20250801 07484800 1.0 TRUE Alicia Wood Metro Data Resource Center 503-813-7561 503-797-1909 600 NE Grand Ave. Portland OR 97232 alicia.wood@oregonmetro.gov 20250721 ArcGIS Metadata 1.0 Metro Data Resource Center 503 797-1742 503 797-1909 600 NE Grand Ave. Portland OR 97232 drc@oregonmetro.gov No cost Shapefile 2 2 http://www.oregonmetro.gov/rlisdiscovery Email drc@oregonmetro.gov or call 503-797-1742 for further instructions. Streams (poly) 1988-01-01 Metro Data Resource Center Rivers, streams, lakes and other water bodies of the Metro region. Date of last data update: 2025-07-21 This is official RLIS data. Contact Person: Alicia Wood alicia.wood@oregonmetro.gov 503-813-7561 RLIS Metadata Viewer: <a href='https://gis.oregonmetro.gov/rlis-metadata/#/details/516' rel='nofollow ugc'>https://gis.oregonmetro.gov/rlis-metadata/#/details/516</a> RLIS Terms of Use: <a href='https://rlisdiscovery.oregonmetro.gov/pages/terms-of-use' rel='nofollow ugc'>https://rlisdiscovery.oregonmetro.gov/pages/terms-of-use</a> For use as a "base" layer on map products. Used when people want to see a complete rendering of streams. http://library.oregonmetro.gov/rlisdiscovery/browse_graphic/stm_fill.png Rivers and streams in the Metro region shown with topography and the Metro boundary for orientation. PNG Portland Multnomah County Washington County Clackamas County Oregon River stream creek lake slough drainage hydrography hydrology RLISRiverstreamcreeklakesloughdrainagehydrographyhydrologyPortlandMultnomah CountyWashington CountyClackamas CountyOregon This database and GIS data are made available under the RLIS Open Database End User License Agreement. See https://rlisdiscovery.oregonmetro.gov/pages/open-database-license. The information in this file was derived from digital databases on Metro's GIS. Care was taken in the creation of this file. Metro cannot accept any responsibility for errors, omissions, or positional accuracy. There are no warranties, expressed or implied. true -123.486073179 -121.65053671 46.08065859 44.885714569 Ground condition 2025-07-21 Includes open drainage ditches. Derived from Metro's Riv_arc and Riv_poly data layers. Detailed streams and waterbodies are only shown for the tri-county area, while major streams and waterbodies are shown for the entire four-county area. Same as Metro's Riv_arc. The Riv_arc layer was intially registered to the US Geological Survey (USGS) 7.5 minute quadrangles, and then adjusted visually at approximately 1:10000 using the 1998 Spencer Gross aerial photography. Where photography was not available or banks and streambeds obscured, the USGS quad topography was used. Some streams, usually major streams, are registered to the tax lot map. Derived from Metros Riv_arc and Riv_poly data layers which are updated river and water body data layers of the Metro region created by using the previous Metro river and water body layer (an enhanced USGS hydrography layer which had been adjusted to taxlots) in conjunction with a raster model of predicted streams or channels draining more than 100 acres of land based upon 1:24000 USGS quad topography. Stream centerlines and banks were adjusted or digitized at approximately 1:10000 using the 1998 Spencer Gross aerial photography. Where photography was not available or banks and streambeds obscured, the USGS quad topography was used. The dataset has not been field checked. 2001-02 Projection information (.prj file), compatible with ArcGIS 8.1, was added to the layer. 2001-07-15 Incorporated Clean Water Services line work in much of the Tualatin River subbasin. 2006-07 Removed a few stream features and cleaned up Sandy River geometry following a request from WCCCA 2021-04-16 Stm_fill.dbf Stream polygon attributes Class Class of water body 1 Major water body 2 Important water body 3 Significant water body 4 Other water body NA Area Area in square feet NA 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