It happened around 5 p.m. on Count Road, when according to Suez Water, a 24-inch underground water main shattered.
The pressure in the main was reportedly so strong that is ruptured the asphalt right in front of a Honda dealership, which had brand new cars sitting on the street.
"The water was rising, and there were pieces of pavement coming up out of the road. It was alarming," said Mary Beth Lawlor of Honda of Tenafly.
Drivers were being urged to avoid the area.
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