Re: NANFA-- River Use Issues in GA/AL/FL

Jay DeLong (
Sat, 16 Dec 2000 09:44:15 -0800


> > I asked one time if anyone had ever invented a
> > practical fish ladder for a
> > dam? I have often thought of maybe a small stream
> > that exits from the dam
> > impoundment somewhere up stream of the dam and is
> > allowed to roam around over
> > a couple of miles before finding it's way back to
> > the tail waters of the dam.
> > Does this sound practical?

>Very, although I think the 'couple miles' may well
>become a hundred. Particularly in the west. As long as
>it works is what counts.

Very what-- practical? It's about the most impractical thing I can
imagine. How many dozens of private landowners' properties are you going
to comandeer to lay these hundreds of miles of artificial streams? It's
much more practical to remove the dams.

Dams in the Columbia River and elsewhere already use a similar but shorter
structure to get salmon fry around them. They're like metal sluices like
you may have seen on tv in a mining operation. The young fish somehow find
the side channel, are whisked around the dam high over the ground, and are
dumped downstream. These aren't all that good for the small fish but it's
better than being turned into fish puree by the dam's turbines.

Jay DeLong
Olympia, WA

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