This was build near me beginning in 1999 and was completed in 2003. The Project included three dams.
http://dvmarina.com/.
My cousin is working on a dam project in Calaveras County. Seems like they are using the low water to rebuild a dam. More needs to be done but nothing new in the last 40 years isn’t true.
We've built 5 dams since 1959.
CalWatchdog.com: CA added just 5 dams since 1959
5. Diamond Valley Lake
Diamond Valley Lake is an 800,000 acre-feet off-stream reservoir located in Riverside County in Southern California. The Metropolitan Water District of Southern California built it in 1995.
It is also not counted as contributing to statewide water storage. It is a backup reservoir that holds surplus water for droughts and emergencies for Southern California only.
The reservoir is connected to the State Water Project by the 44-mile Inland Feeder pipeline. Diamond Valley Lake only takes water from the State Water Project when surplus water is available for storage for future use.