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Old Jun 7th, 2013, 08:41 PM   #11
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I'm sure this will cause no harm whatsoever to Lake Nicaragua.
I was wondering the same thing. I assume that it won't just be an open passage from ocean to ocean, but still... Lake Nicaragua drains into the Caribean Sea. Is it even possible to stop cross contamination of biota from the Pacific? Is there a risk that Lake Nicaragua could end up permanently brackish?
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Old Jun 7th, 2013, 08:47 PM   #12
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I cite zebra mussels as a good example of damage caused by a canal system.
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Old Jun 8th, 2013, 06:30 AM   #13
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Old Jun 8th, 2013, 10:32 AM   #14
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Originally Posted by heavyall View Post
I was wondering the same thing. I assume that it won't just be an open passage from ocean to ocean, but still... Lake Nicaragua drains into the Caribean Sea. Is it even possible to stop cross contamination of biota from the Pacific? Is there a risk that Lake Nicaragua could end up permanently brackish?
From 'Wiki'
"Lake Nicaragua with an elevation of 32.7 metres (107 ft) above sea level,"
your concerns are unlikely.
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Old Jun 8th, 2013, 11:12 AM   #15
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From 'Wiki'
"Lake Nicaragua with an elevation of 32.7 metres (107 ft) above sea level,"
your concerns are unlikely.
Zebra mussels didn't ride the current up the St. Lawrence river, through the locks.

Also, with lots of traffic, what will it do the lake level? That's where the water will come from to lift those behemoths.
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Old Jun 8th, 2013, 11:38 AM   #16
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Also, with lots of traffic, what will it do the lake level? That's where the water will come from to lift those behemoths.
The panama canal has been operating for years with a much smaller lake as a source.
Reading up on the lock system on wiki, and having been through the panama several times in my early Navy days, I recall as we were being raised, the ship in the lock next to us was going down.
Which leads me to think the water from one set of locks was being pumped across to the other. Recycling of a sorts.
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Old Jun 8th, 2013, 01:00 PM   #17
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The lake was created for the canal.

Note it also flooded some woodland, and areas of the river upstream.

Wonder if anyone was displaced by that damn too?
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Old Jun 8th, 2013, 02:49 PM   #18
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From 'Wiki'
"Lake Nicaragua with an elevation of 32.7 metres (107 ft) above sea level,"
your concerns are unlikely.
I'm not making accusations, just wondering how that works. If the boat is in the locks, sea water is going to come with it right? One boat at a time, isn't the salinity of the lake going to rise? How do you stop organisms from hitching a ride?
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Old Jun 8th, 2013, 04:08 PM   #19
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I'm not making accusations, just wondering how that works. If the boat is in the locks, sea water is going to come with it right? One boat at a time, isn't the salinity of the lake going to rise? How do you stop organisms from hitching a ride?
I can't speak to the organisms because they are hardy buggers, but the water for the lift comes from upstream.

When the next lock empties for ship going the other way, the lock being flushed washes downstream and into the sea.

I don't believe there is any pumping involved, just gravity, and water seeking it's own level.
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