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Snoqualmie - Skykomish River Watershed, King County, Washington

Snoqualmie-Skykomish Watershed

The Snoqualmie - Skykomish Watershed covers northeast King County and drains to the Snohomish River and out into Puget Sound. The watershed includes the Tolt River, Raging River, Miller River, Tokul Creek, Griffin Creek, Harris Creek, Patterson Creek, and other tributaries. View photos of the river and its tributaries using the Snoqualmie riparian photo viewer.

Snoqualmie Basin overview

Snoqualmie Watershed facts

Community service center
Information about the King County satellite offices including ones located near the Snoqualmie Valley in Sammamish and Cottage Lake. near Redmond, at the address, 19145 NE Woodinville-Duvall Road, Woodinville, WA 98072. Phone number, 206-296-2733.

Basin steward program
A summary of the Water and Land Resources Basin Steward Program. For more information about the Snoqualmie River Watershed or to find out how you can get involved, call or email Mary Maier, Basin Steward, at 206-296-1914.

Snoqualmie Watershed riparian photos
Use a map to to access photographs of individual stream reaches on the Snoqualmie River and its tributaries.

Flooding and hydrology

Flooded road and car, January 2009 flooding of the Tolt River, WAKing County Flood Warning System

Real-time gage readings, flood phase descriptions, maps and reports for the Snoqualmie River, Skykomish River, Tolt River, and Raging River in the Snoqualmie River Watershed.

Video of the Election Day Flood, November, 2006:

Hydrologic gage data map
Look up detailed gaging station data for creeks and rivers in the region.

Snoqualmie flood-farm task force report
Provides finding and recommended mechanisms to help Snoqualmie Valley farms that get periodically flooded, in ways that maintain good floodplain management and continue salmon recovery in the lower Snoqualmie River.

Flood related video interview by Kim Hill with Larry Phillips, Kathy Lambert, Mark Isaacson
Watch Video:
Preventing flood disasters
King County is at work this summer repairing levees
RealPlayer needed to watch this video.
Video length 22 minutes, 22 seconds.

Surface water management and groundwater

Introduction to watersheds

Snohomish River watershed map
Drainage map displaying streams, lakes, drainage divides, cities, and major roads in the area draining to the Snohomish River, including Snoqualmie-Skykomish River in King County. The map is in Acrobat format. File size is 2.48 Mb.

Patterson Creek rapid rural reconnaissance report
This document will help guide the surface water-related work King County performs in Patterson Creek basin. Look up priority drainage, habitat, and water quality projects, acquisitions, studies, and programs to be funded over time by surface water management fees dedicated to King County's capital budget.

East King County Groundwater Management Area
Learn about plans to protect the aquifer in the east King County area including the Snoqualmie-Skykomish watershed localities of Duvall, Carnation, Fall City, Snoqualmie, North Bend, and areas in between.

Salmon & trout recovery

Go to Water Resource Inventory Area (WRIA) 7 - Snoqualmie-Skykomish WatershedSalmon conservation and recovery in the Snoqualmie/ Skykomish watershed
A "one-stop" reference for local residents, elected officials, and city and agency staff members who are interested in salmon conservation in the Snoqualmie-Skykomish Watershed.

Snohomish River Basin salmon conservation and recovery (external link)
Site provides comprehensive salmon conservation info and plans for the Snohomish Watershed (WRIA) from Snohomish County Surface Water Management.

Lower Tolt River floodplain restoration project
Overview of a habitat restoration project designed to return the lower Tolt River to its historic meandering state and rich habitat diversity while continuing to provide flood protection and park uses.

Snoqualmie Watershed aquatic habitat conditions report, 1999-2001
This report summarizes and interprets data collected in the field from 1999-2001 about habitat conditions for multiple species of salmonids and other aquatic biota in aquatic ecosystems of the Snoqualmie Watershed, including the mainstem Snoqualmie River and several of its tributaries.

Snoqualmie Watershed geology report
An overview of the geology and geomorphology of the Snoqualmie River Watershed.

Snoqualmie Watershed stream habitat reconnaissance report
Assessment of habitat conditions, presence and relative distribution of salmonid species and other aquatic biota in 14 rivers and streams in the lower Snoqualmie Watershed.

Wastewater treatment

Carnation wastewater treatment plant
Overview of the valley's wastewater treatment plant describes how it highly treats wastewater and reclaims water to distcharge through the naturally filtering wetland at Chinook Bend Natural Area.

Recreation and appreciation

Kayaker Boating on the Snoqualmie, Tolt, Raging, Skykomish, and Miller Rivers: review our flooding & habitat project locations, and hyperlink to the boaters page for safety tips, boating signals, and other useful info.

Snoqualmie Valley trail
The Snoqualmie Valley trail offers the opportunity to get out and explore one of the most beautiful agricultural valleys in the region. The trail meanders past working farms as well as preserved open space areas, and connects to the cross-state John Wayne pioneer trail in Iron Horse State Park. Points of interest include Tolt-MacDonald park, Meadowbrook farm, Three Forks natural area and the Tokul trestle.

Snoqualmie preservation initiative
Learn about King County's work to preserve forestlands, trail corridors, and views in and around the City of Snoqualmie as plans for the City's future growth are finalized.

King County natural areas:

Look up individual properties protected in King County's open space system for their ecological and working resource values. The natural lands site provides addresses, pictures, location maps and rules for public use:

Land Resources

Agriculture in King County, Washington
Info about several programs serving growers in King County and resources promoting local agriculture. The Snoqualmie Valley encompasses one of King County's larger agricultural districts.

Puget Sound Fresh
Look up Snoqualmie Valley u-pick farms, community-supported farms, nurseries and produce markets.

Community supported agriculture farms

Forestry services and information
Info about several King County programs serving foresters and homeowners involved in forestry.

Resource protection and tax incentive programs
Incentive programs to help encourage private landowners to voluntarily conserve and protect land resources, open space and timber.