| Information | Data Source | Additional Maps | What's New | Contact |
| Select maps by choosing a THEME from the list below | ||
| Flood/Shoreline Slope Stability | Land Cover/Land Use | Latitude/Longitude |
| Major Public Lands (MPL) | Population Density | Salmonoid Stock Inventory (SaSI) |
| 303(d) Water Bodies | Topography | Township/Range/Section (TRS) |
View all THEMES for one WRIA by choosing an area on the map
Water Resource Inventory Areas (WRIA) were formalized under Washington Administrative Code (WAC) 173-500-040 and authorized under the Water Resources Act of 1971, Revised Code of Washington (RCW) 90.54. Ecology was given responsibility for the development and management of these administrative and planning boundaries. These boundaries represent the administrative under pinning of this agency’s business activities. The original WRIA boundary agreements and judgments were reached jointly by Washington's natural resource agencies Ecology, Department of Natural Resources, and Washington Department of Fish and Wildlife in 1970 and were updated in 1998 and 2000. Additional WRIA information and links, and WRIA Areas.
To view the WRIA maps in PDF format, your computer needs to have Adobe Acrobat installed. The Adobe Acrobat Reader is free and available by clicking on the icon below:
If you are unfamiliar with using Adobe Acrobat, we have some tips on using Adobe Acrobat Reader with our maps.
All maps created using ESRI's ArcInfo 9.x, ArcPlot software.
Data for the WRIA maps comes from different sources. To obtain the digital data, please click on the link to the organization website.
| Layer | Organization | Scale | Year |
|---|---|---|---|
| Water Resource Inventory Areas (WRIA) | Washington State Department of Ecology | 1:24,000 | 2000 |
| Incorporated Cities | Washington State Department of Transportation | 1:24,000 | 2002 |
| Counties | Washington State Department of Ecology | 1:24,000 | 1992 |
| Highway and Roads | Washington State Department of Transportation | 1:24,000 | 2002 |
| Rivers and Water Bodies | Washington State Department of Ecology | 1:100,000 | 2000 |
| Major Public Lands | Washington State Department of Natural Resources | varies | 2005 |
| Public/Ownership/County/Administrative (POCA) | Washington State Department of Natural Resources | 1:24,000 | 2000 |
| 303(d) Water Courses and Water Bodies | Washington State Department of Ecology | 1:100,000 | 1998 |
| National Land Cover Data | United States Geological Survey | 1:100,000 | 1992 |
| StreamNet | StreamNet | 1:100,000 | 2000 |
| 7½' 10 Meter Digital Elevation Model | University of Washington | 1:24,000 | 1998 |
| FEMA Q3 Flood Maps | Federal Emergency Management Agency and Ecology | 1:24,000 | 1998 |
| Population Density | Washington State Office of Financial Management | 1:100,000 | 2001 |
| Boat launches | Washington State Recreation and Conservation Office | 24.000 | 2005 |
| Campgrounds | Washington State Department of Ecology | 24.000 | 2002 |
| USFS National Inventoried Roadless Areas | USDA Forest Service | varies | 2000 |
Archive Have questions and/or comments about the WRIA maps? Please contact:
Mike Woodall, GIS Analyst/Cartographer
GIS Technical Services
Washington State Department of Ecology
P.O. Box 47600
Olympia, Washington 98504-7600
Phone: (360) 407-6088
Fax: (360) 407-6493
E-Mail (miwo461@ecy.wa.gov):
Page updated Tuesday, March 11, 2008 05:01, mw
