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 Linkhttps://www.portlandmaps.com/metadata/index.cfm?&action=DisplayLayer&LayerID=53509

Dataset

This dataset was created by Casey Cushing

Contents

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

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

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

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.

Civic and Neighborhood Corridors in Zoning Code chapter 120 - Multi-Dwelling Zones and 130 - Commercial Mixed Use Zones.Corridors derived from PBOT TSP Street Design Classifications of Civic Main Street, Neighborhood Main Street, Civic Corridor and Neighborhood Corridor.Central City is not included as it has specific standards.-- Additional Information: Category: Zoning Code Purpose: Map location of civic and neighborhood corridors zoning code map 120-1 and 130-3 Update Frequency: As Needed-- Metadata Link: https://www.portlandmaps.com/metadata/index.cfm?&action=DisplayLayer&LayerID=54763

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.

This community-driven map shows live data regarding incidents in Portland due to the recent protests. Incidents that could be dangerous to people in the area are reported. If you are in an affected area and see something potentially dangerous, you can right click (or long-tap on mobile) on the map to create a marker.

This EnviroAtlas dataset shows the boundary of the Portland, OR Atlas Area. It represents the outside edge of all the block groups included in the EnviroAtlas Area. This dataset was produced by the US EPA to support research and online mapping activities related to EnviroAtlas. EnviroAtlas (http:/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).

This digital data set, compiled from new 10-meter digital elevation model (DEM) data, represents the physiography of the Willamette Valley, Oregon. This new physiographic data is useful because the improved resolution allows for better visualization of flood and fluvial features in the low lying areas of the Willamette Valley. Many scientist are interested in the Willamette Valley because it is subject to a variety of earthquake hazards, and its water and geologic resources are under pressure from rapid urbanization (see sheets for a brief description). Further, this Open-File report details the techniques used to create these maps (See readme.pdf). It is the author's purpose to publish these techniques and data so others may use this report to generate their own gray scale and/or color shaded-relief maps. All information about the data and methods used to create this report are in the readme.pdf file and this document.

This digital dataset was compiled from newly released U.S. Geological Survey 10-meter digital elevation model (DEM) data, along with stream and transportation coverages previously published on the internet. This report consists of a digital representation of the physiography of the Willamette Valley. Contained in this dataset is: 1) 10-meter DEM data for the entire Willamette Valley; 2) the ARC/INFO grids used to create the color shaded-relief and gray scale shaded-relief images; 3) the necessary data ARC/INFO data to used to plot these data; and 4) several reports detailing the data formats (this docuement) and producers used to create these datasets. The scale of the original 10-meter DEM data should not be violated. Any use of these original data smaller than the intended scale (1:24,000) will not yield improved accuracy.

The databases in this report were compiled in ARC/INFO, a commercial Geographic Information System (Environmental Systems Research Institute, Redlands, California, with version 3.0 of the menu interface ALACARTE (Fitzgibbon and Wentworth, 1991, Fitzgibbon, 1991, Wentworth and Fitzgibbon, 1991). The files are in either GRID (ARC/INFO raster data) format or COVERAGE (ARC/ INFO vector data) format. Coverages are stored in uncompressed ARC export format (ARC/INFO version 8.0.2). ARC/INFO export files (files with the .e00 extension) can be converted into ARC/ INFO coverages in ARC/INFO (see below) and can be read by some other Geographic Information Systems, such as MapInfo via ArcLink and ESRI's ArcView (version 1.0 for Windows 3.1 to 3.11 is available for free from ESRI's web site: http://www.esri.com). The digital compilation was done in version 8.0.2 of ARC/INFO with version 3.0 of the menu interface ALACARTE (Fitzgibbon and Wentworth, 1991, Fitzgibbon, 1991, Wentworth and Fitzgibbon, 1991). Custom AMLs were written to compile the 10-meter DEM data from 7.5-minute quadrangles into large composite datasets. The data was compiled as ARC/INFO grids and then converted to decimeter integer grids. This procedure greatly reduces the file sizes without downgrading the data quality. Stream coverages were merged with the grids used to create the color shaded-relief grid composite. Further details on the techniques used to generate these maps are available in the readme file of this report.

The amount of floor area in relation to the amount offsite area, expressed in square feet. For example, a floor area ratio of 2 to 1means two square feet of floor area for every one square foot of site area. FAR is different based on zoning, and works with maximum height to control the overall bulk of buildings. See Zoning Code chapter 500 for details. https://www.portlandoregon.gov/bps/34563-- Additional Information: Category: Zoning Code Purpose: To regulate the amount of use on a site. Update Frequency: As Needed-- Metadata Link: https://www.portlandmaps.com/metadata/index.cfm?&action=DisplayLayer&LayerID=54382

This data is not recommended for downloading. Use the "Affordable Housing - Download" item to download the feature class and related table in a zipped file geodatabase. An ongoing inventory of affordable housing for the Portland metropolitan area. Intended to assist in prioritizing investment and guiding regional policymaking. Date of last data update: 2020-12-31 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/3432 RLIS Terms of Use: https://rlisdiscovery.oregonmetro.gov/pages/terms-of-use

This web scene in 3D shows the number of trees in the city of Portland, Oregon. The map's purposes is to aid in the city's urban tree management. It depicts where the trees are located and the real-world heights in an urban setting.

The gravity station data (1,522 records) were compiled by the Portland State University. This data base was received in August 1990. Principal gravity parameters include Free-air Anomalies and Complete Bouguer Anomalies (terrain correction applied). The observed gravity values are referenced to the International Gravity Standardization Net 1971 (IGSN 71). The gravity anomaly computation uses the Geodetic Reference System 1967 (GRS 67) theoretical gravity formula. The data are randomly distributed within the boundaries of the greater Portland area.

8 1/2 x 11 PDF of Oregon Congressional and legislative districts adopted in SB 882 in 2021.PDF Maps:PDF Maps: Oregon Redistricting (arcgis.com)Oregon Redistricting Website:https://www.oregonlegislature.gov/redistricting/

Portland's business districts and neighorhoods inherently support each other in many ways. Since 1986 Venture Portland has invested in the smart, strategic growth of Portland’s unique neighborhood business districts. These dynamic districts, which together make up a majority of the city’s businesses and nearly half of its jobs, play a vital role in Portland’s economic prosperity and collectively represent local, regional, national and international demand for goods and services.-- Additional Information: Category: Boundary Purpose: For mapping and analysis of business districts in Portland. Update Frequency: As Needed-- Metadata Link: https://www.portlandmaps.com/metadata/index.cfm?&action=DisplayLayer&LayerID=53652

This dataset contains polygons representing deposits of hyaloclastic debris that were generated between about 3.5 and 3.0 million years ago when a series of basaltic lava flows entered the canyon of the ancestral Columbia River. The lava flows were erupted from volcanoes in the area of the Hood River graben of McClaughry and others (2012), generally have low-potassium tholeiitic basalt composition, and were part of a widespread pulse of mafic volcanism in the northern Oregon Cascade Range that occurred between about 4.4 and 2.1 million years ago (Conrey and others, 1996). Lava flows that entered the ancestral Columbia River were rapidly chilled and fragmented during interaction with water (Trimble, 1963, Swanson, 1986; McClaughry and others, 2012). The voluminous hyaloclastic debris was swept downstream and accumulated as thick deposits in the eastern Portland Basin (Swanson, 1986). The canyon that the ancestral Columbia River occupied, known as the Bridal Veil channel (Tolan, 1982; Tolan and Beeson, 1984), was eventually filled by the hyaloclastite and related lava flows and the river was diverted to the north, where it has carved its present canyon. Argon–argon (40Ar/39Ar) age determinations for lava flows interbedded with and overlying the hyaloclastite (McClaughry and others, 2012; Fleck and others, 2014) suggest the hyaloclastite was deposited between about 3.5 and 3.0 million years ago. The hyaloclastic deposits (map unit Ttfh) are equivalent to the Troutdale Formation upper member of Tolan and Beeson (1984) and include the Troutdale Formation hyaloclastic sandstone member of Evarts (2006), Evarts and O'Connor (2008), Evarts, O'Connor, and Tolan (2013), and Wells and others (2020). Although the hyaloclastic deposits are generally sandstones in the western Columbia Gorge and Portland Basin, they contain pillow lavas and basaltic breccia in the area between Hood River, Oregon and Bonneville Dam. Most clasts in the hyaloclastic deposits are olivine-phyric basalt that is rich in basaltic glass (sideromelane) that is commonly altered to yellow-brown colored palagonite. At some localities in the western Columbia Gorge, the hyaloclastic deposits include beds of micaceous quartzose sandstone. This dataset also includes polygons representing the partial extents of lava flows (map unit Tlkt) that are either interbedded with or overlie the hyaloclastic deposits. The lava flows generally have tholeiitic basalt composition with low levels of potassium (less than 0.5 weight percent K2O), commonly contain olivine phenocrysts, and often have a diktytaxitic groundmass texture consisting of numerous small angular voids. The lava flows are equivalent to the late Pliocene lavas of the late High Cascades grouping of McClaughry and others (2012). It should be noted that there are numerous lava flows of similar age and composition in the region but this dataset mostly contains those that can be used to constrain the history of the hyaloclastic deposits in the Bridal Veil channel. This data release is a compilation that includes incomplete geologic mapping and it is anticipated that extents of these deposits will be expanded in future geologic maps. The source maps upon which most of this dataset was derived from were intended for use at 1:24,000 scale. References Cited: Conrey, R.M., Sherrod, D.R., Uto, K., and Uchiumi, S., 1996, Potassium-argon ages from Mount Hood area of Cascade Range, northern Oregon: Isochron/West, no. 63, p. 10-20. Evarts, R.C., 2006, Geologic map of the Lacamas Creek quadrangle, Clark County, Washington, U.S. Geological Survey Scientific Investigations Map 2924, scale 1:24,000, https://doi.org/10.3133/sim2924. Evarts, R.C., and O'Connor, J.E., 2008, Geologic map of the Camas Quadrangle, Clark County, Washington, and Multnomah County, Oregon, U.S. Geological Survey Scientific Investigations Map 3017, scale 1:24,000, https://doi.org/10.3133/sim3017. Evarts, R.C., O'Connor, J.E., and Tolan, T.L., 2013, Geologic map of the Washougal quadrangle, Clark County, Washington, and Multnomah County, Oregon, U. S. Geological Survey Scientific Investigations Map 3257, scale 1:24,000, https://doi.org/10.3133/sim3257. Fleck, R.J., Hagstrum, J.T., Calvert, A.T., Evarts, R.C., and Conrey, R.M., 2014, 40Ar/39Ar geochronology, paleomagnetism, and evolution of the Boring volcanic field, Oregon and Washington, USA: Geosphere, v. 10, no. 6, p. 1283-1314, https://doi.org/10.1130/ges00985.1. McClaughry, J.D., Wiley, T.J., Conrey, R.M., Jones, C.B., and Lite, K.E., 2012, Digital geologic map of the Hood River Valley, Hood River and Wasco Counties, Oregon: Open-File Report O-12-03, 130 p., https://www.oregongeology.org/pubs/ofr/p-O-12-03.htm. Swanson, R.D., 1986, A stratigraphic-geochemical study of the Troutdale Formation and Sandy River Mudstone in the Portland basin and lower Columbia River Gorge, Portland State University, M.S. thesis, 115 p, https://doi.org/10.15760/etd.5604. Tolan, T.L., 1982, The stratigraphic relationships of the Columbia River Basalt Group in the lower Columbia River Gorge of Oregon and Washington, Portland State University, M.S. thesis, 169 p, https://doi.org/10.15760/etd.3232. Tolan, T.L., and Beeson, M.H., 1984, Intracanyon flows of the Columbia River Basalt Group in the lower Columbia River Gorge and their relationship to the Troutdale Formation: GSA Bulletin, v. 95, no. 4, p. 463-477, https://doi.org/10.1130/0016-7606(1984)95%3C463:IFOTCR%3E2.0.CO;2. Trimble, D.E., 1963, Geology of Portland, Oregon, and adjacent areas: U. S. Geological Survey Bulletin 1119, https://doi.org/10.3133/b1119. Wells, R.E., Haugerud, R.A., Niem, A.R., Niem, W.A., Ma, L., Evarts, R.C., O'Connor, J.E., Madin, I.P., Sherrod, D.R., Beeson, M.H., Tolan, T.L., Wheeler, K.L., Hanson, W.B., and Sawlan, M.G., 2020, Geologic map of the greater Portland metropolitan area and surrounding region, Oregon and Washington: U.S. Geological Survey Scientific Investigations Map 3443, scale 1:63,360, https://doi.org/10.3133/sim3443.

This layer is an overlay measuring the level of "completeness" of areas within the City of Portland. Completeness is defined by a neighborhood's proximity to various amenities, such as grocery stores, parks and recreation facilities, commercial services, elementary schools, pedestrian and bicycle infrastructure, and transit. The overlay was generated by calculating the areas where at least five of the seven total "completeness" indicator overlays are present.-- Additional Information: Category: Planning Purpose: Update Frequency: Unknown-- Metadata Link: https://www.portlandmaps.com/metadata/index.cfm?&action=DisplayLayer&LayerID=54195