Snoqualmie River Flow Enhancement Project
It is widely recognized that streamflows and aquatic ecosystems have been altered on many streams and rivers as a result of human activity. In some areas in the Pacific Northwest, streamflow alterations have adversely impacted Salmon that are federally protected as threatened or endangered species. Numerous restoration efforts have been initiated, in the Pacific Northwest and throughout the world, in an attempt to restore streams and rivers to their natural conditions.
Although it may be possible to restore stream systems in some locations through changes in land-use and water-use patterns, physical restoration of flows through the use of water storage is an option that warrants investigation. This is commonly accomplished by releasing water from dams and reservoirs to maintain adequate streamflow levels. Building or changing dam operations, however, can be expensive and controversial. The EKCRWA is currently investigating the use of groundwater storage as an alternative to conventional surface water storage to improve streamflows and support sound water resources management.
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