Californians know another "big one" will be coming someday. In preparation, the state's major water suppliers have been working to seismically retrofit key infrastructure, but vulnerabilities remain.
Some answers to questions about the $16.7 billion Delta tunnels project on Sacramento's doorstep that just took a giant step closer to becoming reality.
Southern California’s biggest water agency voted Tuesday to shoulder most of the cost of replumbing the troubled center of the state’s vast waterworks, committing nearly $11 billion to the construction of two massive water tunnels.