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Tons of water flooded the UCLA campus in Westwood after a gusher of a water main break sent thousands of gallons of H20 down the hill from Sunset Boulevard.

The break at 10630 Sunset Blvd. was reported at 3:24 p.m., according to Brian Humphrey of the Los Angeles Fire Department.

Sunset was closed down and …

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 … people and vehicles were stranded by water that was more than knee-high, he said. A “trio of stranded motorists” were assisted by first responders, Humphrey said.