Topics Overview

Skokomish Watershed

Location of the Skokomish Watershed in Washington State.  Map courtesy of the EPA.The Skokomish-Dosewallips watershed borders Hood Canal, on the eastern side of the Olympic Peninsula. The watershed covers 670 square miles from the Olympic Mountains to the Skokomish River Valley, and has only about 8,000 permanent residents. The largest rivers in the watershed are the Skokomish, Dosewallips, Hamma Hamma, and Duckabush. The Skokomish is the largest source of freshwater for Hood Canal, but smaller streams also carry precipitation and glacial meltwater directly into the fjord. Annual precipitation in the watershed is highest in the Olympic Mountains, sometimes reaching 250 inches a year, and tapers to 60 inches annually along Hood Canal. Four species of salmon and trout listed as threatened under the Endangered Species Act live in the Skokomish, and community watershed restoration efforts are ongoing. The Skokomish Watershed Action Team (SWAT) is a collaborative effort towards basin restoration involving over two dozen organizations.

EPA watershed profile:

Related WRIA: 16

All Puget Sound WRIAs


The Wilderness Society

Skokomish-Dosewallips Watershed Management Plan


Displaying 1 - 2 of 2

Related articles

The Skokomish Tribe began as the Twana Indians, made up of nine communities living in and around the Hood Canal drainage basin.

Skokomish Area of Concern:

The tribe focuses restoration efforts in the Skokomish-Dosewallips basin (WRIA 16). Land use in this basin is concentrated along Hood Canal, since much of the remaining land falls under federal jurisdiction. Expanding development is a concern, especially as water demand increases. Aggressive timber harvesting in the last 15 years has left the watershed in need of serious restoration work. Both the Skokomish River and Hood Canal have elevated fecal coliform levels, which are partly attributable to agricultural practices in the surrounding watershed.

Natural Resource Management:

Skokomish Watershed
The Snoqualmie River. Photo copyright King County.

The diversity of streams in the county is a reflection of the diversity of its geography. From the small rivulets that begin high in the Cascade Mountains, to the brooks that flow gently across the lowlands, to the five major rivers of the county, there are over 4,800 kilometers (3,000 miles) of perennial streamcourses in King County.

Freshwater habitat , King County, Duwamish Watershed, Lake Washington Watershed, Puyallup Watershed, Skokomish Watershed, Snoqualmie Watershed