Buffeted by torrential El Niño downpours, menaced by naturally occurring asbestos and threatened by a major nearby fault, the team constructing the Calaveras Dam Replacement Project in the mountains ...

ALAMEDA COUNTY (CBS SF) -- The San Francisco Public Utilities Commission broke ground Friday on a new Calaveras Dam in unincorporated Alameda County, part of a major seismic upgrade to the Hetch ...

SUNOL, Calif. (KGO) -- A major milestone has been reached in the East Bay to protect drinking water supplies in the event of a major earthquake. A new dam has been completed at the Calaveras Reservoir ...

The days are numbered for the old tower and decorative arches at Calaveras Dam, which holds back the reservoir that is San Francisco's largest local source of drinking water. Workers for the San ...

Construction crews this week finished building Calaveras Dam, a 220-foot high structure at Calaveras Reservoir on the Alameda-Santa Clara County line. The $823 million project is the largest dam built ...

Since July 2010, the San Francisco Public Utilities Commission has been hard at work on one of the biggest engineering projects in the nation, the Hetch Hetchy Water System Improvement Program. At a ...

Utilities crews say two recent earthquakes have not caused any detectable damage to the Calaveras Dam, a 75-year-old structure holding back a reservoir that straddles Santa Clara and Alameda counties.

SAN FRANCISCOSAN FRANCISCO — Work to replace a seismically unsafe dam that restrains an important San Francisco Bay area reservoir will begin later this year. The San Francisco Planning Department and ...

CALAVARAS DAM (CBS SF) -- The largest California reservoir project in 20 years has reached a significant construction milestone and uncovered a treasure trove of unique artifacts. The new Calaveras ...

Work to replace an 85-year-old dam holding back the Bay Area's biggest reservoir will begin later this year, providing a crucial insurance policy for San Francisco's water supply and a cornerstone in ...

WATCH: A drone’s view of the Calaveras Dam. Click here if you are having trouble viewing the gallery or video on a mobile device. SUNOL — After toiling away in the remote hills east of Interstate 680 ...

Since July 2010, the San Francisco Public Utilities Commission has been hard at work on one of the biggest engineering projects in the nation, the Hetch Hetchy Water System Improvement Program. At a ...