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Environmental Flows Workshop for the Middle Fork and Coast Fork of the Willamette River, Oregon

Gregory, Stan; Ashkenas, Linda; Nygaard, Chris
12/13/2010
link DOWNLOAD FILE: DOWNLOAD FILE (1,455K)

The Nature Conservancy (TNC) and the U. S. Army Corps of Engineers (USACE) have collaborated on the Sustainable Rivers Project (SRP). This effort identifies opportunities to manage Corps Dam operations to achieve more ecologically sustainable flows, while maintaining or enhancing dam benefits. The Willamette River Flow Project is one of nine ongoing SRP projects nationally and is being conducted in conjunction with the USACE Willamette Floodplain Restoration Feasibility Study. Both projects have focused on the Coast and Middle Forks of the Willamette River (Fig 1). These two subbasins contain 6 of the 13 dams in the Willamette River system. Their operation affects downstream reaches and has implications for the operation of the other dams in the river network. The goal is to use the Coast and Middle Forks and the mainstem Willamette immediately downstream of these tributaries as a pilot study that can be replicated in the rest of the Willamette River system.

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