PGE Hydropower and Fish Photo Tour
Coffer dam breached on Sandy River in Oregon

Coffer dam breached
On Oct. 19, 2007, high water from heavy rainfall swept away the earthen coffer dam built upstream from Marmot Dam to give crews a dry place to work. Within hours of breaching the dam, the Sandy took on the look and contours of a free-flowing river. See photos, video and time-lapse sequences of the dramatic event at MarmotDam.com.

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