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Science Library

Welcome to the Tualatin River Watershed Council’s Science Library. Within this page you will find our trove of resources and scientific documents related to the Tualatin River. 

Over the years there has been a great deal of research conducted within the Tualatin River watershed. This Science Library contains a collection of important research, assessments, and monitoring that has been conducted in the basin. This library is not comprehensive. Please contact us if there is information you would like to see added to our clearinghouse.

Have something to share?

If you have additional documents specific to the Tualatin Watershed that you think should be included, let us know at trwc@trwc.org.

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Fish & Macroinvertebrate Studies
Restoration Planning & Prioritization
Water Quality
Watershed Analysis

All Resources

Fish & Macroinvertebrate Studies
Scientific
Distribution of Fish and Crayfish and Measurement of Available Habitat in the Tualatin Basin
Published 1995
by Oregon Department of Fish and Wildlife
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Distribution of Fish and Crayfish and Measurement of Available Habitat in the Tualatin Basin
Fish & Macroinvertebrate Studies
Scientific
Distribution of Fish and Crayfish and Measurement of Available Habitat in the Tualatin Basin Inside the Urban Growth Boundary 1999-2001
Published 2002
by Oregon Department of Fish and Wildlife
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Distribution of Fish and Crayfish and Measurement of Available Habitat in the Tualatin Basin Inside the Urban Growth Boundary 1999-2001
Restoration Planning & Prioritization
Assessment
Gales Creek Fish Passage Assessment and Prioritization
Published 2014
by Stephen Cruise and Janet Oatney
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Gales Creek Fish Passage Assessment and Prioritization
Restoration Planning & Prioritization
Planning
Gales Creek Large Woody Debris Inventory Report
Published 2006
by Michele Koehler, M.S. & Nick Haxton, M.S. for Tualatin River Watershed Council
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Gales Creek Large Woody Debris Inventory Report
Restoration Planning & Prioritization
Planning
Gales Creek Sub-Basin Restoration Action Plan
Published 2015
by Cascade Environmental Group for the Tualatin River Watershed Council
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Gales Creek Sub-Basin Restoration Action Plan
Watershed Analysis
Assessment
Gales Creek Watershed Assessment Report
Published 1998
by Nancy Breuner
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Water Quality
Planning
Guidebook for Controlling Harmful Algal Blooms in the Tualatin River Watershed
Published 2023
by Joint Water Commission
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Guidebook for Controlling Harmful Algal Blooms in the Tualatin River Watershed
Water Quality
Scientific
Hydrology Monitoring and Analysis for the Gales/Clear Creek Confluence Project
Published 2019
by Stillwater Sciences for Clean Water Services
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Hydrology Monitoring and Analysis for the Gales/Clear Creek Confluence Project
Restoration Planning & Prioritization
Planning
Lower Gales Creek Enhancement Plan Knotweed and Ivy Mapping and Report
Published 2006
by Jackie Dingfelder & Jason Schmidt for Three Rivers Land Conservancy
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Lower Gales Creek Enhancement Plan Knotweed and Ivy Mapping and Report
Restoration Planning & Prioritization
Planning
Lower Gales Creek Enhancement Planning Geomorphic Assessment Technical Study
Published 2006
by Tualatin River Watershed Council
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Lower Gales Creek Enhancement Planning Geomorphic Assessment Technical Study