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Second cracked bar found on $2B San Francisco transit hub

The $2.2 billion Salesforce Transit Center opened last month.

(AP Photo/Lorin Eleni Gill, File)

SAN FRANCISCO – A second bar in San Francisco, in the district celebrated new $2 billion transit terminal shows signs of cracks, an official said Wednesday, a day after a crack in a nearby support beam to exit the building opened last month.

The first crack was found by workers installing roofing tiles Tuesday, spans a width to keep a park on the three-block-long Salesforce Transit Center and runs on a downtown street, said Mark Zabaneh, executive director of the Transbay Joint Powers Authority, which operates the facility.

He said that the problems were localized in the area of the transit hub, but it would remain closed “at least until the end of next week”, such as inspections continued. It is not yet clear what the cause of the cracks in the facility, which includes a bus, a terrace, a towering sky-lit, and the central entrance hall and a large park with an amphitheatre.

“We are working hard to remedy the situation,” Zabeneh said. “We are very disappointed about what happened; we will get to the bottom of this.”

Mayor London Breed said that the building would remain closed until it was safe to reopen. Its role in the broader transportation system is too important “not to act quickly to provide definitive answers to the public, and someone should be held responsible once the cause is determined,” she said in a statement.

Engineers decided to shut down the transmitter for about 5 hours Tuesday, as the rush hour began, once they learned the size of the crack.

A pendulum is directed to the transit center after the close on Tuesday.

(Copyright 2018 The Associated Press. All rights reserved)

The transit hub, a prominent presence in the city’s South of Market neighborhood where construction is booming, sits next to the so-called sinking condominium, Millennium Tower, which has settled about 18 inches since its opening on a former landfill in 2009.

Homeowners have filed several lawsuits against the developer and the city, some claimed that the construction of the transit center, the cause of the Millennium Tower to sink.

Zabaneh said he did not believe the cracked beams are connected to the ongoing problems at the Millennium Tower.

Engineer Joe Maffei also said that the problems at the terminal appear “nothing at all” at the Millennium Tower to sink and tilt. He said: there are no public reports of a similar settlement of problems with the terminal.

The first crack was found in the vicinity of a weld on a stress-bearing horizontal bar and the second on a parallel beam, Zabaneh said. The american steel was used in the construction, ” he said.

Construction experts say that it is extremely rare for steel girders that support buildings to crack.

Engineer David Friedman said it is likely that the beams came without a tear, but that as soon as the weight of the roof garden and other structures are added, “new stresses may have aggravated the possible manufacturing errors.”

Commuters enter a temporary terminal after the building was closed.

(Copyright 2018 The Associated Press. All rights reserved)

The beams probably passed inspection after the installation, Maffei said.

“If that’s the case, it is likely the welding caused the problem,” he said.

The buses were rerouted to a temporary transit center about two blocks away that was used during the construction. A downtown street that runs under the bar, was also ordered closed for an indefinite period of time, causing traffic chaos at the same time, some streets are closed for a conference sponsored by Salesforce that was expected to draw 170,000 participants.

Numerous towering apartment buildings, have increased in the booming South of Market neighborhood and a number of with multiple construction projects underway. Officials agreed in 2012 to demolish building-height restrictions to encourage growth in the vicinity of the transit hub and the San Francisco lures technology companies of Silicon Valley.

Julianna Cheng, 32, who lives nearby, burst into laughter when he was asked about the cracking in the $2.2 billion transit center.

“I find it disappointing, but also kind of funny because they built a really big, they spent a lot of money,” she said. “I feel like the money should be used for a lot of other things.”

The online business software company Salesforce, which are open adjacent 61-story Salesforce Tower earlier this year bought the naming convention of the rights of the transit center in 2017 as part of a 25-year, $110 million sponsorship deal.

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