According to Pittsburgh’s Action News on July 23rd:
A water main break disintegrated a portion of a sidewalk in Carnegie and sent water gushing into a business Wednesday night.
Pennsylvania American Water says an eight-inch line broke on Third Street near Third Avenue. At least 12 customers were without service into Thursday morning while crews repaired the break. Water blasted into the window of Mike’s Laundromat and covered the floor in mud.
“All you could see is the water gushing out,” said Zach Burdzel, who lives nearby. “It was against the window and it was everywhere.”
The owner of the laundromat said there was 10 inches of water on the floor at one point. A clean-up crew spent Thursday morning restoring the business.
Third Street was also covered in rocks and water up to the stoops of homes across the street.
“Water was shooting up four to five feet in the air,” said neighbor Rodney Goebeler.
The water company says their insurance company will meet with the business about the damage.
The company estimates the pipe to be more than 50 years old.