The incident disrupted subway service on the No. 1, 2 and 3 lines, with no trains running between 42nd Street and 96th Street, according to the Metropolitan Transportation Authority. Several bus routes were also detoured.
The break occurred around 62nd Street and Broadway around 5 a.m., officials said. Flooded roads spanned Broadway and Columbus Avenue, roughly from West 61st Street into West 65th, according to officials. Video on social media showed water gushing up from the water break, in some places as deep as 1 foot.
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Naz Shirzad, 47, who has a coffee and bagel stand on 62nd Street, said a friend called him about the break about 4:45 a.m.
“He said the water just burst, it just exploded,” Shirzad said.
Shirzad said he arrived as the water was still flowing. He saw it gushing from a fire hydrant and shooting toward a building at the corner of 62nd Street and Broadway.
“It was like a river when the water coming out,” he said.
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Throughout the morning, commuters were confronted with a lake of brown water lapping at the steps of Lincoln Center, and fire trucks gathered nearby.
It was unclear how long it would take to resolve the incident or clear up residual delays. A spokesman for the Department of Environmental Protection, Ted Timbers, said that its crews had isolated the source of the leak and shut off the water by 8 a.m.
As of 11 a.m., much of the floodwaters on the street level had been cleared.
The city’s subway system is permeable by nature: As it weaves underneath the streets, it is constantly surrounded by groundwater.
The transit authority has the capacity to siphon off up to 1.5 inches of rain per hour, but a massive flow can overwhelm the system.
By the time the water was shut off, there were already 500,000 gallons in the subway system, said Frank Jezycki, executive vice president and chief operating officer of the city’s subway system.
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Tim Minton, a spokesman for the transit authority, said the water in the affected subway stations Monday rose to the level of the rail — far lower than the platform level — when service was disrupted starting around 5 a.m.
“It’s a mess,” Minton said. “We’ve lost a main artery of the subway system in rush hour, and until the Department of Environmental Protection can do the work that they need to do, we’re essentially beholden to the fact that we have water on the tracks.”
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Jezycki said that the transit authority expected service to be restored by the evening rush hour.
Around 10 a.m. Monday, dozens of workers were underground at the 66th Street-Lincoln Center station working to clear the water. They used portable pumps to remove some of the water and hoses to siphon it up to the street.
Workers were also opening up machines and signaling equipment along the track to assess them for damage and ensure they were functioning properly.
New York City has about 6,800 miles of water mains that carry more than 1 billion gallons of water to residents and businesses every day. In the past five fiscal years, the city recorded an average of 474 breaks a year, according to the Mayor’s Management Report, which assesses city services.
The city already has one of the oldest networks of underground infrastructure in the world, and aging pipes and utilities are particularly susceptible to leaks, breaks and cracks.
Wintry conditions typically make problems worse, particularly with “freeze-thaw” cycles in which moisture in the ground expands and then contracts, putting pressure on the pipes, Timbers said.
Extreme weather fluctuations such as the one that occurred over the weekend, when temperatures soared above 60 degrees Friday only to retreat toward the 30s Monday, also posed a challenge.
“It used to be that it would get cold and it would stay cold in the winter, and you’d just have the early winter and late winter weather fluctuations,” Timbers said. “Now we’re seeing many more fluctuations during the winter season.”
The Fire Department said that there were no reports of injuries, but some people reported that the water was leaking into basements.
The break forced street traffic to reroute away from the flooding. Cars inched along streets that were already typically congested, and commuters waited three deep at bus stops, asking bus drivers to clarify what route they were taking.
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Outside the Port Authority bus terminal, a bus supervisor at the M104 layover stop told a crowd of commuters that the break had put service 20 to 30 minutes behind schedule.
As a chorus of voices pelted him with questions, one woman’s broke through. “You’re kidding,” she said.
The supervisor replied: “I can’t make this up.”
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As subway passengers sought alternate routes, several stations were also mobbed. The stairways at the 96th Street station on the B and C lines were packed with commuters seeking an alternate path to parts of the Upper West Side.
Ricardo Rose, 31, who lives in West Harlem and usually takes the 2 or the 3 train, said he was forced to exit at 96th Street.
Rose, a personal trainer, said he ran several blocks to the nearest B and C subway station so he could try and make a 10 a.m. meeting on the city’s east side.
“I’m running there right now,” Rose said as the doors of his C train shut. “I just got to sprint everywhere now.”
At the busy transit hub at Times Square and the Port Authority, the platforms were so crowded that lines stretched up staircases and onto the concourse.
“It’s so crowded on the platforms,” said Bianca Stabilo, 29, who emerged at 44th Street and Eighth Avenue.
Stabilo described the situation as mayhem.
“Nobody can get on the A, C or E lines going uptown,” she said.
At least two buildings on West 62nd Street were without water service as of 10 a.m. Monday.
Dale Elliott, 52, was visiting the city from Virginia and staying at the West Side YMCA on 63rd Street. He said that many people used the sinks and showers in the building, but Monday, they were not permitted.
“They told us we can’t take a shower,” he said.
This article originally appeared in The New York Times .