View Related Episode: Marmot Dam Removed, Fire Tower, Ice Worms

In 1906 the Marmot Dam was built on the Sandy River near Mount Hood. Nearly a century later, PGE decides to remove it. But will the tons of sediment built up behind the dam harm the river downstream once the structure is removed? The National Center For Earth Dynamics at the University of Minnesota and other experts weigh in. See what happens as the Marmot Dam is removed!

First Broadcast: 2008
Producer: Vince Patton
Videographers: Todd Sonflieth, Nick Fisher
Producer:
Editor: Nick Fisher
Audio: William Ward
Field Producer: Milt Ritter
Video courtesy of: Portland General Electric
Photos Courtesy of : US Geological Survey

Appeared in episode: Marmot Dam Removed, Fire Tower, Ice Worms

Video Extra:Time Lapse Video: Coffer Dam Face

PGE Marmot Dam Site

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Field Journal Blog
Bald Eagle Recovery Changes Nature’s Balance
by Vince Patton | 02/04/2010
Bald eagles are back.  They’ve been removed from the endangered species list since June, 2007.  From just 417 nesting pairs in 1963 to  9,789 breeding pairs now, eagles have recovered well in the lower 48 states. More eagles need more food.  Naturally, they eat other animals.  In Oregon, coastal eagles are having a profound impact on [...]
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