel, low-cost solar thermal energy conversion system that can easily generate steam from sunlight. The solar conversion system can help make technologies that rely on steam, like seawater desalination, wastewater treatment, residential water heating, medical tool sterilization and power generation, more efficient and affordable.

The new device floats on water, converting 20% of incoming solar energy into steam at 100 degrees Celsius without expensive optical concentration devices and is made of cheap, commercially available materials, including bubble wrap and a polystyrene (plastic) foam.

"This project is an excellent demonstration of how international collaboration and use-inspired research can yield cutting-edge scientific findings that have direct application to the sectors that are at the core of the UAE's continued evolution toward an innovation and knowledge-based economy," said Dr. Steve Griffiths, Vice President for Research and Associate Provost, Masdar Institute.

"The system we have developed enables us to generate steam with solar energy without having to rely on direct sunlight," said Dr. TieJun Zhang, Masdar Institute Assistant Professor of Mechanical and Materials Engineering. ""The technology is particularly suited for the UAE's dusty climate, as it fully uses the entire spectrum of sunlight for thermal applications rather than just the direct portion, which can be hindered by the aerosols," he added.

Dr. Zhang, MIT's Mechanical Engineering Department Head Dr. Gang Chen, PhD student Hongxia Li and Postdoc Weilin Yang at Masdar Institute, published a paper on their new floating solar receiver last week in the journal Nature Energy, along with George Ni, an MIT graduate student and the paper's leading author, and two other researchers at MIT.

The receiver's design is relatively simple: A floating, sponge-like device made of a spectrally-selective absorber allows visible light energy from the sun in, while restricting the amount of heat that radiates back out into the atmosphere. This heat-trapping effect significantly improves the device's sunlight-to-steam efficiency.

The absorber is sandwiched between a top bubble-wrap layer, which allows for sunlight absorption while reducing the amount of heat lost to the air through convection, and a bottom insulating foam layer, which floats the entire structure on a body of water and reduces the thermal loss of the generated heat to the water below. The floating receiver acts like a sponge, constantly soaking up water and evaporating it, producing a continuous stream of steam.

The solar receiver was validated at MIT, where it demonstrated the ability to rapidly reach 100°C and generate steam during periods of low direct sunlight, such as during non-summer months and heavy cloud coverage.

"The technology we have demonstrated is particularly attractive for hot-arid region such as Abu Dhabi for potential applications in waste water treatment, sea water desalination, and even power generation," Dr. Chen said.

Journal Reference:

George Ni, Gabriel Li, Svetlana V. Boriskina, Hongxia Li, Weilin Yang, TieJun Zhang, Gang Chen. Steam generation under one sun enabled by a floating structure with thermal concentration. Nature Energy, 2016; 1: 16126 DOI: 10.1038/nenergy.2016.126

Cite This Page:

Below are relevant articles that may interest you. ScienceDaily shares links and proceeds with scholarly publications in the TrendMD network.

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thermodynamics; solar energy; nature of water; energy and the environment; renewable energy; water; energy issues; environmental policies; resource shortage

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Low-cost solar device converts sunlight to steam in dusty environment

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A novel, low-cost solar thermal energy conversion system has been developed that can easily generate steam from sunlight. The solar conversion system can help make technologies that rely on steam, like seawater desalination, wastewater treatment, residential water heating, medical tool sterilization and power generation, more efficient and affordable.

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This aritcle tells its reader 42 different new construction projects that are going on or in progress of. I chose this because i live near the city and like to know new projects that are going up.

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Almost every day, it seems, another world-famous architect unveils plans to erect a building in New York City. From first-timers to the local scene like Zaha Hadid, whose curvaceous building along the High Line broke ground this year, to tried-and-true veterans like Robert A.M. Stern, who is working on three limestone-heavy projects (of course), it seems pretty much every starchitect on earth is making New York a testing ground for designs. Their brainchilds, mostly housing pricey condos, are zany and classic, tall and short, cylindrical and pyramidal, glassy and, well, glassier. So check out 42 projects star architects are currently working on—and ones recently complete—across New York City, if only to get a sense of the scale of the change our built environment is about to receive. Think of one we missed? Hit up the tipline. Brace!
—With research and writing by Angely Mercado

· The 10 Most Eye-Catching Pieces of Starchitecture in NYC [Curbed]
· All Starchitecture coverage [Curbed]

3 BAM South - Enrique Norten

BAM South, the latest addition to Downtown Brooklyn Cultural District, will hold living and cultural space. It boasts a space for Brooklyn Public Library and 300 apartments, 20 percent of which will be affordable. Despite being on hold for a while, the building is predicted to be completed summer of 2016.

286 Ashland Place
Brooklyn, NY 11217

24 520 Park Avenue - Robert A.M. Stern

The newest of the RAMS bunch, 520 Park Avenue has been framed as a 15 CPW imitator. Developed by the Zeckendorfs, after they secured air rights and a coveted address from a Park Ave. church, the planned 51-story tower for East 60th Street and Park Avenue will—surprise—boast more limestone. Despite its generous height, 520 Park will have just 31 units, one of which will be a mega penthouse "priced at considerably more than $100 million." Obviously. Asks for the "cheaper" units will start around, brace, $27 million.

520 Park Avenue
New York, NY 10065

28 4 World Trade Center - Fumihiko Maki

Another Pritzker Prize-winner did get to see his World Trade Center building open: 85-year-old Japanese architect Fumihiko Mahi, whose shimmery, geometric, "dignified," "subtle," and "compelling" 4 World Trade Center opened its doors in November, on 11/12/13. The 977-foot-tall office building counts the Port Authority as its main tenant.

150 Greenwich St.
New York, NY 10007

30 56 Leonard Street - Herzog and de Meuron

Watching Herzog & de Meuron's long-awaited glassy Jenga tower rise in Tribeca is one of the more fun sights for construction junkies—with its corners all akimbo and asymmetrical sides and cantilevers jutting out all over the place. After getting stalled for awhile, the 821-foot, 56-story goliath packed full of uber-luxe condos ( a storage unit went for $300K) is about halfway to its full height. And, of course, one of the penthouses is in contract for $47 million.

56 Leonard St
New York, NY 10013

31 West Street Condos - Herzog & de Meuron

There aren't any visuals yet, but Swiss starchitects Herzog & de Meuron are probably working another condo building downtown—and before Jenga-tastic 56 Leonard is even topped out, too. A proposed 12-story project with condos on West Street between Leroy and Clarkson in the West Village had to go before the city's Board of Standard & Appeals to earn a zoning variance, and earn one it did. HdM is listed on the BSA application, so it's all official-like. Developing the mixed-use building is Area Property Partners and hotelier Ian Schrager, so they're the ones to beg for a rendering, stat.

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42 Star Projects Transforming Architecture in New York City

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Almost every day, it seems, another world-famous architect unveils plans to erect a building in New York City. From first-timers to the local scene like Zaha Hadid, whose curvaceous building along the High Line broke ground this year, to tried-and-true veterans like Robert A.M.

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a bridge collapsed near mount vernon washington. the collapsed occurred by an over size trailer clipping the top of the second cross arm. I chose this because in structural theory we are designing bridges.

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When an important bridge collapsed on Interstate 5 near Mount Vernon, Washington, in 2013, questions were raised about how such a catastrophic failure could occur. A new analysis by a team of civil engineering faculty at the University of Illinois at Urbana-Champaign outlines the many factors that led to the collapse, as well as steps that transportation departments can take to prevent such accidents on other bridges of similar design.

The analysis by Illinois civil engineering professors Tim Stark, Ray Benekohal, Larry Fahnestock and Jim LaFave was published in the American Society of Civil Engineers' Journal of Performance of Constructed Facilities.

"The bridge repair costs exceeded $15 million, and that doesn't account for the economic losses that the area felt because they and visitors no longer had access to the interstate," Stark said. "Even though this accident occurred three years ago, it's still very important because many bridges have this same design, not only in Washington but in other states."

The collapse on May 23, 2013, was precipitated when an oversized trailer clipped the top of the second cross-frame on the bridge. The analysis found several inciting factors, including regulatory ones -- the truck had a permit to cross the bridge; structural ones -- a minor impact caused a chain reaction that collapsed the bridge; and human error -- miscommunication between the drivers of the truck hauling the oversized trailer and its pilot car.

How did an oversized vehicle receive a permit for a bridge with lower clearance than its height? Inaccurate record-keeping, Stark said. The opening of the bridge was curved, so that the clearance over the far lanes was lower than the clearance in the center lanes. However, the Washington Department of Transportation only keeps the maximum clearance in its bridge database, which is used to issue permits for oversized vehicles.

"The key issue in this case is the variable vertical bridge clearance," Stark said. "Many bridges have a square opening, so the clearance is the same across all lanes. The problem with this bridge was that it curved down over the edge lanes. The oversized trailer was 15 feet 9 inches tall. The database said the bridge was 17 feet 3 inches, which was in the center -- almost two feet higher than the edges, which is where the oversized trailer was traveling."

Benekohal recommended that other states adopt the Illinois Department of Transportation's policy of reporting the lowest vertical clearance of a bridge, rather than the highest, and its periodic use of LIDAR to verify clearance numbers, which can be affected by repavement, snow or other factors.

The pilot car was the source of the human error factors detailed in the paper. Oversized vehicles have pilot cars to guide them, intended to help thwart the kind of scenario that led to the I-5 collapse. The pilot car has an antenna that is supposed to alert the driver if it hits a bridge or other structure, indicating that the clearance is too low for the following oversized vehicle to continue. Then the pilot driver must call the truck driver to tell him or her to adjust course.

"In this case, the pilot car either did not impact the bridge or the driver didn't hear the impact. They never called the truck, so that part of the safety mechanism failed," Stark said. "One solution we suggest is a sensor at the top of the pole that automatically contacts the oversized vehicle if it hits an object. This eliminates the drivers having to communicate quickly so the oversized vehicle can change course. Also, the pilot car antenna was not straight, so it was not accurately measuring the full height."

The structural analysis revealed that the impact to the second cross-frame, rather than the first, caused so much damage because the way it twisted pulled down the top of the bridge truss, which in turn caused the entire structure to fail.

"I think one of the interesting things about this failure is that the initial damage of where the truck hit was not a primary support, it was a cross beam, and the damage cascaded, causing the entire collapse," LaFave said. "We then looked at ways to reinforce bridges with this design, to increase the capacity and reduce the chance of this kind of failure occurring. We can selectively add supports so there are ways to redistribute the impact load, so the structure can remain stable and stay standing even if there's damage to a particular area."

The researchers hope that their recommendations can help address the differing factors that contributed to this incident, so that it will not be repeated. Updating databases to reflect minimum heights, automated reporting between the pilot car and the oversized vehicle, and structural reinforcement could prevent accidents and collapses like this one, increasing safety and preventing costly repairs, they said.

"A structural failure is obviously not desirable. However, the positive outcome is that we're taking the opportunity to learn from a failure," Fahnestock said. "We want to understand what happened so that we can be a part of preventing something like this from happening in the future, and thus provide a safer and more reliable infrastructure."

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transportation science; automotive and transportation; construction; civil engineering; vehicles; engineering and construction; aviation; engineering

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Structural, regulatory and human error were factors in Washington highway bridge collapse

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When an important bridge collapsed on Interstate 5 near Mount Vernon, Washington, in 2013, questions were raised about how such a catastrophic failure could occur. A new analysis by a team of civil engineering faculty outlines the many factors that led to the collapse, as well as steps that transportation departments can take to prevent such accidents on other bridges of similar design.

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With the new construction of the tapan zee bridge, a crane collapsed and caused major damage. i chose this article becuause i actually had to sit in traffic this even caused and saw the crane still collasped

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Around noon Tuesday, under blue skies, traffic on the Tappan Zee Bridge was moving smoothly, a welcome relief on a crossing cursed for its round-the-clock slowdowns. The typical workday crowd was making its way across the 3-mile span.

A Valley Cottage landscaper was bringing lunch to his crew in Irvington. A 26-year-old Spring Valley woman was in an ambulance returning home from a stop at Westchester Medical Center. A Boston man was on his way to see his brother in Pennsylvania.

And then there were the Pecorinis - Eddie and his wife, June. The Bronx couple was headed to the Catskills for a few days in their sturdy Ford pickup truck, weighing a stop at a favorite diner along the way.

Eddie Pecorini didn't see the 250-foot boom fall from a massive crane and crash into the cab of the pickup. But if Pecorini had been driving a little slower, the boom likely would have crashed through the truck's passenger compartment.
TRAFFIC: All seven lanes on the Tappan Zee Bridge are open
GREAT ESCAPE: Ex-NYC firefighter, wife escape disaster on TZB
EDITORIAL: A Tappan Zee miracle, this time
"I had a little angel on my shoulder," said Pecorini, 64, a retired New York City firefighter. "Let's chalk it up to a miracle."

Pecorini wasn't as lucky the next day. While making his way down the stairs of his Throgs Neck home, on the way to take a picture of the damaged cab for his insurance carrier, his flip flops came loose and he broke his left ankle. "At least I didn't die," Pecorini said. "I guess He has plans for me."

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Eddie and June Pecoroni said their pickup truck was hit by a crane when it collapsed onto the Tappan Zee Bridge on July 19, 2016. (Photo: Frank Scandale/The Journal News)

They're the words being tossed around most often as state and federal officials try to understand how a 250-foot boom crashed down on six lanes of traffic, midday on a Tuesday, and somehow managed to miss all but one of the 138,000 cars that cross the Tappan Zee every day. Four people suffered minor injuries.

"Nothing short of a miracle," Gov. Andrew Cuomo said at a press conference Tuesday.
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"If you had said to me that a boom could fall across the bridge and not hit anybody, I wouldn't have believed it," Cuomo told reporters afterward.

Construction industry veterans took different lessons from the crane's collapse. They question whether contractors spent enough time factoring in the risk of positioning a massive crane and 250-foot boom near one of the busiest crossings in the country.

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During a 40-year career, Robert Brehm oversaw some $1 billion in construction projects, among them the renovation of the Atlantic City Convention Center.

"One question is what precautions were taken to create a safe zone in anticipation that something could go wrong," said Brehm, a construction engineering professor at Drexel University. "You always have to anticipate that something could go wrong. You have to anticipate that failure is possible."

The Manitowoc crane was holding in place a vibratory hammer that drives piles into the Hudson River bottom. It was forced to operate in a narrow space beside the existing bridge, which is so close that it will share a footprint with its twin-spanned successor.

The work moved ahead without any traffic shutdowns, even though contractors had shut down traffic lanes in the past when their work encroached on the existing bridge. In April, the state Thruway Authority closed three of four northbound lanes on the existing bridge while workers drove six pre-fabricated poles under the existing bridge in an area where the southbound lanes will sit.

The timing of pile driving is also constrained by agreements with nearby communities who negotiated to have pile driving performed during daylight hours when construction noise would be less disruptive.

Strict timetable a factor?

And the project is under a strict timetable with a goal of having the first span open in the first half of 2017 and both spans completed by 2018.

The contract with Tappan Zee Constructors calls for the company to be fined for missing construction deadlines. It calls for the company to be fined $1,500 per minute in penalties if certain lanes on the bridge are not opened on time, according to the 5,000-page agreement obtained by The Journal News/lohud.com in 2013.

The contract noted that if the twin span wasn't substantially completed and open to traffic by April 3, 2018, Tappan Zee Constructors would be fined $120,000 for each day after the deadline. It's unclear whether that deadline has been adjusted.

A TZC spokesman declined to comment on Brehm's analysis or whether the timetable played any role in the decision to conduct pile-driving in the middle of the day so close to the existing bridge.

Brehm acknowledges that there are inherent risks in every project or work simply would not get done. "We're never going to eliminate risks but we need to mitigate them," Brehm said.

Probe continues

State and federal investigators are continuing their investigation into what caused the accident. They have already spent several hours interviewing the crane operator at the controls that day. He has not been identified.

Veteran crane operator Tom Barth, who spent 38 years working on cranes across the United States, said investigators will need to learn more about the hammer that the crane was holding in place. The hammer is held in place by "jaws," Barth notes.

"It's possible that the jaws on the hammer could be worn out," Barth says.

"He's pulling on it (the hammer) and if the pile slips out of the vibro-hammer and all that pressure is released, the boom will go up in the air," Barth says.

Barth said he'd be interested to see the daily and monthly inspection reports for the crane and hammer to determine if any defects in the equipment were noted or overlooked.

One veteran crane operator familiar with the Tappan Zee Bridge project told The Journal News/lohud this week that the hammer may have become stuck during the pile-driving operation, placing pressure on the cable that hoists the hammer upward and creating something of a slingshot effect. The worker asked that his name not be used because he is not authorized to speak with the media.

Tappan Zee Constructors conducts regular inspections of its equipment: Every crane on the site is inspected daily by its operator; monthly inspections are done by supervisors; annual inspections are handled by an outside company.

Crane operator doing 'better'

Union officials say the crane operator had more than 30 years' experience on heavy equipment and had performed similar pile-driving operations dozens of times.

Jeff Loughlin, the business manager for the International Union of Operating Engineers Local 137 in Briarcliff Manor, defended the work of the crane operator. "I'm certain there was no operator error," Loughlin said. "Can mechanical failure have played a role? System failure? Absolutely."

Loughlin said the crane operator spoke to state police investigators Thursday.

"He's a lot better," Loughlin said. "Obviously the first night he really didn't sleep at all. You know in his head he's trying to replay this thing."

For the membership of Local 137, the Tappan Zee Bridge replacement project was something of a godsend after the Great Recession took its toll on the construction industry. From 2008 through 2013, the unemployment rate ran as high as 45 percent among members, Loughlin said.

Union members make as much as $100-an-hour toiling in an industry where forces beyond their control - high winds especially - can turn an ordinary day into disaster.

"Any crane operator who tells you that there wasn't one part of his day that he wasn't stressed out is a liar," Loughlin said. "You work with iron workers. These guys are up 200 feet in the air and you've got to take a 10-ton piece and put it in their hands. I don't want to say we make it look easy but it's like a professional baseball player who makes baseball look easy."

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A crane was used during overnight to remove sections of road deck on Tappan Zee Bridge and drive piles near the Rockland shore South Nyack. (Photo: Peter Carr/The Journal News)

Like balancing a pencil

Brehm says keeping a crane's boom suspended in the air is a lot like balancing a pencil on a tabletop, where any unwelcome force can throw the crane out of balance and plunge the boom into an irreversible descent.

"Cranes are fragile structures," he said. "They are very long and very thin. And any time you exert a lateral force you can throw it out of balance."

Loughlin still recalls in minute detail the day he swung around the boom of his crane during a job in White Plains and saw a worker dangling from a concrete bucket. He swung the boom back safely and immediately called for a meeting with the company running the project.

"At some point in someone's career, most crane operators will tell you that there was a mishap - operator error, mechanical failure, equipment failure," Loughlin said. "At one point or another even the best of crane operators had something go wrong, not necessarily their fault. But you know what? You assume the responsibility when you sit in the seat."

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Crane collapse: Miracle or safety lapse?

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Around noon Tuesday, under blue skies, traffic on the Tappan Zee Bridge was moving smoothly, a welcome relief on a crossing cursed for its round-the-clock slowdowns. The typical workday crowd was making its way across the 3-mile span. A Valley Cottage landscaper was bringing lunch to his crew in Irvington.

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In north dikota construction on a iol pipeline has been stop due to native americans concerned that the pipeline could conatminate their water. I chose this because i have been seeing this all over the news

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A federal judge has granted part of a Native American tribe's emergency request to halt construction of a section of oil pipeline in North Dakota.

The Standing Rock Sioux Tribe fears the pipeline could contaminate its drinking water and sacred lands, as we've reported. U.S. District Judge James E. Boasberg's temporary restraining order is "a mixed victory for both sides," as The Bismarck Tribune wrote.

In the motion filed Sunday, the tribe had sought protection for a larger area along the planned route for the $3.8 billion Dakota Access Pipeline - which is set to span some 1,200 miles, from North Dakota to Illinois.

The area not covered by the judge's order includes lands that the tribe is particularly concerned about protecting. Work in that area, west of State Highway 1806, started over the weekend, according to Prairie Public Broadcasting,

Tuesday's ruling is part of a larger lawsuit filed in July seeking an injunction against the U.S. Army Corps of Engineers, which authorized the pipeline's construction. As we've reported, " the tribe filed a complaint with the United States District Court for the District of Columbia, arguing that the Army Corps did not follow proper procedure when it gave Dallas-based Energy Transfer Partners the go-ahead to build the pipeline."

The judge is expected to rule Friday on whether to grant the tribe's request for an injunction.

In the tribe's emergency motion, the Standing Rock Sioux accused the developer, Energy Transfer subsidiary Dakota Access LLC, of razing areas on private land that the tribe's cultural expert recently discovered were significant. The tribe described the events in court documents:

"In the afternoon of Friday, September 2, 2016, the [Standing Rock Sioux Tribe] further submitted recently discovered evidence of an astonishing archaeological find. This find concerned historically, culturally, and religiously important stone features and grave markings to the successors of the Great Sioux Nation, including graves of chiefs, warriors and Bear Medicine healers. These formations and grave sites are adjacent to and in the pipeline's proposed right-of-way approximately 1 to 2 miles away from the Lake Oahe crossing site. Less than 24 hours after SRST's filing, Dakota Access desecrated and destroyed the sites described in SRST's declaration."

The company responded that it "is not destroying and has not destroyed any evidence or important historical sites."

Tribal Chairman Dave Archambault II told Prairie Public Broadcasting that he is disappointed with Tuesday's restraining order "because I know more of our sacred sites are going to be destroyed. ... I'm OK with the fact that we know there's not going to be any construction near the camp on the east side of Highway 1806. I'm not happy with the ruling, however, because there's a lot of land being destroyed."

Tensions over the pipeline have escalated recently. Hundreds of Native Americans from tribes nationwide have camped near the construction site in North Dakota. As we reported, "one demonstration over the weekend turned violent. Some protesters ended up bloodied and the local sheriff said three private security officers had been hurt."

In a video posted to Facebook on Tuesday, Archambault said that "we still have to remain peaceful and respectful. We still have to think about what we're going to leave behind after all of this."

He added: "It's not over. We still have a long ways to go."

In a separate incident, North Dakota authorities have issued arrest warrants against Green Party presidential candidate Jill Stein and vice presidential candidate Ajamu Baraka on charges of criminal trespass and criminal mischief. "Video displays Stein and Baraka spray painting construction equipment on private property," the Morton County Sheriff's Department said in a post on Facebook, adding that the crimes allegedly happened during a protest on Tuesday.

Stein addressed the possibility of charges in a post on Twitter on Tuesday, and then asked, "Will they charge the oil company that razed sacred burial grounds?"

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Temporary Order Halts Construction On Part Of North Dakota Pipeline

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A federal judge has granted part of a Native American tribe's emergency request to halt construction of a section of oil pipeline in North Dakota. The Standing Rock Sioux Tribe fears the pipeline could contaminate its drinking water and sacred lands, as we've reported. U.S. District Judge James E.

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The reason why I choice this company is because I would like to work for a company that makes a lot of money and is big enough to keep me working. Skanska is the 3rd biggest company and has projects all over the world.

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Skanska reaches financial close on LaGuardia project in New York, USA, worth USD 2.8 billion | www.usa.skanska.com

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Skanska has, as a member of LaGuardia Gateway Partners, reached financial close and executed a lease agreement with the Port Authority of New York and New Jersey (PANYNJ). The Public Private...

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Tishman is a well known construction company. I choose this company because they constructed buildings Iam familiar with. Such as the world trade center and the javis center.

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Harbor fields electric company is a residential and commercial company I currently work for. I started out as a helper now moved up to junior mechanic. I have been working for them for 4 years now.

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During one of classes this semester a friend of mine presented and internship he did. This was the company he worked for, they are a heavy civil construction company, and I liked that they did high risers in new York city close to where I live.

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T.G. Nickel & Associates is an experienced construction management and general contracting firm serving clients in the academic, corporate interiors, healthcare, landmark restoration and residential markets. For nearly two decades, our clients have depended on us to provide the honest, straightforward solutions needed to successfully guide a project from concept to completion. On every project-no matter the size-we make decisions with our clients' best interest in mind, always striving to provide the highest standards in quality, schedule and cost.

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About Nickel T.G. Nickel & Associates is an experienced construction management and general contracting firm serving clients in the academic, corporate interiors, healthcare, landmark restoration and residential markets. For nearly two decades, our clients have depended on us to provide the honest, straightforward solutions needed to

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Mccarthy is a heavy civil construction company out of dallas texas. I would love to get into heavy civil construction, building bridges and skyscrapers is where I want to be

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Civil Construction & Heavy Civil Construction | McCarthy

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Discover McCarthy's commitment to quality in civil construction-from transportation projects like highways and light rail to other heavy civil construction.

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my second year in the electrical program I took the linesman course and loved it. I would love to work for a utility company and even maybe work as a lineman for a few years then go into construction management.

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c7
The electrical construction company cm richey was the first construction comoany I worked for. Even before I went into the electrical program I workd as a helper for this company and they really helped me understand the basics of electrical.

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Throughout my two years in the construction management program I have heard of this company from both my peers and my teachers. Everything I heard about was good things and I even researched the top construction agency in new York and Whiting Turner was number one.

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Since 1909, the firm has been guided by the principles of integrity, excellence and customer delight in the delivery of construction services.

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Gilbane is a company I have become pretty familiar with. My good buddy Chris kier who graduated from suny delhi construction management program has been a project manager for this company for the past couple of months. I went to one of his projects over the summer and really got taught the ins and outs of his responsibilities

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Gilbane Building Company | Gilbane Development Company

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Gilbane, Inc. is one of the largest privately held family-owned construction and real estate development firms in the industry. Learn more.

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Structure tone is a big company that has projects all over the world. I also have a uncle that works at this company, this is where I am planning on doing my internship.

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Structure Tone is a leading global construction management company and general contracting service provider. View our featured projects to see our work