70297 Data Set Published / External 66018 Endangered Species Act critical habitat Project 2023-07-14 Critical habitat includes the water, waterway bottom, and adjacent riparian zone of specified lakes and river reaches. Adjacent riparian zones are defined as those areas within a horizontal distance of 300 feet (91.4 m) from the normal line of high water of a stream channel (600 feet or 182.8 m, when both sides of the stream channel are included) or from the shoreline of a standing body of water.Critical habitat includes the Columbia River from a straight line connecting the west end of the Clatsop jetty (south jetty, Oregon side) and the west end of the Peacock jetty (north jetty, Washington side) and including all Columbia River estuarine areas and river reaches proceeding upstream to the confluence of the Columbia and Snake Rivers; all Snake River reaches from the confluence of the Columbia River upstream to Hells Canyon Dam. Critical habitat also includes river reaches presently or historically accessible (except reaches above impassable natural falls (including Napias Creek Falls) and Dworshak and Hells Canyon Dams) to Snake River spring/summer-run Chinook salmon in the following hydrologic units: Hells Canyon, Imnaha, Lemhi, Little Salmon, Lower Grande Ronde, Lower Middle Fork Salmon, Lower Salmon, Lower Snake-Asotin, Lower Snake-Tucannon, Middle Salmon-Chamberlain, Middle Salmon-Panther, Pahsimeroi, South Fork Salmon, Upper Middle Fork Salmon, Upper Grande Ronde, Upper Salmon, Wallowa. These data represent critical habitat designated (December 28, 1993, 58 FR 68543) and revised (October 25, 1999, 64 FR 57399) under the Endangered Species Act for the Snake River spring/summer-run Chinook salmon ESU. Theme ISO 19115 Topic Category biota Theme ISO 19115 Topic Category inlandWaters Theme Chinook salmon Theme critical habitat Spatial Columbia River Spatial Idaho Spatial Oregon Spatial Pacific Northwest Spatial Snake River Spatial Washington Portland OR Data Set As Needed Map (digital) CREDIT: National Marine Fisheries Service, West Coast Region ORIGINATORS: Protected Resources Division, West Coast Region, National Marine Fisheries Service; Protected Resources Division, West Coast Region, National Marine Fisheries Service; 70298 Published / External Data Table Yes A collection of geographic features with the same geometry type.; Source: Esri 1 OBJECTID n/a No No Active Internal feature number.; Source: Esri Sequential unique whole numbers that are automatically generated. 2 SHAPE n/a No No Active Feature geometry.; Source: Esri Coordinates defining the features. 3 ID n/a No No Active 9 digit unique identifier for each feature in the geodatabase. Used to relate or join supplemental attribute tables.; Source: National Marine Fisheries Service 4 SCIENAME n/a No No Active Binomial or trinomial scientific name. Value formatted as written in the Code of Federal Regulations.; Source: National Marine Fisheries Service 5 COMNAME n/a No No Active Legal common name of species. Value formatted as written in the Code of Federal Regulations.; Source: National Marine Fisheries Service 6 LISTENTITY n/a No No Active Full text of the ESA listed entity: Species, Subspecies, Distinct Population Segment (DPS), or Evolutionarily Significant Unit (ESU). Value formatted as written in the Code of Federal Regulations. *Note: for entire species listings, this value will be the same as COMNAME value.; Source: National Marine Fisheries Service 7 LISTSTATUS n/a No No Active Current Endangered Species Act listing status.; Source: National Marine Fisheries Service Delisted: Species that were removed from the Endangered Species Act list.; Endangered: Species that are in danger of extinction throughout all or a significant portion of their range.; Threatened: Species that are likely to become endangered in the foreseeable future.; 8 CHSTATUS n/a No No Active Status of the critical habitat designation.; Source: National Marine Fisheries Service Final: A final rule in the Federal Register publishes the regulatory text in full with an effective date. The regulatory text sets out amendments to the Code of Federal Regulations (CFR).; Proposed: A proposed rule in the Federal Register notifies the public of a pending regulation. Any person or organization may comment on it during the comment period.; 9 UNIT n/a No No Active Critical habitat unit name. Null if designation did not specify units or unit names.; Source: National Marine Fisheries Service 10 TAXON n/a No No Active Taxonomic unit.; Source: National Marine Fisheries Service baleen whale: Any of a suborder (Mysticeti) of large whales that have baleen plates in the upper jaw which are used to filter chiefly small crustaceans out of large quantities of seawater.; fish: Any of numerous cold-blooded strictly aquatic craniate vertebrates that include the bony fishes and the cartilaginous and jawless fishes and that have typically an elongated somewhat spindle-shaped body terminating in a broad caudal fin, limbs in the form of fins when present at all, and a 2-chambered heart by which blood is sent through thoracic gills to be oxygenated.; invertebrate: Any animal that lacks a spinal column.; marine reptile: Any of a class (Reptilia) of cold-blooded, air-breathing, usually egg-laying vertebrates that have adapted for an aquatic or semiaquatic life in a marine environment and have a body typically covered with scales or bony plates and a bony skeleton with a single occipital condyle, a distinct quadrate bone usually immovably articulated with the skull, and ribs attached to the sternum.; pinniped: Any of an order or suborder (Pinnipedia) of aquatic carnivorous mammals with all four limbs modified into flippers.; plant: Any of a kingdom (Plantae) of multicellular eukaryotic mostly photosynthetic organisms typically lacking locomotive movement or obvious nervous or sensory organs and possessing cellulose cell walls.; toothed whale: Any of a suborder (Odontoceti) of cetaceans bearing usually numerous simple conical teeth.; 11 LEADOFFICE n/a No No Active Office responsible for the critical habitat Federal Register Notice.; Source: National Marine Fisheries Service Alaska Region: Includes Alaska and adjacent marine waters extending outwards to the 200 nautical mile boundary of the Exclusive Economic Zone.; Greater Atlantic Region: Includes Minnesota, Wisconsin, Michigan, Illinois, Indiana, Ohio, Kentucky, West Virginia, Pennsylvania, New York, Vermont, New Hampshire, Maine, Massachusetts, Rhode Island, Connecticut, New Jersey, Delaware, Maryland, Virginia, North Carolina (north of Cape Hatteras) and adjacent marine waters extending outwards to the 200 nautical mile boundary of the Exclusive Economic Zone.; Office of Protected Resources: Headquarters office responsible for nationwide conservation, protection, and recovery of endangered and threatened marine species listed under the Endangered Species Act.; Pacific Islands Region: Includes Hawai'i, American Samoa, Guam, the Commonwealth of the Northern Mariana Islands, Kingman Reef, Howland Island, Baker Island, Jarvis Island, Wake Island, Johnston Atoll, Palmyra Atoll and adjacent marine waters extending outwards to the 200 nautical mile boundary of the Exclusive Economic Zone.; Southeast Region: Includes North Carolina (south of Cape Hatteras), South Carolina, Georgia, Florida, Alabama, Mississippi, Louisiana, Texas, Arkansas, Iowa, Kansas, Kentucky, Missouri, Nebraska, New Mexico, Oklahoma, Tennessee, the Commonwealth of Puerto Rico, the U.S. Virgin Islands and adjacent marine waters extending outwards to the 200 nautical mile boundary of the Exclusive Economic Zone.; West Coast Region: Includes Idaho, Washington, Oregon, California and adjacent marine waters extending outwards to the 200 nautical mile boundary of the Exclusive Economic Zone.; 12 FRN n/a No No Active Federal Register Notice citation for the critical habitat designation (final rule or proposed rule). Volume #, FR, Page Number (Example: 79 FR 39855); Source: National Marine Fisheries Service 13 PUBDATE n/a No No Active Federal Register Notice publication date. MM/DD/YYYY format; Source: National Marine Fisheries Service 14 EFFECTDATE n/a No No Active Effective date for a final critical habitat designation. Null for proposed critical habitat. MM/DD/YYYY format ; Source: National Marine Fisheries Service 15 LENGTHKm n/a No No Active Geodesic length calculated in kilometers.; Source: National Marine Fisheries Service 16 CREATEDATE n/a No No Active Date spatial feature was created or last edited. MM//DD/YYYY format; Source: National Marine Fisheries Service 17 NOTES n/a No No Active Additional information about the feature that is not contained in other fields.; Source: National Marine Fisheries Service 18 INPORTURL n/a No No Active Feature class metadata URL. InPort is the National Marine Fisheries Service's official metadata catalog found at: https://inport.nmfs.noaa.gov/inport/; Source: National Marine Fisheries Service 19 SHAPE_Length n/a No No Active Length of feature in internal units.; Source: Esri Positive real numbers that are automatically generated. 20 HABTYPE n/a No No Active ; Source: Data Steward 2025 Person Markle, Robert robert.markle@noaa.gov 1201 NE Lloyd Blvd Portland OR 97232 503-230-5419 Metadata Contact 2025 Person Markle, Robert robert.markle@noaa.gov 1201 NE Lloyd Blvd Portland OR 97232 503-230-5419 Point of Contact 2025 Person Markle, Robert robert.markle@noaa.gov 1201 NE Lloyd Blvd Portland OR 97232 503-230-5419 Publication Date -124.083015 -113.046168 46.703183 43.81243 Geographic 2D EPSG:4326 WGS 84 World Geodetic System 1984 WGS 84 6378137 298.257223563 1 Geodetic Lattitude Lat degree north 2 Geodetic Longitude Lon degree east Unclassified These spatial data are not the official legal definitions of critical habitat. Proposed rules, final rules, and the Code of Federal Regulations (50 CFR 226) are the official sources of critical habitat. Version 6.2 (Build 9200) ; Esri ArcGIS 10.8.1.14362 Clarifications only apply to this feature class. Military areas ineligible for designation (qualifying INRMP): none Military areas excluded due to national security impacts: none Indian lands excluded: none Economic exclusions: none Habitat Conservation Plan (HCP) exclusions: none Unoccupied areas designated: yes Federal Register final rule pages: Original designation December 28, 1993, 58 FR 68543 Revision October 25, 1999, 64 FR 57399 No ESA 4(b)(2) report for this designation.2023-07-14T00:00:00Endangered Species Act critical habitat spatial data clarifications 1 Data creation process 2023. FINAL_CH_SNRspsuChk_POST_PROCESSED_v2.shp Snake River (SNR) spring/summer-run Chinook data were developed as part of an effort to interpret and depict several salmonid critical habitat designations completed in the 1990s that relied on text-based descriptions but lacked GIS data. Critical habitat areas were identified based on the following: - The regulatory definition of ESA critical habitat for this ESU found at 50 CFR 226.205 (b) and the supporting final rule (58 FR 68543, December 28, 1993) and revision (64 FR 57399, October 10, 1999); - United States Geological Survey (USGS) high resolution National Hydrography Dataset (NHD) downloaded February 2018; - Intrinsic Potential (IP) data developed by the Northwest Fisheries Science Center (NWFSC); - Technical Recovery Team (TRT) fish population data developed by the NWFSC; - National Elevation Data and Digital Topographic Maps; - Oregon Fish Passage Barriers Geodatabase (ODFW_44_5_ofpbds_gdb, published 2020-05-28); - Washington Fish Passage Barriers Geodatabase (WdfwFishPassage.gdb, published 2021-03-15); - Idaho Fish Passage Barriers shapefile (downloaded 2021-03-18); - StreamNet Generalized Fish Distribution, Summer Chinook (January 2012); - StreamNet Generalized Fish Distribution, Spring Chinook (January 2012); - Columbia River Intertribal Fish Commission (CRITFC) data (critfc_chinook_extent_May2020.shp) historic and current spring chinook salmon distribution in the Grande Ronde River basin; - United States Forest Service (USFS) and Bonneville Power Administration (BPA) juvenile Chinook density model output (FDAT_Phase2_Chinook_StreamSegmentScenarios_DensityResults.shp published 2020-04-30); - Snake River steelhead DPS critical habitat data (2005-08-15) used as a proxy; - The professional judgment of biologists from NMFS West Coast Region (Interior Columbia Basin Office and Protected Resources Division). Spatial analysis steps to produce data: 1) Clipped the NHD to the text description from the critical habitat designation. 2) Partitioned the NHD into 100 meter segments. 3) Calculated the gradient of each 100 meter segment using a 10 meter USGS digital elevation model (DEM). 4) Used the NHD's flow direction and a geometric network to analyze gradient, removed segments upstream of 7% gradients. 5) Retained segments downstream of 7% gradients that were too small (<= 20 meters) to rely on the gradient value (i.e., 1 to 2 pixels in the DEM) or were artificial paths (NHD FCode 55800) to maintain network connectivity. 6) Removed intermittent and ephemeral streams, canals/ditches, and pipelines according to NHD FCodes. 7) Retained segments that overlapped with StreamNet chinook distribution data (field observations) and/or NWFSC intrinsic potential data (model). 8) Removed segments upstream from total natural barriers, Napias Ck falls, Dworshak Dam, Hells Canyon Dam. 9) Removed segments identified by NMFS biologists as not being accessible to or suitable habitat for Chinook salmon. 10) Retained segments identified by NMFS biologists as being flagged for inclusion as critical habitat (e.g., NHD errors where streams were disconnected from mainstems, presumed historical habitat above 7% gradient breaks, etc.). 11) The output was FINAL_CH_SNRspringsummerChinook.shp (final critical habitat footprint in 100 meter segments) which was then post processed and exported into FINAL_CH_SNRspsuChk_POST_PROCESSED_v2.shp. Post processing involved using the final source data to clip the 2018 NHD Flowline, i.e., remove 100 meter segments to reduce number of vertices and capture the critical habitat footprint on the original 2018 Flowline. Process captured in FINAL_POST_PROCESSING_SNRspsuCHK_ch.gdb. 2023-07-14T12:00:00 2 Converted source data FINAL_CH_SNRspsuChk_POST_PROCESSED_v2.shp (GCS_North_American_1983) into standardized feature class SalmonChinook_SnakeRiverspringsummerrunESU_19991025 (GCS_WGS_84 wkid 4326) using the West Coast Region Critical Habitat Geodatabase processing protocol. During standardization, geometry was not edited. Attributes were edited. Metadata was edited and populated using the final rules/CFR and the source FINAL_CH_SNRspsuChk_POST_PROCESSED_v2.shp (GCS_North_American_1983). Migrated field: "GNIS_Name" into "UNIT". Dropped fields: OBJECTID, Permanent_Identifier, FDate, Resolution, GNIS_ID, LengthKM, ReachCode, FlowDir, WBArea_Permanent_Identifier, FType, FCode, MainPath, InNetwork, VisibilityFilter, Shape_Length. 2023-07-14T17:00:00 70298 Entity gov.noaa.nmfs.inport:70297 Shanna Dunn 2023-07-17T15:10:12 Lincoln Rehm 2025-09-25T15:54:25 2023-07-17 West Coast Regional Office WCRO 501 West Ocean Blvd Long Beach CA 90802-4213 https://www.westcoast.fisheries.noaa.gov/ 1001 Public No No 2023-07-17 3 Years 2026-07-17