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Cotter dam expansion rolls on

By johnboy 25 October 2009 28

It’s Thursday’s news, but it bears repeating.

Peter Garrett has announced his approval of the gargantuan cotter dam expansion project.

“This is a good outcome—it provides water security for the Canberra region and at the same time the stringent conditions I have imposed will ensure that threatened species will be properly protected.” Minister Garrett said.

“The species of particular concern to me in this instance are the Murray cod and the Macquarie perch. ACTEW will fund and implement a fish management plan to ensure any impacts on the Macquarie perch are acceptable.

“Road crossings upstream will be modified to allow access to additional spawning habitat for the Macquarie perch. ACTEW will also create and install artificial habitat suited to the species.

With the cost blowing out from an originally projected ~$100 million to ~300 million does anyone want to guess where the final price will finish up?


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Cotter dam expansion rolls on
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Chop71 10:35 pm 27 Oct 09

icantbelieveitsnotbutter said :

I heard that the head of Actew has put his job on the line for both cost and completion dates? That’s a pretty fair indication that the ‘estimates’ are pretty spot on…

and he will get the boot and a huge payout to go with it and say thanks.

shauno 11:05 pm 26 Oct 09

Enlarging Cotter is a good Idea its overflowing all the time that dam and also it will make a great fishery. You cant bring water from Tantangara as its in another catchment from Corin and also its used as a top up for the Snowy Mountains Scheme and is usually only around 5% full if that.

JC 6:06 pm 26 Oct 09

taco said :

The point would be that Corin is being slowly filled as it’s not being used to fill the Cotter and Bendora dams, as they are overflowing with the recent rains.

Extra capacity at the Cotter will mean the ability to hold the water entering the catchment below Corin.

http://www.actewagl.com.au/water/facts/damCapacity.aspx

Correct. The 3 dams up that way are one complete system. It is healthy and storage volumes are growing. So enlarging the Cotter makes sense.

JC 6:03 pm 26 Oct 09

James-T-Kirk said :

JC said :

Hang on – the festering bucket of mouldy water in my back yard has been full as well – (as long as the dog hasn’t knocked it over again!)

Your point is?????

The post I was replying to said that the Cotter dam wouldn’t fill above 10%. I was pointing out that the water flows in the cotter/Bendora/Corin systems have actually been quite good so I think it will fill. The quality is not an issue.

Rawhide Kid No 2 5:09 pm 26 Oct 09

Rawhide Kid No 2 said :

I’m trying to work out where 27.1 ML (Megalitres) went yesterday being a Sunday and a wet one at that.

Refer: http://tinyurl.com/StorageVolume

Oops. That should read 10.7 ML

Rawhide Kid No 2 5:06 pm 26 Oct 09

I’m trying to work out where 27.1 ML (Megalitres) went yesterday being a Sunday and a wet one at that.

Refer: http://tinyurl.com/StorageVolume

p1 4:06 pm 26 Oct 09

VYBerlinaV8_the_one_they_all_copy said :

FFS – just buy 100GL from Tatangara and let it flow down to Corin, and then pump it across to Googong. I’m getting sick of hearing the neighbours whinging when I hose my driveway.

Is there 100GL in Tantangara?

taco 4:05 pm 26 Oct 09

James-T-Kirk said :

JC said :

Actually if you look at the dam stats you will see the Cotter and Bendora dams have been 100% full for some time. Now considering these are being topped up by Corin which has reminded static I would say that the catchment in this area is healthy, so will rise and fill the enlarged Cotter over time.

Hang on – the festering bucket of mouldy water in my back yard has been full as well – (as long as the dog hasn’t knocked it over again!)

Your point is?????

The point would be that Corin is being slowly filled as it’s not being used to fill the Cotter and Bendora dams, as they are overflowing with the recent rains.

Extra capacity at the Cotter will mean the ability to hold the water entering the catchment below Corin.

http://www.actewagl.com.au/water/facts/damCapacity.aspx

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