This data is maintained by and obtained from Metro Data Resource Center. Please go to http://rlisdiscovery.oregonmetro.gov/metadataviewer/display.cfm?meta_layer_id=123 for the complete metadata.

--Additional Information: Category: Boundary Purpose: No purpose information available. Update Frequency: Unknown

© City of Portland, Oregon

This data is maintained by and obtained from Metro GIS. Click the link above to view the Metro GIS metadata for this dataset.

This data is maintained by and obtained from Metro Data Resource Center. Please go to https://gis.oregonmetro.gov/rlis-metadata/#/details/155 for the complete metadata.-- Additional Information: Category: Boundary Purpose: For use as a "base" layer on map products to shade county areas and in analysis to capture areas within each county. Update Frequency: None planned-- Metadata Link: https://www.portlandmaps.com/metadata/index.cfm?&action=DisplayLayer&LayerID=155

Portland Neighborhood association boundaries. BPS maintains GIS data under direction of ONI.-- Additional Information: Category: Boundary Purpose: Mapped by-law boundaries of Portland neighborhoods. Update Frequency: As Needed-- Metadata Link: https://www.portlandmaps.com/metadata/index.cfm?&action=DisplayLayer&LayerID=53509

This feature class identifies the legal speed limit for Portland streets. Not every street segment in the City is included. The dataset includes the speed limits for surface streets where the limit was implemented by an ODOT speed zone order or where a speed limit was authorized by statutes governing speeds in business districts, around schools, along roadways with bicycle or pedestrian improvements, or on non-arterial, residential streets.-- Additional Information: Category: Transportation - Streets Purpose: To identify designated speed limits on Portland streets. Update Frequency: As Needed-- Metadata Link: https://www.portlandmaps.com/metadata/index.cfm?=DisplayLayer=54340

Incorporated city boundaries in and around the Portland metropolitan area, derived from Boundary Commission and Oregon Secretary of State filed annexations. Date of last data update: 2025-04-28 This is official RLIS data. Contact Person: Clint Chiavarini clinton.chiavarini@oregonmetro.gov 503-797-1738 RLIS Metadata Viewer: https://gis.oregonmetro.gov/rlis-metadata/#/details/1436 RLIS Terms of Use: https://rlisdiscovery.oregonmetro.gov/pages/terms-of-use

This data is maintained by and obtained from Metro Data Resource Center. Please go to http://rlisdiscovery.oregonmetro.gov/metadataviewer/display.cfm?meta_layer_id=179 for the complete metadata.

--Additional Information: Category: Boundary Purpose: No purpose information available. Update Frequency: Irregular

© City of Portland, Oregon

This layer is sourced from CGIS Open Data.

Portland IDC Approved City Council Districts With Neighborhood boundariesWWW.PORTLAND.GOV/Auditor Created Date: 10-25-2023 WWW.PORTLAND.GOV/GIS Email: Maps@portlandoregon.gov

This layer is a component of Countywide General-purpose Map.

© City of Portland, Oregon

MCDD district boundaries

© Multnomah County Drainage District 1880 NE Elrod Dr., Portland, OR 97211

The basis for these features is U.S. Geological Survey Scientific Investigation Report 2017-5024 Flood Inundation Mapping Data for Johnson Creek near Sycamore, Oregon. The domain of the HEC-RAS hydraulic model is a 12.9 mile reach of Johnson Creek from just upstream of SE 174th Avenue in Portland, Oregon to its confluence with the Willamette River. Some of the hydraulics used in the model were taken from Federal Emergency Management Agency, 2010, Flood Insurance Study, City of Portland, Oregon, Multnomah, Clackamas and Washington Counties, Volume 1 of 3, November 26, 2010. The Digital Elevation Model (DEM) utilized for the project was developed from LiDAR data flown in 2015 and provided by the Oregon Department of Geology and Mineral Industries. Bridge decks are generally removed from DEMs as standard practice. Therefore, these features may be shown as inundated when they are not. Judgement should be used when estimating the usefulness of a bridge during flood flow. Comparing the bridge to the surrounding ground can be more informative in this respect than simply looking at the bridge itself. Two model plans were used in the creation of the flood layers. The first is a stable model plan using unsteady flow in which the maximum streamflow is held in place for a long period of time (a number of days) in order to replicate a steady model using an unsteady plan. The stable model plan produced the areas of uncertainty contained in the sycor_breach.shp shapefile. The second is an unstable model plan that uses unsteady flow in which the full hydrograph (rising and falling limb) is represented based on the hydrograph shape of the December 2015 peak annual flood. The unstable model plan produced the flood extent polygons contained in the sycor.shp shapefile and the depth rasters and represents the best estimate of flood inundation for the given streamflow at U.S. Geological Survey streamgage 14211500.

Business District boundaries in Portland, OR.

© City of Portland, Oregon

This EnviroAtlas dataset presents environmental benefits of the urban forest in 1176 block groups in Portland, Oregon. Carbon attributes, temperature reduction, pollution removal and value, and runoff effects are calculated for each block group using i-Tree models (www.itreetools.org), local weather data, pollution data, EPA provided city boundary and land cover data, and U.S. Census derived block group boundary data. This dataset was produced by the USDA Forest Service with support from The Davey Tree Expert Company to support research and online mapping activities related to EnviroAtlas. EnviroAtlas (https://www.epa.gov/enviroatlas) allows the user to interact with a web-based, easy-to-use, mapping application to view and analyze multiple ecosystem services for the contiguous United States. The dataset is available as downloadable data (https://edg.epa.gov/data/Public/ORD/EnviroAtlas) or as an EnviroAtlas map service. Additional descriptive information about each attribute in this dataset can be found in its associated EnviroAtlas Fact Sheet (https://www.epa.gov/enviroatlas/enviroatlas-fact-sheets).

Area in which urban services are provided by the City of Portland. This includes some parts of Washington, Clackamas, and unincorporated Multnomah County.-- Additional Information: Category: Boundary Purpose: For mapping and analysis of areas where urban services are provided by the City of Portland. Update Frequency: Quarterly-- Metadata Link: https://www.portlandmaps.com/metadata/index.cfm?&action=DisplayLayer&LayerID=52201

© City of Portland, Oregon

© City of Portland, Oregon

Taxlot or parcel boundaries associated with Portland Parks & Recreation management. Attribute values are joined from PP&R's Property Management database.

--Additional Information: Category: Parks Purpose: Represent taxlot or parcel boundaries of fee simple lands which PP&R has purchased, manages, or otherwise been assigned some type of responsibility. Update Frequency: As Needed

© City of Portland, Oregon

This layer is sourced from CGIS Open Data.

Neighborhoods regions. Overlapping areas assigned to each neighborhood individually creating overlaps in the data.-- Additional Information: Category: Boundary Purpose: Identifies full area of each neighborhood individually with ID number to assign contact information. Update Frequency: As Needed-- Metadata Link https://www.portlandmaps.com/metadata/index.cfm?&action=DisplayLayer&LayerID=54371

A comprehensive dark gray basemap with labels for the Portland metropolitan region with annotation. Includes the following layers: city boundaries, county boundaries, major arterials & streets, outdoor recreation and conservation areas (ORCA), rivers & streams, taxlots, building footprints, and airports. Also includes county, city, highway, major arterial & street, ORCA and river labels. Some data layers are scale dependent and only visible at larger scales. Date of last data update: 2025-02-11 This is official RLIS data. Contact Person: Jihoon Son jihoon.son@oregonmetro.gov 503-797-1589 RLIS Metadata Viewer: https://gis.oregonmetro.gov/rlis-metadata/#/details/3750 RLIS Terms of Use: https://rlisdiscovery.oregonmetro.gov/pages/terms-of-use

A full comprehensive basemap for the Portland metropolitan region with annotation. Includes the following layers: city boundaries, county boundaries, major arterials & streets, outdoor recreation and conservation areas (ORCA), rivers & streams, hillshade, vegetation/land cover, taxlots, building footprints, and airports. Also includes county, city, highway, major arterial & street, ORCA, and river labels. Some data layers are scale dependent and only visible at larger scales. This is a combination of the base & baseActive basemaps. Date of last data update: 2025-05-08 This is official RLIS data. Contact Person: Christine Rutan christine.rutan@oregonmetro.gov 503-797-1669 RLIS Metadata Viewer: https://gis.oregonmetro.gov/rlis-metadata/#/details/3704 RLIS Terms of Use: https://rlisdiscovery.oregonmetro.gov/pages/terms-of-use