Los Angeles pipe rupture: A look at the numbers

Water has filled the stairs to a parking structure adjacent to the main entry doors of Pauley Pavilion, home of UCLA basketball, after a 30-inch water main burst on nearby Sunset Boulevard Tuesday, July 29, 2014, in Los Angeles. Water also reached the playing floor of the basketball arena.
Water has filled the stairs to a parking structure adjacent to the main entry doors of Pauley Pavilion, home of UCLA basketball, after a 30-inch water main burst on nearby Sunset Boulevard Tuesday, July 29, 2014, in Los Angeles. Water also reached the playing floor of the basketball arena. (AP Photo/Matt Hamilton)

LOS ANGELES – 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 20 million gallons had spilled from the pipe by Wednesday afternoon and it continued to gush about 1,000 gallons a minute even though crews had reduced the flow. At its peak on Tuesday, the pipe was spewing 38,000 gallons a minute. Officials say it will take at least another 48 hours to complete repairs.

- 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.

- About 960 vehicles were in two subterranean garages that flooded, and many were totally submerged, UCLA says.

- The amount of water that spilled is enough to fill more than 1,000 average-sized backyard swimming pools, or more than 400,000 bathtubs.

- It’s enough water to serve more than 100,000 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 a 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.

- 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.

blog comments powered by Disqus