Chinook salmon Sacramento River winter run ESU critical habitat for use in ESA/FIFRA consultations

These data represent critical habitat designated (June 16, 1993, 58 FR 33212) under the Endangered Species Act for the Sacramento River winter-run Chinook salmon ESU.The official NMFS critical habitat dataset for this Chinook salmon (SalmonChinook_SacramentoRiverwinterrunESU_19930616) is comprised of both river/stream (line) data and estuary (polygon) data; together the polygons and lines represent the entire final critical habitat designation.The following waterways, bottom and water of the waterways and adjacent riparian zones: The Sacramento River from Keswick Dam, Shasta County (River Mile 302) to Chipps Island (River Mile 0) at the westward margin of the Sacramento-San Joaquin Delta, all waters from Chipps Island westward to Carquinez Bridge, including Honker Bay, Grizzly Bay, Suisun Bay, and Carquinez Strait, all waters of San Pablo Bay westward of the Carquinez Bridge, and all waters of San Francisco Bay (north of the San Francisco/Oakland Bay Bridge) from San Pablo Bay to the Golden Gate Bridge. Adjacent riparian zones are those areas above a streambank that provide cover and shade to the nearshore aquatic areas. This designation does not include any estuarine sloughs.

This spatial data file was modified from NMFS’s “agency-official” species critical habitat data to aid in the ESA/FIFRA section 7 pesticide consultation process. For example, existing data were adapted to incorporate associated watersheds where applicable, based on the USGS Watershed Boundary Dataset HUC-12 data (https://www.usgs.gov/national-hydrography/watershed-boundary-dataset). The modifications to the NMFS critical habitat spatial data make the data more compatible for future analyses with EPA’s Use Data Layers (UDLs). The following “Description” is from the original, “agency-official” data that was used to make this HUC-based map. Most of the metadata record for this species matches the “agency-official” record; however, NMFS added a new "Citation", "File Identifier", “Credits”, “Point of Contact”, and “Lineage Process Step” that are unique to this HUC-based critical habitat data.

These data are not the official legal definition of critical habitat. The Code of Federal Regulations (50 CFR 226.204) is the source for the legal definition of the critical habitat designation.

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Endangered Species Act critical habitat spatial data clarificationsClarifications 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: none

Federal Register final rule page:

June 16, 1993, 58 FR 33218

For more information:

Final Report, Evaluation of Economic Impacts of Alternatives for Designation of Winter-run Chinook Salmon Critical Habitat in the Sacramento River, Hydrosphere Resource Consultants, July 1991.

CFR notes this critical habitat was "redesignated and amended at 64 FR 14067, March 23, 1999" - this final rule made no substantive changes to the existing regulations; it made regulations more concise, better organized, and easier for the public to use.2021-05-17T00:00:00Conformance Check2021-05-17T00:00:00Clarifications 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: none

Federal Register final rule page:

June 16, 1993, 58 FR 33218

For more information:

Final Report, Evaluation of Economic Impacts of Alternatives for Designation of Winter-run Chinook Salmon Critical Habitat in the Sacramento River, Hydrosphere Resource Consultants, July 1991.

CFR notes this critical habitat was "redesignated and amended at 64 FR 14067, March 23, 1999" - this final rule made no substantive changes to the existing regulations; it made regulations more concise, better organized, and easier for the public to use.1