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First saddle dam complete at the Cotter

By johnboy - 22 December 2010 4

Cotter Saddle Dam

ACTEW have proudly announced that they’ve finished the first saddle dam as part of the Cotter Dam expansion:

The saddle dam is an embankment dam as opposed to the main dam which will be a concrete dam. It is approximately 22 metres high with a 250 metre wide crest, and is built from clay, rock and sand. It has a clay core and the rocks and clay for the dam were sourced from the Enlarged Cotter Dam construction site

The saddle dam will not only increase the amount of water that can be held in the enlarged dam when it is completed but is also currently serving as an important haul road, enabling the transport of aggregate from the onsite rock crushing plant to the concrete batch plant which will produce the concrete required for the main dam wall.

What’s Your opinion?


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4 Responses to
First saddle dam complete at the Cotter
1
p1 2:09 pm
22 Dec 10
#

Nice.

For those interested, this map shows the location of the saddle dams.

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2
Spectra 2:50 pm
22 Dec 10
#

Curiously, that map shows the water line crossing back and forth over contour lines…in one case there’s a point where the water line on one side of the dam is a good 30m above that one the other side. I’m no hydrologist, but I’m fairly sure that shouldn’t happen…

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3
p1 3:49 pm
22 Dec 10
#

Curiously, that map shows the water line crossing back and forth over contour lines…in one case there’s a point where the water line on one side of the dam is a good 30m above that one the other side. I’m no hydrologist, but I’m fairly sure that shouldn’t happen…

It’s the result of sudden, unpredictable gusts of gravity.

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4
D2 4:26 pm
22 Dec 10
#

@p1 – LOL

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