Skokomish River: Difference between revisions

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==Notes==
==Notes==
*Prior to recent reliscencing negotiations the vast majority of the North Folk flow was diverted to the Cushman penstock and powerhouse, resulting reduction of river flood flow.
*Sediment input following reckless forest practices have resulted in sediment accumulation in [[Upper Skokomish Floodplain]] such that fish passage is blocked by gravel bars and sub-surface flow in summer.
*The combination of modified flow regime and sediment loading, and an aggrading geomorphology are such that releases of North Fork Flows result in flooding of the valley and the arterial Skokomish Valley Road.
*[[File:WDFW 2010 skokomish chinook recovery plan.pdf]]
*[[File:WDFW 2010 skokomish chinook recovery plan.pdf]]
*[http://www.ecy.wa.gov/Programs/wq/tmdl/skokomish/index.html Ecology Fecal Coliform TMDL page]
*[http://www.ecy.wa.gov/Programs/wq/tmdl/skokomish/index.html Ecology Fecal Coliform TMDL page]

Revision as of 21:07, 16 July 2015


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The Skokomish River system includes the South Fork Skokomish River where extensive forest harvest and resulted in large sediment inputs, which flows into the Upper Skokomish Floodplain where it is joined by the Vance Creek Watershed. The North Fork Skokomish River has been controlled and diverted by the Cushman Dam since the 1920s flows into the floodplain over an alluvial fan. After the north fork confluence, the channel becomes more stable in the Lower Skokomish Floodplain, where it is joined by Purdy Creek before flowing into the Skokomish Delta and Anna's Bay at the crook of Hood Canal. The watershed lies within Mason County with tracts of wetlands around the delta within the Skokomish Indian Nation reservation.

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