On Tue, 18 Sep 2007 21:19:49 CST, k wrote:

why did it build dams in the first place?

On our rivers they were built for generation of
electricity (a lot of which we send to California).

k :-)

The Columbia Basin Project, starting with the Grand Coulee Dam, served 3
purposes, electricity, irrigation and major flood control. Plus put 1000s
of unemployed people to work after the great depression.
http://users.owt.com/chubbard/gcdam/html/history.html
~ jan
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Zone 7a, SE Washington State
Ponds: www.jjspond.us