Does the building a dam on a river affect the vibrance of that river!

Dams on rivers - Daming a river increase the ecnomic use of the river
By Nic
@academic2 (7009)
Uganda
April 21, 2007 10:49am CST
I have seen cases where vibrant rivers begin to slow down when a dam is build accross it. Such rivers are even threatened with silting and drying out altogether when there are no tributaries feeding into them. Do you think building a dam on the river threatens the river itself?
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