Los Angeles Pipe Rupture: A Look at the Numbers

LOS ANGELES (AP) — A torrent of water spewed from a nearly century-old pipe that burst in Los Angeles, shutting down a section of Sunset Boulevard and inundating the campus of UCLA. Here are some of the numbers behind Tuesday’s rupture:

— Some 8 million gallons spilled from the pipe over nearly 3½ hours, at a rate of 38,000 gallons per minute.

— The water main is a 30-inch riveted steel pipe that delivers water at a high velocity from Upper Stone Canyon Reservoir. It was installed in 1921.

— More than 730 vehicles were in two subterranean garages that flooded, and about half the vehicles were totally submerged, UCLA says.

— The amount of water that spilled is enough to fill more than 500 average-sized backyard swimming pools, or about 200,000 bathtubs.

— It’s enough water to serve more than 52,500 Los Angeles Department of Water and Power customers in a single day.

— When the pipe is operational, water flow is estimated at 75,000 gallons per minute.

— The Department of Water and Power’s aging, 7,200-mile water system provides approximately 500 million gallons of water to customers each day. About 2 percent of that total was lost Tuesday.

— In 2009, a team of analysts found 90 percent of the department’s ruptures happened in cast-iron pipes that were corroded.

— When Gov. Jerry Brown declared a state drought emergency in January, he asked California residents and businesses to voluntarily reduce their water consumption by 20 percent.

Copyright 2014 The Associated Press. All rights reserved. This material may not be published, broadcast, rewritten or redistributed.

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