SAN DIEGO (CBS 8) - The commute in and out of downtown was challenging for drivers Wednesday, after a major water main break early in the morning.
The streets were empty at 3:30 a.m. when a water main break at F Street and 14th Street in the East Village quickly turned into a sinkhole.
Mud and rocks flowed down several streets before city water crews could respond and shut the pipe down.
The sinkhole sat in the direct path of commuters exiting SR 94 in downtown San Diego. So drivers were diverted onto 15th Street as soon as they come off F Street, which is creating a major back-up.
The 16-inch water pipe that ruptured was made out cast iron, which the city stopped using in the 1950's. Water crews estimate the pipe is probably 70-years-old and cold weather makes old pipes, like that one, brittle and susceptible to snapping.
About five customers in the 1300 and 1400 blocks of F Street lost water service, according to Arian Collins with the San Diego Water Department.
Collins estimated the repairs would not be finished until 8 or 9 p.m., but the main was repaired and the sinkhole filled in, with the road reopening Wednesday afternoon.