UPDATED: 121-year-old water main ruptures in downtown SF

San Francisco water and emergency officials warned of traffic impacts at Fourth and Howard streets after a water main broke Friday morning. (Courtesy SFPUC via Twitter)

San Francisco water and emergency officials warned of traffic impacts at Fourth and Howard streets after a water main broke Friday morning. (Courtesy SFPUC via Twitter)

UPDATE, 6:10 p.m:  San Francisco Public Utilities Commission crews have completed repairing a water main break that occurred earlier this morning in the city’s South of Market neighborhood.

Although the break has been fixed, Fourth Street between Howard and Folsom streets remains closed this evening as crews continue to repair the street, according to SFPUC.

Crews are expected to continue working on the street into late tonight, SFPUC officials said. The 12-inch main was first reported at around 3:15 a.m. The area was closed all day as crews worked to repair it. Additionally, water was initially shut off to about 200 customers but has since been restored, according to SFPUC spokesman Charles Sheehan.

The break also resulted in some flooding to the Moscone Center Garage, SFPUC officials said.

SFPUC officials believe the water main’s age was a likely factor in the break, as it was built in 1895.

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