China begins construction of 'world's tallest' dam (314-metre high..What could possibly go wrong?)

Yahoo News ^ | 7/16/15 | AFP

[NormsRevenge]

Beijing (AFP) - China has begun building a 314-metre (1,030-ft) high dam which will be among the world's tallest, officials said, as the country massively expands hydropower.

The Shuangjiankou dam on a tributary of China's mighty Yangtze river will be completed in 2022, the environmental ministry said on its website Tuesday.

The facility, costing 36 billion yuan ($5.8 billion), will be higher than the world's current tallest dam, the 305-metre Jinping-1, also in China.

China has been expanding its hydropower electricity generating capacity as it seeks to reach a goal of obtaining 20 per cent of its power from non-fossil sources by 2030.

Beijing says reaching the target will help reduce growth in its carbon emissions responsible for climate change, the world's largest.

[NormsRevenge]

Oh wait, they already have a 305 metre high dam. Just dam.

[NormsRevenge]

The Three Gorges Dam on the Yangtze river is one of 85,000 hydropower facilities in China (AFP Photo/)

[AngelesCrestHighway]

What could go wrong you ask...? How about an earthquake for starters

[b4its2late]

85,000? Holy Crap!

[glorgau]

For instance, the height of Hoover Dam is 726 feet = 221.285 meters.

This thing will be almost half again as high as Hoover Dam.

[stephenjohnbanker]

Not worth a dam.

[stephenjohnbanker]

Now China can REALLY flood the markets!

[Red Badger]

THE BASE OF THAT DAM WILL HAVE TO BE REALLY HUGE!.....................

[SamAdams76]

Everybody always beating up on human progress. I want to see even bigger and higher dams. Especially in United States. Let's dam the Mississippi - I mean, really dam it. So when hurricane moves into the Gulf, we can just empty out the Mississippi south of St. Louis and let the surge flow upstream. We can divert the Mississippi water out to California where they need the water. We need to build big pipes.

I also want to see more skyscrapers. Higher skyscrapers. NYC is building out several more 1,000+ foot skyscrapers but I want to see higher than 2,000 feet. I want to see skyscrapers on top of skyscrapers. We can do it.

[Little Ray]

So, how many hectares of good farmland are they submerging to make this dam? How many people will be forcibly moved?

Gotta wonder.

[Old Sarge]

And they used the SAME DEVICE (building a dam) as the cover story for building the Arks that saved mankind in the movie “2012”...

[ßuddaßudd]

I wish we could build some dams around here...

[PATRIOT1876]

Does that dam say “Made in China”?

Run for high ground!!!

[needmorePaine]

Everybody always beating up on human progress. I want to see even bigger and higher dams. Especially in United States.

So you want the United States to be a dam nation?

[cripplecreek]

There are a lot of dams here in the USA. Many of them are small and don’t produce power but there are a lot of them here.

A year or so back the DOE released a list of some 800 dams here in the USA that could be feasibly brought back into power production with modern retrofits.

Back before there was a nationwide power grid, small dams produced power for surrounding areas. My great grandmother’s brother was a Switchman or whatever they were called. He lived next to the dam and maintained the equipment and controlled floodgates etc.

[cripplecreek]

I wish we could bring those we have back into production.

[molson209]

China has to spend the money they make from us on something ,LOL

[AppyPappy]

That’s money they aren’t spending on the military.

[TYVets]

What could go wrong?

Table Rock Dam in Missouri was completed about 1960. It is a flood control dam operated by US Army Corps of Engineers.

30 years after the dam was completely a study revealed that auxiliary flood gates were needed.

At elevation 931 Table Rock Lake is at full flood capacity. The ten Tainter gates are opened to accommodate additional lake inflow from the White River Basin including the James River and Beaver Lake discharge.

At elevation 937 Table Rock Lake is 6 feet above flood capacity. The ten Tainter gates are opened wider in an effort to stabilize reservoir rise. Outflow from the Lake under these circumstances will be nearing 200-300 thousand cubic feet per second (CFS).

Between elevations 937 and 942 the dam’s ten Tainter gates will be fully raised letting loose 450 thousand CFS into the Taneycomo Lake. This scenario would effectively submerge and destroy the powerhouse, power transmission grid, hatchery, and wreak serious destruction down stream. An illustration of how Table Rock’s ten spillways might appear under these circumstances mimics this: the floodgates will extend up and out from the structure, like eyebrows, shadowing the concrete spillways!

At elevation 942 if reservoir levels are not yet stabilized, the auxiliary floodgates are brought on line, in concert with Table Rock’s fully opened floodgates. This catastrophic protocol releases 1 million CFS of lake waters into Taneycomo and deals dreadful destruction to Branson, Hollister, Point Lookout and possibly the Taneycomo Dam.

Beyond an elevation 942 there is a danger of water overtopping the concrete dam and breaching the earthen structure, which imminently leads to cataclysmic structural failure and the uncontrolled release of the Table Rock Lake impoundment--nearly 3 million CFS of water.

SOURCE: [4]

[4] ^ Little Rock District Corps of Engineers

Today's lake level is 928 feet above sea level.

Construction of the auxiliary gates was completed in 2005 some 45 years after Table Rock Dam was built. They got lucky!

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1 cubic foot of water = 7.5 gallons of water