Seismic upgrades of 2 pipes under way for Calif.'s $4.6B water project

Almost 100 workers are doing prep work for a $92 million project that will seismically upgrade the water pipes in South Fremont, Calif., as part of the $4.6 billion Hetch Hetchy Water System Improvement Program of the San Francisco Public Utilities Commission. The new pipeline will be covered with an "articulated box," a customized concrete device divided into several segments, which allows for spaces between each segment. "Each segment will have the ability to rotate and move individually during a quake while protecting the pipe inside," said Bryan Dessaure, the project's manager.

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