Description: This represents the Regional Urban Growth Boundary, managed by Metro, inside Washington County along with the small city UGBs for Banks, Gaston and North Plains.
Description: The attributes are from the assessor's data system (Orion) and are joined with the tax lot GIS layer maintained by the Department of Assessment & Taxation.
Description: This data set represents the extent, approximate location and type of wetlands and deepwater habitats in the United States and its Territories. These data delineate the areal extent of wetlands and surface waters as defined by Cowardin et al. (1979). The National Wetlands Inventory - Version 2, Surface Waters and Wetlands Inventory was derived by retaining the wetland and deepwater polygons that compose the NWI digital wetlands spatial data layer and reintroducing any linear wetland or surface water features that were orphaned from the original NWI hard copy maps by converting them to narrow polygonal features. Additionally, the data are supplemented with hydrography data, buffered to become polygonal features, as a secondary source for any single-line stream features not mapped by the NWI and to complete segmented connections. Wetland mapping conducted in WA, OR, CA, NV and ID after 2012 and most other projects mapped after 2015 were mapped to include all surface water features and are not derived data. The linear hydrography dataset used to derive Version 2 was the U.S. Geological Survey's National Hydrography Dataset (NHD). Specific information on the NHD version used to derive Version 2 and where Version 2 was mapped can be found in the 'comments' field of the Wetlands_Project_Metadata feature class. Certain wetland habitats are excluded from the National mapping program because of the limitations of aerial imagery as the primary data source used to detect wetlands. These habitats include seagrasses or submerged aquatic vegetation that are found in the intertidal and subtidal zones of estuaries and near shore coastal waters. Some deepwater reef communities (coral or tuberficid worm reefs) have also been excluded from the inventory. These habitats, because of their depth, go undetected by aerial imagery. By policy, the Service also excludes certain types of "farmed wetlands" as may be defined by the Food Security Act or that do not coincide with the Cowardin et al. definition. Contact the Service's Regional Wetland Coordinator for additional information on what types of farmed wetlands are included on wetland maps. This dataset should be used in conjunction with the Wetlands_Project_Metadata layer, which contains project specific wetlands mapping procedures and information on dates, scales and emulsion of imagery used to map the wetlands within specific project boundaries.
Description: This data set represents the extent, approximate location and type of wetlands and deepwater habitats in the United States and its Territories. These data delineate the areal extent of wetlands and surface waters as defined by Cowardin et al. (1979). The National Wetlands Inventory - Version 2, Surface Waters and Wetlands Inventory was derived by retaining the wetland and deepwater polygons that compose the NWI digital wetlands spatial data layer and reintroducing any linear wetland or surface water features that were orphaned from the original NWI hard copy maps by converting them to narrow polygonal features. Additionally, the data are supplemented with hydrography data, buffered to become polygonal features, as a secondary source for any single-line stream features not mapped by the NWI and to complete segmented connections. Wetland mapping conducted in WA, OR, CA, NV and ID after 2012 and most other projects mapped after 2015 were mapped to include all surface water features and are not derived data. The linear hydrography dataset used to derive Version 2 was the U.S. Geological Survey's National Hydrography Dataset (NHD). Specific information on the NHD version used to derive Version 2 and where Version 2 was mapped can be found in the 'comments' field of the Wetlands_Project_Metadata feature class. Certain wetland habitats are excluded from the National mapping program because of the limitations of aerial imagery as the primary data source used to detect wetlands. These habitats include seagrasses or submerged aquatic vegetation that are found in the intertidal and subtidal zones of estuaries and near shore coastal waters. Some deepwater reef communities (coral or tuberficid worm reefs) have also been excluded from the inventory. These habitats, because of their depth, go undetected by aerial imagery. By policy, the Service also excludes certain types of "farmed wetlands" as may be defined by the Food Security Act or that do not coincide with the Cowardin et al. definition. Contact the Service's Regional Wetland Coordinator for additional information on what types of farmed wetlands are included on wetland maps. This dataset should be used in conjunction with the Wetlands_Project_Metadata layer, which contains project specific wetlands mapping procedures and information on dates, scales and emulsion of imagery used to map the wetlands within specific project boundaries.
Name: Proposed Riparian Corridor with a 75 ft buffer
Display Field: StreamName
Type: Feature Layer
Geometry Type: esriGeometryPolygon
Description: The Oregon Private Forest Accord and Forest Practices Act specified the methodology to develop and maintain the Statewide Flow Line data. Initial development of these data began with using best available Digital Elevation Models (DEMs) to model a synthetic stream network. Where available, lidar DEMs were resampled to a 2 meter resolution. Where lidar was not available, the National Elevation Dataset (NED, resolution of 10 meters) was used. After streams were model the Fransen fish model (Brian R. Fransen, Steven D. Duke, L. Guy McWethy, Jason K. Walter & Robert E. Bilby. 2006. A Logistic Regression Model for Predicting the Upstream Extent of Fish Occurrence Based on Geographical Information Systems Data, North American Journal of Fisheries Management, 26:4, 960-975, DOI: 10.1577/M04-187.1) was applied to predict fish presence for all streams across Oregon. Historic ODF data (maintained in the ODF Statewide Streams Fish Presence dataset) was then conflated to the synthetic streams to overwrite the fish model outputs with any valid fish survey. These data were checked by Oregon Department of Forestry (ODF) and Oregon Department of Fish & Wildlife (ODFW) GIS staff to meet minimum conflation success rates. Errors were identified and documented for future updates.The Flow Line data will be continuously updated with fish and flow permanence surveys, following established protocols and workflows developed by ODF and ODFW. Errors in conflation with historic data, and errors in geometry from the DEM modeling will also continue to be corrected. This data should be treated as a dynamic layer, with any export product frequently updated to ensure the most current information is being used.
Service Item Id: 71c9238c04db4ca0b9b2a784a89a01d6
Copyright Text: Oregon Department of Forestry GIS (GIS Unit and Forest Resources GIS staff); Oregon Department of Fish and Wildlife Natural Resource Information Management Program; TerrainWorks
Name: Proposed Riparian Corridor with a 50 ft buffer
Display Field: fhdRevDt
Type: Feature Layer
Geometry Type: esriGeometryPolygon
Description: Oregon Fish Habitat Distribution.These data describe areas of suitable habitat believed to be used currently or historically by native or non-native fish populations. The term "currently" is defined as within the past five reproductive cycles. Historical habitat includes suitable habitat that fish no longer access and will not access in the foreseeable future without human intervention. This information is based on sampling, the best professional opinion of Oregon Dept. of Fish and Wildlife or other natural resources agency staff biologists or modeling (see the fhdBasis field). Due to natural variations in run size, water conditions, or other environmental factors, some habitats identified may not be used annually. These data now comply with the Oregon Fish Habitat Distribution Data Standard that was adopted by the Oregon Geographic Information Council in April 2020. The Standard document can be found at: https://www.oregon.gov/geo/standards/OregonFishHabitatDistributionDataStandard_v4.pdf. Historical habitat distribution data are within the scope of the standard and are identified via the habitat use (fhdUseType) attribute. Historical habitats are only identified outside of currently accessible habitat and are not comprehensive. Data representing current habitat for anadromous and resident salmonid species are generally more comprehensive than data for non-game and non-native fish species. All datasets are subject to update as new information becomes available.Key features of the Oregon Fish Habitat Distribution Data include: species, run, life history, habitat use, origin, production, the basis for each record, originator name, originator entity and reference. Habitat distribution data are mapped at a 1:24,000 scale statewide and are based on the National Hydrography dataset. The data are made available as GIS files in both shapefile and ESRI geodatabase format. The data were developed over an extensive time period ranging from 1996 to 2021. The data are now managed on the National Hydrography Dataset and have been synchronized to April 2019 NHD geometry.
Service Item Id: 71c9238c04db4ca0b9b2a784a89a01d6
Copyright Text: Oregon Department of Fish and Wildlife, Jon K. Bowers, Ruth Schellbach. Numerous fisheries biologists from ODFW as well as other natural resource agencies and tribes have contributed toward the development of these data. Data originator names are attributed at the feature level.
Name: Goal 5 - Significant Natural Resources - Pre Ord 865 selection
Display Field: NatFeatType
Type: Feature Layer
Geometry Type: esriGeometryPolygon
Description: It is the policy of Washington County to protect and enhance Significant Natural Areas. There are several significant natural areas in the Rural/Natural Resource Area of Washington County. These unique areas have recreational, scientific and educational value, and deserve protection for continued use by present and future generations. Type of natural feature:WAW = Water Area Wetland. 100-year flood plain, drainage hazard areas, ponds, except those already developed. WAWFWH = Water Area Wetland & Fish Wildlife Habitat. Water-related areas that are also fish and wildlife habitat, including the Riparian Corridor. OS & OSbk = Open SpaceWH = Upland Wildlife Habitat. Identified sensitive habitats, including forested areas coincidental with water areas and wetlands. SNA = Significant Natural Area. Sites of special importance, in their natural condition, for their ecological, scientific, and educational value.SH = Safe Harbor (Cedar Mills-Cedal Hills CP)SWHcu = Significant Wildlife Habitat (Cedar Mills-Cedar Hills CP)
Description: Washington County's plan designations for both the urban and rural portions of the unincorporated area. This data represents the adopted land use districts for the eleven urban community plans, Comprehensive Framework Plan for the Urban Area and the Rural/Natural Resource Plan. Split: Tax Lot split into multiple polygons due to it being crossed by multiple Land Use Districts (Does not apply to exploded multipart polygons)1 = Split0 = Not split9 = Split status is pendingUrban: Tax Lot centroid falls within the Urban Growth Boundary.1 = Urban (Polygon falls within Urban Growth Boundary)0 = Rural (Polygon does not fall within Urban Growth Boundary)9 = Urban status is still to be determinedCheck_: For internal use.1 = Status has been checked and verified 0 = No check necessary9 = Check pending
Service Item Id: 71c9238c04db4ca0b9b2a784a89a01d6
Copyright Text: Washington County Department of Land Use & Transportation, Planning and Development Services Division