Description: The LWI Sample Plot Points dataset is part of the Oregon Department of State Lands (DSL) Local Wetlands Inventory (LWI) LWI_Statewide dataset. “Sample Plot” means a specific area on the ground where soils, vegetation and hydrology data are recorded on a field data form per OAR 141-90-0035 definitions, in order to make a wetland determination, and are mapped as points in DSL approved LWIs.Per OAR 141-086-0210 (2009) Where property access is granted, sample plot data must be provided according to the following minimum standards:(a) Verify each wetland with at least one sample plot that best characterizes the wetland;(b) Verify with at least one sample plot each potential wetland where land use activities such as ditching, water diversion, or agricultural practices are likely to have significantly altered site conditions, making observations from a distance or a site walk-over unreliable; and(c) Verify with at least one-sample plot potential wetlands with unreliable indicators (e.g., one dominant plant that grows in both wetlands and non-wetlands, such as Phalaris arundinacea).The LWI Sample Plot Points dataset is part of the LWI_Statewide dataset. The LWI_Statewide dataset is part of the Statewide Wetlands Inventory (SWI) and supersedes the national inventory level mapping included in the SWI within the LWI study area. New LWIs are added to the LWI_Statewide dataset upon approval by DSL.Some local governments must inventory and include protections for resources listed in Oregon’s land use planning goals 5 (Natural Resources), 16 (Estuaries) and 17 (Coastal Shorelands). An LWI fulfills the wetlands inventory requirements for Goal 5 and Goal 17 (OAR 660-015, 660-016, and 660-023). DSL is responsible for the requirements and review of LWIs for Goal compliance and other natural resource planning efforts. In accordance with the DSL’s LWI standards, the approximate location and boundaries of all wetlands and waters are identified within a specified study area.Further information on the development and results of individual LWIs is contained in the LWI reports, original maps, and individual GIS datasets, available for view and download from the DSL LWI web page. The LWI GIS Data Description and template is available on the DSL LWI web page.
Copyright Text: Local Wetlands Inventories received and approved by DSL dating from 1992 through 2019 were digitized and standardized by DSL, Institute for Natural Resources, and Oregon State University Libraries and Press. DSL combined the individual standardized LWI datasets into an LWI_Statewide dataset. New LWIs are added to the LWI_Statewide dataset upon approval by DSL. Individual LWIs are developed by consultants for local governments. Find full reports, citations, maps, and individual LWI GIS datasets on the DSL LWI web page.
The digitizing and standardization of LWI GIS datasets approved by the Oregon Department of State Lands prior to 2018 has been funded wholly or in part by the United States Environmental Protection Agency under assistance agreement number CD-01J37701-02 to the Oregon Department of State Lands. The contents of this LWI dataset do not necessarily reflect the views and policies of the Environmental Protection Agency, nor does mention of trade names or commercial products constitute endorsement or recommendation for use.
Description: The Probable Wetland Points dataset displays “probable wetlands” as mapped in original DSL approved LWIs. "Probable Wetland" or “PW” means an area noted during the LWI development that appeared to meet wetland criteria but was less than one half of an acre in size or was small and of undetermined size. Wetlands that were less than one half of an acre may have been mapped as wetland polygons or as probable wetlands. LWIs developed prior to 2001 did not require mapping of wetlands less than one half acre in size. PWs were required as points beginning in 2001 and transitioned toward being represented as polygons starting around 2018. Probable wetlands are labeled as "PW” on the maps. A few LWIs represented delineated wetlands smaller than one-half acre in size as “DW” points (this does not comply with rule). No further characterization or assessment is required for PW wetlands in LWIs.All waters and wetlands, including PWs, mapped in a DSL approved LWI indicate that cities and counties shall submit a wetland land use notice to DSL for proposed land use activities affecting mapped wetlands and other waters (ORS 215.418 and 227.350).The LWI Probable Wetland Points dataset is part of the LWI_Statewide dataset that is created from the combined individual standardized LWI datasets and is part of the Statewide Wetlands Inventory (SWI). The LWI_Statewide dataset supersedes the national inventory level mapping included in the SWI within the LWI study areas.The LWI Probable Wetland Points dataset is one of five LWI layers contained in the LWI_Subset dataset pulled from the LWI_Statewide dataset. The LWI_Subset dataset is used for the ORWAP and SFAM assessments Map Viewer.Some local governments must inventory and include protections for resources listed in Oregon’s land use planning goals 5 (Natural Resources), 16 (Estuaries) and 17 (Coastal Shorelands). An LWI fulfills the wetlands inventory requirements for Goal 5 and Goal 17 (OAR 660-015, 660-016, and 660-023). DSL is responsible for the requirements and review of LWIs for Goal compliance and other natural resource planning efforts. In accordance with the DSL’s LWI standards, the approximate location and boundaries of all wetlands and waters are identified within a specified study area. Upon approval by DSL, the LWI must be used in lieu of the National Wetlands Inventory (NWI) and is incorporated into the SWI.New LWIs are added to the LWI_Statewide and the LWI_Subset datasets upon approval by DSL.Further information on the development and results of individual LWIs is contained in the LWI reports, original maps, and individual GIS datasets, available for view and download from the DSL LWI web page. The LWI GIS Data Description and template is available on the DSL LWI web page.
Copyright Text: Local Wetlands Inventories received and approved by DSL dating from 1992 through 2019 were digitized and standardized by DSL, Institute for Natural Resources, and Oregon State University Libraries and Press. DSL combined the individual standardized LWI datasets into an LWI_Statewide dataset. New LWIs are added to the LWI_Statewide dataset upon approval by DSL. Individual LWIs are developed by consultants for local governments. Find full reports, citations, maps, and individual LWI GIS datasets on the DSL LWI web page.
The digitizing and standardization of LWI GIS datasets approved by the Oregon Department of State Lands prior to 2018 has been funded wholly or in part by the United States Environmental Protection Agency under assistance agreement number CD-01J37701-02 to the Oregon Department of State Lands. The contents of this LWI dataset do not necessarily reflect the views and policies of the Environmental Protection Agency, nor does mention of trade names or commercial products constitute endorsement or recommendation for use.
Description: The LWI Stream Lines dataset displays waterways mapped as lines in DSL approved LWIs.All waters and wetlands mapped in a DSL approved LWI indicate that cities and counties shall submit a wetland land use notice to DSL for proposed land use activities affecting mapped wetlands and other waters (ORS 215.418 and 227.350).The LWI Stream Lines dataset is part of the LWI_Statewide dataset that is composed from the combined individual standardized LWI datasets and is part of the Statewide Wetlands Inventory (SWI). The LWI_Statewide dataset supersedes the national inventory level mapping included in the SWI within the LWI study areas. The LWI Stream Lines dataset is one of five LWI layers contained in the LWI_Subset dataset pulled from the LWI_Statewide dataset and is used for the ORWAP and SFAM assessments Map Viewer. New LWIs are added to the LWI_Statewide and the LWI_Subset datasets upon approval by DSL.Some local governments must inventory and include protections for resources listed in Oregon’s land use planning goals 5 (Natural Resources), 16 (Estuaries) and 17 (Coastal Shorelands). An LWI fulfills the wetlands inventory requirements for Goal 5 and Goal 17 (OAR 660-015, 660-016, and 660-023). DSL is responsible for the requirements and review of LWIs for Goal compliance and other natural resource planning efforts. In accordance with the DSL’s LWI standards, the approximate location and boundaries of all wetlands and waters are identified within a specified study area. Upon approval by DSL, the LWI must be used in lieu of the National Wetlands Inventory (NWI) and is incorporated into the SWI.Further information on the development and results of individual LWIs is contained in the LWI reports, original maps, and individual GIS datasets, available for view and download from the DSL LWI web page. The LWI GIS Data Description and template is available on the DSL LWI web page.
Copyright Text: Local Wetlands Inventories received and approved by DSL dating from 1992 through 2019 were digitized and standardized by DSL, Institute for Natural Resources, and Oregon State University Libraries and Press. DSL combined the individual standardized LWI datasets into an LWI_Statewide dataset. New LWIs are added to the LWI_Statewide dataset upon approval by DSL. Individual LWIs are developed by consultants for local governments. Find full reports, citations, maps, and individual LWI GIS datasets on the DSL LWI web page.
The digitizing and standardization of LWI GIS datasets approved by the Oregon Department of State Lands prior to 2018 has been funded wholly or in part by the United States Environmental Protection Agency under assistance agreement number CD-01J37701-02 to the Oregon Department of State Lands. The contents of this LWI dataset do not necessarily reflect the views and policies of the Environmental Protection Agency, nor does mention of trade names or commercial products constitute endorsement or recommendation for use.
Description: “Artificial Features” represent wetland or waters features that are human created or human manipulated (modified) natural features that were mapped as lines in DSL approved LWIs. Examples include culverts, ditches, and straightened streams. While straightened streams should be depicted in the LWI Stream Lines or LWI Waterbody (polygon) layers, the history of such features is not always known during LWI development.These features may be regulated by DSL and do require cities and counties to submit a Wetland Land Use Notice (WLUN) to DSL for proposed land use activities affecting mapped wetlands and other waters (ORS 215.418 and 227.350).The LWI Artificial Features Lines dataset is part of the LWI_Statewide dataset, which is part of the Statewide Wetlands Inventory (SWI) and supersedes the national inventory level mapping included in the SWI within the LWI study area.New LWIs are added to the LWI_Statewide dataset upon approval by DSL.Some local governments must inventory and include protections for resources listed in Oregon’s land use planning goals 5 (Natural Resources), 16 (Estuaries) and 17 (Coastal Shorelands). An LWI fulfills the wetlands inventory requirements for Goal 5 and Goal 17 (OAR 660-015, 660-016, and 660-023). DSL is responsible for the requirements and review of LWIs for Goal compliance and other natural resource planning efforts. In accordance with the DSL’s LWI standards, the approximate location and boundaries of all wetlands and waters are identified within a specified study area.Further information on the development and results of individual LWIs is contained in the LWI reports, original maps, and individual GIS datasets, available for view and download from the DSL LWI web page. The LWI GIS Data Description and template is available on the DSL LWI web page.
Copyright Text: Local Wetlands Inventories received and approved by DSL dating from 1992 through 2019 were digitized and standardized by DSL, Institute for Natural Resources, and Oregon State University Libraries and Press. DSL combined the individual standardized LWI datasets into an LWI_Statewide dataset. New LWIs are added to the LWI_Statewide dataset upon approval by DSL. Individual LWIs are developed by consultants for local governments. Find full reports, citations, maps, and individual LWI GIS datasets on the DSL LWI web page.
The digitizing and standardization of LWI GIS datasets approved by the Oregon Department of State Lands prior to 2018 has been funded wholly or in part by the United States Environmental Protection Agency under assistance agreement number CD-01J37701-02 to the Oregon Department of State Lands. The contents of this LWI dataset do not necessarily reflect the views and policies of the Environmental Protection Agency, nor does mention of trade names or commercial products constitute endorsement or recommendation for use.
Description: The Probable Wetland Polygons dataset displays ”probable wetlands” as mapped in original DSL approved LWIs. "Probable Wetland" or “PW” means an area noted during the LWI development that appeared to meet wetland criteria but was less than one half of an acre in size or was small and of undetermined size. Wetlands that were less than one half of an acre were mapped as wetland polygons or as probable wetlands. Beginning around 2018 PWs may have been represented as polygons, rather than points, on the appropriate parcel(s) and were labeled as "PW” on the maps. No further characterization or assessment was required for PWs in LWIs.All waters and wetlands, including PWs, mapped in a DSL approved LWI indicate that cities and counties shall submit a wetland land use notice (WLUN) to DSL for proposed land use activities affecting mapped wetlands and other waters (ORS 215.418 and 227.350).The LWI Probable Wetland Polygons dataset is part of the LWI_Statewide dataset that is created from the combined individual standardized LWI datasets and is part of the Statewide Wetlands Inventory (SWI). The LWI_Statewide dataset supersedes the national inventory level mapping included in the SWI within the LWI study areas.The LWI Probable Wetland Polygons dataset is one of five LWI layers contained in the LWI_Subset dataset pulled from the LWI_Statewide dataset. The LWI_Subset dataset is used for the ORWAP and SFAM assessments Map Viewer.New LWIs are added to the LWI_Statewide and the LWI_Subset datasets upon approval by DSL.Some local governments must inventory and include protections for resources listed in Oregon’s land use planning goals 5 (Natural Resources), 16 (Estuaries) and 17 (Coastal Shorelands). An LWI fulfills the wetlands inventory requirements for Goal 5 and Goal 17 (OAR 660-015, 660-016, and 660-023). DSL is responsible for the requirements and review of LWIs for Goal compliance and other natural resource planning efforts. In accordance with the DSL’s LWI standards, the approximate location and boundaries of all wetlands and waters are identified within a specified study area. Upon approval by DSL, the LWI must be used in lieu of the National Wetlands Inventory (NWI) and is incorporated into the SWI.Further information on the development and results of individual LWIs is contained in the LWI reports, original maps, and individual GIS datasets, available for view and download from the DSL LWI web page. The LWI GIS Data Description and template is available on the DSL LWI web page.
Copyright Text: Local Wetlands Inventories received and approved by DSL dating from 1992 through 2019 were digitized and standardized by DSL, Institute for Natural Resources, and Oregon State University Libraries and Press. DSL combined the individual standardized LWI datasets into an LWI_Statewide dataset. New LWIs are added to the LWI_Statewide dataset upon approval by DSL. Individual LWIs are developed by consultants for local governments. Find full reports, citations, maps, and individual LWI GIS datasets on the DSL LWI web page.
The digitizing and standardization of LWI GIS datasets approved by the Oregon Department of State Lands prior to 2018 has been funded wholly or in part by the United States Environmental Protection Agency under assistance agreement number CD-01J37701-02 to the Oregon Department of State Lands. The contents of this LWI dataset do not necessarily reflect the views and policies of the Environmental Protection Agency, nor does mention of trade names or commercial products constitute endorsement or recommendation for use.
Description: Local Wetlands Inventory development requires an LWI Wetlands dataset displaying all wetlands greater than or equal to one-half of an acre and all wetlands identified in DSL-approved wetland delineation reports to be identified and mapped as polygons with a goal accuracy of +/- 5 meters (under 2009 LWI rules).LWIs developed prior to 2001 did not require mapping of wetlands less than one half acre in size. Beginning in 2001 mapping of “Probable Wetland" or “PW” is required and means an area noted during the LWI development that appeared to meet wetland criteria but was less than one half of an acre in size or was small and of undetermined size. Therefore, there may be unmapped wetlands within the study areas of all LWIs, particularly older inventories.LWI wetland polygons are associated with wetland functional assessment results and wetland summary sheets, found within the LWI report. Wetland polygons include required attributes including unique wetland identification label, Cowardin classification code(s) and modifiers, HGM classification, approximate wetland size, Locally Significant Wetland status determination, whether the wetland investigation was onsite, offsite, or visually confirmed, and DSL's wetland delineation report file number, if any.The LWI Wetlands dataset is part of the LWI_Subset pulled from the LWI_Statewide dataset. The LWI_Subset dataset is used for the ORWAP and SFAM assessments map viewer.Upon approval by DSL the LWI must be used in lieu of the National Wetlands Inventory (NWI) and is incorporated into the Statewide Wetlands Inventory. The approved LWI must be used by cities and counties for notifying DSL of land use applications affecting mapped wetlands and other waters in the wetland land use notice (WLUN) process (ORS 215.418 and 227.350).New LWIs are added to the LWI_Statewide dataset upon approval by DSL. The LWI_Statewide dataset is part of the Statewide Wetlands Inventory and supersedes the national inventory level mapping included in the SWI web map. View the SWI web map on the DSL SWI web page.Some local governments must inventory and include protections for resources listed in Oregon’s land use planning goals 5 (Natural Resources), 16 (Estuaries) and 17 (Coastal Shorelands). An LWI fulfills the wetlands inventory requirements for Goal 5 and Goal 17 (OAR 660-015, 660-016, and 660-023). DSL is responsible for the requirements and review of LWIs for Goal compliance and other natural resource planning efforts. In accordance with the DSL’s LWI standards, the approximate location and boundaries of all wetlands and waters are identified within a specified study area.Further information on the individual LWI development, results and citations can be found in the LWI report on the DSL LWI webpage. The original maps, individual GIS datasets, the DSL LWI GIS Data Description and template are also available for view and download on the DSL LWI web page.
Copyright Text: Local Wetlands Inventories received and approved by DSL dating from 1992 through 2019 were digitized and standardized by DSL, Institute for Natural Resources, and Oregon State University Libraries and Press. DSL combined the individual standardized LWI datasets into an LWI_Statewide dataset. New LWIs are added to the LWI_Statewide dataset upon approval by DSL. Individual LWIs are developed by consultants for local governments. Find full reports, citations, maps, and individual LWI GIS datasets on the DSL LWI web page.
The digitizing and standardization of LWI GIS datasets approved by the Oregon Department of State Lands prior to 2018 has been funded wholly or in part by the United States Environmental Protection Agency under assistance agreement number CD-01J37701-02 to the Oregon Department of State Lands. The contents of this LWI dataset do not necessarily reflect the views and policies of the Environmental Protection Agency, nor does mention of trade names or commercial products constitute endorsement or recommendation for use.
Description: The LWI_Waterbody dataset displays waters, such as ponds, lakes, and rivers, mapped as polygons in DSL approved LWIs.These waters do prompt cities and counties to submit a Wetland Land Use Notice (WLUN) to DSL for proposed land use activities affecting mapped wetlands and other waters (ORS 215.418 and 227.350).The LWI Waterbody dataset is part of the LWI_Statewide dataset, which is part of the Statewide Wetlands Inventory (SWI) and supersedes the national inventory level mapping included in the SWI within the LWI study area. New LWIs are added to the LWI_Statewide dataset upon approval by DSL.Some local governments must inventory and include protections for resources listed in Oregon’s land use planning goals 5 (Natural Resources), 16 (Estuaries) and 17 (Coastal Shorelands). An LWI fulfills the wetlands inventory requirements for Goal 5 and Goal 17 (OAR 660-015, 660-016, and 660-023). DSL is responsible for the requirements and review of LWIs for Goal compliance and other natural resource planning efforts. In accordance with the DSL’s LWI standards, the approximate location and boundaries of all wetlands and waters are identified within a specified study area.Further information on the development and results of individual LWIs is contained in the LWI reports, original maps, and individual GIS datasets, available for view and download from the DSL LWI web page. The LWI GIS Data Description and template is available on the DSL LWI web page.
Copyright Text: Local Wetlands Inventories received and approved by DSL dating from 1992 through 2019 were digitized and standardized by DSL, Institute for Natural Resources, and Oregon State University Libraries and Press. DSL combined the individual standardized LWI datasets into an LWI_Statewide dataset. New LWIs are added to the LWI_Statewide dataset upon approval by DSL. Individual LWIs are developed by consultants for local governments. Find full reports, citations, maps, and individual LWI GIS datasets on the DSL LWI web page.
The digitizing and standardization of LWI GIS datasets approved by the Oregon Department of State Lands prior to 2018 has been funded wholly or in part by the United States Environmental Protection Agency under assistance agreement number CD-01J37701-02 to the Oregon Department of State Lands. The contents of this LWI dataset do not necessarily reflect the views and policies of the Environmental Protection Agency, nor does mention of trade names or commercial products constitute endorsement or recommendation for use.
Description: “LWI Artificial Features Polygons” represent wetland or water features that are human created or human manipulated (modified) natural features that were mapped as polygons in DSL approved LWIs. Examples include ponds and wetlands. While some of these features may belong in the LWI Waterbody (polygon) layer, the history of such features is not always known during LWI development.These features may be regulated by DSL and do require cities and counties to submit a Wetland Land Use Notice (WLUN) to DSL for proposed land use activities affecting mapped wetlands and other waters (ORS 215.418 and 227.350).The LWI Artificial Features Polygons dataset is part of the LWI_Statewide dataset, which is part of the Statewide Wetlands Inventory (SWI) and supersedes other inventory level mapping included in the SWI within the LWI study area. New LWIs are added to the LWI_Statewide dataset upon approval by DSL.Some local governments must inventory and include protections for resources listed in Oregon’s land use planning goals 5 (Natural Resources), 16 (Estuaries) and 17 (Coastal Shorelands). An LWI fulfills the wetlands inventory requirements for Goal 5 and Goal 17 (OAR 660-015, 660-016, and 660-023). DSL is responsible for the requirements and review of LWIs for Goal compliance and other natural resource planning efforts. In accordance with the DSL’s LWI standards, the approximate location and boundaries of all wetlands and waters are identified within a specified study area.Further information on the development and results of individual LWIs is contained in the LWI reports, original maps, and individual GIS datasets, available for view and download from the DSL LWI web page. The LWI GIS Data Description and template is available on the DSL LWI web page.
Copyright Text: Local Wetlands Inventories received and approved by DSL dating from 1992 through 2019 were digitized and standardized by DSL, Institute for Natural Resources, and Oregon State University Libraries and Press. DSL combined the individual standardized LWI datasets into an LWI_Statewide dataset. New LWIs are added to the LWI_Statewide dataset upon approval by DSL. Individual LWIs are developed by consultants for local governments. Find full reports, citations, maps, and individual LWI GIS datasets on the DSL LWI web page.
The digitizing and standardization of LWI GIS datasets approved by the Oregon Department of State Lands prior to 2018 has been funded wholly or in part by the United States Environmental Protection Agency under assistance agreement number CD-01J37701-02 to the Oregon Department of State Lands. The contents of this LWI dataset do not necessarily reflect the views and policies of the Environmental Protection Agency, nor does mention of trade names or commercial products constitute endorsement or recommendation for use.
Description: Study areas of LWIs are defined by the local governments conducting the inventories and as approved by DSL.Upon approval by DSL the LWI must be used in lieu of the National Wetlands Inventory (NWI) and is incorporated into the Statewide Wetlands Inventory (SWI). The approved LWI must be used by cities and counties in lieu of the SWI for notifying DSL of land use applications affecting mapped wetlands and other waters in the Wetland Land Use Notice (WLUN) process (ORS 215.418 and 227.350). The LWI Study Area dataset is part of the LWI_Statewide dataset that is created from the combined individual standardized LWI datasets and is part of the Statewide Wetlands Inventory (SWI). The LWI_Statewide dataset supersedes the national inventory level mapping included in the SWI within the LWI study areas.The LWI Study Area dataset is one of five LWI layers contained in the LWI_Subset dataset pulled from the LWI_Statewide dataset. The LWI_Subset dataset is used for the ORWAP and SFAM assessments Map Viewer.New LWIs are added to the LWI_Statewide and the LWI_Subset datasets upon approval by DSL.Some local governments must inventory and include protections for resources listed in Oregon’s land use planning goals 5 (Natural Resources), 16 (Estuaries) and 17 (Coastal Shorelands). An LWI fulfills the wetlands inventory requirements for Goal 5 and Goal 17 (OAR 660-015, 660-016, and 660-023). DSL is responsible for the requirements and review of LWIs for Goal compliance and other natural resource planning efforts. In accordance with the DSL’s LWI standards, the approximate location and boundaries of all wetlands and waters are identified within a specified study area.Further information on the development and results of individual LWIs is contained in the LWI reports, original maps, and individual GIS datasets, available for view and download from the DSL LWI web page. The LWI GIS Data Description and template is available on the DSL LWI web page.
Copyright Text: Local Wetlands Inventories received and approved by DSL dating from 1992 through 2019 were digitized and standardized by DSL, Institute for Natural Resources, and Oregon State University Libraries and Press. DSL combined the individual standardized LWI datasets into an LWI_Statewide dataset. New LWIs are added to the LWI_Statewide dataset upon approval by DSL. Individual LWIs are developed by consultants for local governments. Find full reports, citations, maps, and individual LWI GIS datasets on the DSL LWI web page.
The digitizing and standardization of LWI GIS datasets approved by the Oregon Department of State Lands prior to 2018 has been funded wholly or in part by the United States Environmental Protection Agency under assistance agreement number CD-01J37701-02 to the Oregon Department of State Lands. The contents of this LWI dataset do not necessarily reflect the views and policies of the Environmental Protection Agency, nor does mention of trade names or commercial products constitute endorsement or recommendation for use.