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Author Topic: Up the Yangtze
bliter
rabble-rouser
Babbler # 14536

posted 19 January 2008 03:01 PM      Profile for bliter   Author's Homepage        Edit/Delete Post  Reply With Quote 
"How can that be?" That was the first question that came to mind, yesterday, on reading of the fresh water problem that millions of Chinese are facing with severe drought rendering the Yangtze River the lowest it has been for over a hundred years - so low that some vessels have been grounded and trapped until waters rise.

What was puzzling to me was that the Three Gorges Dam was already in place and the resultant lake already starting to form. It would appear then, that the dried out portions of the river must be far upstream, probably above cataracts or falls.

In any event, a documentary by Canadian director Yung Chang Up the Yangtze is included in the Sundance Festival's presentations and should prove of great interest - not alone because much of the grandeur of the Yangtze will be lost under water.

A price too high to pay? I don't think so. Not even with the displacement of thousands of people, given the clean power that this biggest dam in the world will be capable of delivering:

A price too high?


From: delta | Registered: Sep 2007  |  IP: Logged
remind
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Babbler # 6289

posted 19 January 2008 09:46 PM      Profile for remind     Send New Private Message      Edit/Delete Post  Reply With Quote 
Yep!
From: "watching the tide roll away" | Registered: Jun 2004  |  IP: Logged
Wilf Day
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posted 19 January 2008 10:12 PM      Profile for Wilf Day     Send New Private Message      Edit/Delete Post  Reply With Quote 
quote:
Originally posted by bliter:
the dried out portions of the river must be far upstream, probably above cataracts or falls.


No, below the dam. But not caused by it.

[ 19 January 2008: Message edited by: Wilf Day ]


From: Port Hope, Ontario | Registered: Oct 2002  |  IP: Logged
bliter
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Babbler # 14536

posted 20 January 2008 07:31 AM      Profile for bliter   Author's Homepage        Edit/Delete Post  Reply With Quote 
Yes, silly of me because, of course, the main shipping would have been below the dam - though it's noted that a lock/s already permit shipping upriver past the dam.

While the filling of the reservoir doubtless contributed to the current problems, they should only be temporary, and among the positives of the project will be the reduced loss of life and reduced property damage at completion, with the added flood controls.

To give an idea of the scope of the project:

quote:
Type: Concrete Gravity Dam
Cost: Official cost $25bn - actual cost believed to be much higher
Work began: 1993
Due for completion: 2009
Power generation: 26 turbines on left and right sides of dam. Six underground turbines planned for 2010
Power capacity: 18,000 megawatts
Reservoir: 660km long, submerging 632 sq km of land. When fully flooded, water will be 175m above sea level
Navigation: Two-way lock system became operational in 2004. One-step ship elevator due to open in 2009.

[ 20 January 2008: Message edited by: bliter ]


From: delta | Registered: Sep 2007  |  IP: Logged

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