BOSTON — A large water main break flooded parts of Boston’s Financial District overnight, leaving roads underwater and prompting an emergency response from repair crews near busy South Station Friday morning.
The Boston Water and Sewer Commission was spotted working near Purchase Street and Summer Street. While the standing water had largely receded by daybreak, crews still blocked off portions of Purchase Street with cones and caution tape.
Boston 25 News observed crews continuing their work near South Station, where traffic restrictions remained in place.
Crews also blocked off the Interstate 93 southbound off-ramp to South Station and the Mass Pike.
Video captured earlier in the morning on nearby Federal Street showed water pouring across roadways, creating significant flooding in the area. At one point, Boston 25’s overnight photographer was held back from getting closer because part of the roadway could collapse.
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The water covered large sections of the street, making travel difficult and creating hazardous conditions for motorists and pedestrians. At times, the scene resembled a river as water rushed through the Financial District.
The Boston Fire Department also responded overnight.
In an update shortly before 6:30 a.m., city officials said crews shut down a 16-inch main, not impacting services for area residents and businesses.
BWSC crews shut down 16” main at Summer and Purchase Street. No services impacted.Traffic impacted in the area. No additional updates at this time. Updates to follow.
— BWSC (@BOSTON_WATER) October 2, 2026
According to the Boston Water and Sewer Commission, repairs to the water main break are being deferred to Saturday because no one is currently without water. Crews are working to clean up the area and reopen it to traffic. However, it’s unclear exactly when the roads will reopen.
Drivers heading into downtown Boston should watch for ongoing lane closures and traffic impacts around Purchase Street near South Station as crews continue repairs.
This is a developing story. Check back for updates as more information becomes available.
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