Posted on 02/25/2020 5:30:49 PM PST by BenLurkin
Worried that an earthquake could collapse a big dam south of San Francisco, officials have ordered its reservoir to be completely drained by October to reduce the risk of floodwaters spilling into Silicon Valley.
The 240-foot (73-meter) high earthen Anderson Dam, built in 1950 between San Jose and the community of Morgan Hill, poses too great a risk of collapse and must be fully drained by Oct. 1, according to the Federal Energy Regulatory Commission, which regulates dams, the Mercury News reported.
Since 2009, the dam’s water level has been kept at a maximum of 74 percent of capacity because of an assessment that it could fail in a 7.2 quake. The reservoir is built along the Calaveras Fault. On Monday, amid the threat of another drought in California, Anderson Reservoir was just 29% full.
A seismic retrofit project has been underway because of its state classification in 2017 as being an “extremely high” downstream hazard.
The Santa Clara Valley Water District said in a statement Monday that officials agree with the commission’s assessment that the reservoir should be drained ahead of the retrofit project, which is “complicated and time consuming.”
More than 14,000 residents had to be evacuated in 2017 as water from swollen Coyote Creek, downstream of the Anderson Reservoir, flooded homes and temporarily shut down a portion of a freeway.
It came the same month as a spillway failed at the nation’s tallest dam, in Oroville in Northern California, leading officials to order the evacuation of nearly 200,000 people.
Stored water is an important part of the south San Francisco Bay Area’s supply — with enough water for the annual needs of at least 130,000 people as well as what the district considers an emergency supply
(Excerpt) Read more at ktla.com ...
Why not just build another dam below this one?
I knew that dam was a hazard back in 1984 (college geology class project).
Keep an eye on the deep state. This move smells like another of their schemes.
Why not just depopulate to:
A. Decrease risk of damage from dam failure.
B. Avoid need to store water.
Like the farmers and the Delta fish?
Roses love sunshine violets love dew
earthquakes love nothing, not even you
That’s a major source of stored water. They’ve known it for decades. Lousy dems don’t care
I smell a rat. Very fishy they decide to do this right after the president forces them to send water to the farmers.
I can’t help but find the timing suspect.
Shasta dam may be raised another 20’ according to my rumor source.
The endless drought came to an end. There’s too much water. They need to make water scarce again so they can put the squeeze on people.
Wow! The intersection of two of my favorite youtubers
Juan Brown(blancolirio) and Dutchsinse.
I can’t wait to hear what they have to say about this.
Maybe Bill Whittle will even have some interesting input.
7
The sudden failure of the dam above would take out the one below due to sudden, max force of water and earth pushing on it.
Also known as hydrostatic pressure.
They are not acting
Of possible interest...
“I smell a rat. Very fishy they decide to do this right after the president forces them to send water to the farmers.”
The dam has been known to be unsafe for over 30 years.
Of course they should replace it rather than just take it down.
But its water was NEVER part of the Central Valley Project and never went south. It was all used locally.
Once the new dam is completed, you blow a hole in the old one. Like Lake Lewisville and Palestine. They both had former smaller dams. I am sure there are others.
There is nothing left to build a damn top below this one. It’s pretty much flat to the south past Gilroy and to the north to the south San Francisco Bay.
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