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What if California's dams fail?

nytimes.com

21–30 of 75 posts

Re: What if California's dams fail?

#21

Native peoples have an oral history that the Sacramento and Central valleys can turn into inland seas during periods of unusual rain. https://en.wikipedia.org/wiki/Great_Flood_of_1862

Apparently the non native people of Wikipedia also have a history of it

Re: What if California's dams fail?

#22
post #13

Was hoping to hear more about other dams, the article focuses on Oroville. Lake Berryessa for instance is a concrete dam, much more like hoover than Oroville. It was built before they realized there was a nearby active fault, the Green Valley Fault. Lake Oroville (in the NYT article) is the 14th largest lake in California, Berryessa is #11. Lake Oroville does hold twice as much water when full though The big concern…

If you look at a terrain map [1] it looks like things flatten out a lot not far below the dam. As you say, bad for Winters and Davis, but not "terrifying wall of water" bad for much else downstream.

Re: What if California's dams fail?

#23
Our family is bunch of armchair hydrologists. Every random few months we trek from Bay area to Oroville to count the bathtub rings and study the drought situation.

Recently we trekked to see the newly formed Tulare Lake. FWIW, Tulare lake ain't evaporating for another 2 years. Imagine the same size storm repeats for 10+ years.

Re: What if California's dams fail?

#26

Could one make a damn self repairing by using coolant lines and woodfibers aka https://en.m.wikipedia.org/wiki/Pykrete ? I imagine it similar to the bodies repair facilities, using the electricity from the damn to uphold cooling?

Even if this was technologically feasible, maybe the cost would be prohibitive. It would be much cheaper to not build the dam in the first place or close it, or just build alternative energy sources (solar, wind, etc.)

Re: What if California's dams fail?

#27
post #23

Our family is bunch of armchair hydrologists. Every random few months we trek from Bay area to Oroville to count the bathtub rings and study the drought situation. Recently we trekked to see the newly formed Tulare Lake. FWIW, Tulare lake ain't evaporating for another 2 years. Imagine the same size storm repeats for 10+ years.

Why should we imagine that?

Re: What if California's dams fail?

#28

I recently read "Cadillac Desert" by Marc Reisner which I highly recommend if you're interested in the history of water issues in the west and California in particular. A great portion of the book is devoted to dams. The gist of it is that many dams of questionable utility were constructed throughout the 20th century due to pork barrel politics and the unstoppable bureaucratic engines of the Bureau of Reclamation and…

Pbs made a great series based on the book too.

Re: What if California's dams fail?

#29
post #23

Our family is bunch of armchair hydrologists. Every random few months we trek from Bay area to Oroville to count the bathtub rings and study the drought situation. Recently we trekked to see the newly formed Tulare Lake. FWIW, Tulare lake ain't evaporating for another 2 years. Imagine the same size storm repeats for 10+ years.

Why should we imagine that?

The answer to OP—-dams failing?

Re: What if California's dams fail?

#30
post #2

Daniel Swain, who is quoted in the article, is a fantastic follow if you live in CA - he tweets at @weather_west and is a phenomenal resource for understanding what’s actually driving the weather patterns in California.

I'd recommend weatherwest.com which he runs -- lots of informed folks and Daniel's blog posts.
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