One-of-a-kind slip joint ensures steady future water distribution for S.F. Bay Area

Sponsored by


FREMONT, CA, May 2, 2014 -- The installation of a one-of-a-kind, 77-ton seismic slip joint in the city of San Francisco, Calif., will ensure that the Bay Area's water system will survive another potential large earthquake in the soon or distant future.

The joint sits atop three major traces of the active Hayward Fault and can compress up to 6.5 feet when the earth begins to move, so that the water lifeline distributed to 2.6 million water users in the region doesn't break.

It has been over 140 years since the last major earthquake on the Hayward Fault, and geologists now consider it to be at risk for another major earthquake in the near future. "It is just a matter of time before the next major earthquake hits the San Francisco Bay Area," said the Water System Improvement Program Director Dan Wade. "We are literally in a race against time to safely rehabilitate and upgrade our extensive water infrastructure."

One-of-a-kind 77-ton Slip Joint to Ensure Future Water Reliability for the Bay Area (Photo credit: San Francisco Water)


The slip joint was specially manufactured in Texas for one trace of the Hayward fault. It will work as a system with two specially-constructed ball joints and a concrete articulated vault to protect the Bay Division No. 3 water pipeline.

Construction will continue in Fremont through early 2015 in order to connect the new high-tech pipeline to the regional water system and to restore the roadways and landscape above the pipeline. This project is part of the $4.6-billion Water System Improvement Program to repair, replace and retrofit the Hetch Hetchy Regional Water System. The 82 projects stretching from the Central Valley into San Francisco are more than 80 percent complete.

See also:

"San Francisco Nears End of $4.6 Billion Improvement Program"

"New pipeline provides backup in earthquake country"

###

Sponsored by

Did You Like this Article? Get All the Water Industry News Delivered to Your Inbox or Mailbox

Subscribe to one of our magazines or email newsletters today at no cost and receive the latest information.

TODAY'S HEADLINES

NGWA announces recipients of 2015 groundwater industry awards

The National Ground Water Association recently announced the recipients of its 2015 Awards of Excellence, Outstanding Groundwater Project Award and Divisional Awards.

Seven public works professionals earn APWA Certified Stormwater Manager Credential

The American Public Works Association announced that seven public works professionals from North America have recently earned their Certified Stormwater Managers credential.

Paddlers to participate in Missouri River race to support water preservation

Missouri American Water has announced that about 600 paddlers will launch their boats in Missouri River 340 to participate in a race being held on Tuesday, July 28, in Kansas City, Ks.

Green solutions needed in North America for excess stormwater management

According to the Joint Public Advisory Committee of the Commission for Environmental Cooperation, North American communities that are on the front lines of managing excess stormwater flows need strong engagement from governments and civil society.

FOLLOW US ON SOCIAL MEDIA

  

 


© 2015. PennWell Corporation. All Rights Reserved. PRIVACY POLICY | TERMS AND CONDITIONS