Elwha dam-removal project held back as silt estimate too low

It turns out the world’s largest dam- removal project in history is even bigger than originally thought, as scientists discover an early mapping error of Lake Mills and learn the dams impounded even more sediment than first projected.

. Lynda Mapes reports. http://seattletimes.com/html/localnews/2020045074_elwha03m.html

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