GIS Data Catalog

Stream Type

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Summary

Stream Type is a stream and watercourse layer that identifies a stream or water body segment's regulatory classification.

Description

Stream Type is a watercourse layer that identifies the regulatory stream type per the County’s definitions in the Critical Areas Ordinance.

The baseline data for the physical stream location comes from the Coho Intrinsic Potential stream layer, which was based on the county’s ‘watercourse’ layer circa 2020.

The 4 types of stream are: S -Shoreline of the state, F - Fish bearing or has fish habitat, and N - Non-fish bearing, and O- Other.

Currently many smaller streams do not have enough data to be classified as a particular stream type without a field survey.

If the classification is unknown, the classification is left blank.

Shoreline jurisdiction is defined by Washington Department of Ecology and the County’s Shoreline Master Plan.

Fish observations, fish use based on physical channel measurements, and presumed fish use data come from multiple sources, including King County, WRIA fish distribution maps, Wild Fish Conservancy, and the Statewide Washington Fish Wide Distribution (SWIFD) datasets.

Stream type attribution is based on a hierarchical scheme whereby shoreline and fish observations are populated first, followed by F type designations based on physical channel measurements versus documented fish observations and finally, presumed use.

The Stream Type field is not fish species specific, but there are separate fields for the species listed on the Endangered Species Act list- Chinook salmon, steelhead trout, and bull trout or dolly varden.

These fish species fields are populated based on documented observations, and a blank value does not necessarily indicate that the species would not use the stream reach.

Layer information

Layer Name	streamtype_line
Subject Category	Hydrography
Title	Stream Type
Feature Count	85518
Feature Type	Line
Next Update	Monthly
Spatial reference	EPSG:2926
Control ID	3013
Place Keywords	Washington State, King County, WA, Pacific NW
Theme Keywords	Hydro, Environment
Supplemental Information	None

Table Preview

Attribute information

OBJECTID From Esri	Description Internal feature number. Domain Sequential unique whole numbers that are automatically generated.
WTR_NAME From King County	Description The name of the watercourse, if named. Domain Not Found
WRIA_NO From King County	Description The idenitifying number of the watershed resource inventory area that the reach falls within. Domain Not Found
WRIA_NAME From King County	Description The idenitifying name of the watershed resource inventory area that the reach falls within. Domain Cedar-Sammamish, Duwamish-Green, Puyallup-White, Snohomish
WTRSHD_ID From King County	Description The idenitifying number of the watershed that the reach falls within. Domain 0, 0, 702, 703, 801, 802, 803, 901, 902, 903, 1002, 1003
WTRSHD_NAM From King County	Description The idenitifying name of the watershed that the reach falls within. Domain Cedar River / Lake Washington, Central Puget Sound, Duwamish-Green, Duwamish - Green River, Puyallup River, Sammamish River, Snohomish, Snoqualmie, Snoqualmie River, White River
BASIN_ID From King County	Description The idenitifying number of the basin that the reach falls within. Domain 0.0 to 100306.0 by
BASIN_NAME From King County	Description The idenitifying name of the basin that the reach falls within. Domain Not Found
InPipedSystem From King County	Description Tracks if the segment is at least half of a segment is within a piped system. Domain No, Yes
CurrentAnadromousAccess From King County	Description Tracks if the anadromous species can access the segment given the current passability of barriers downstream. Domain Inaccessible, No, No salmon habitat
AboveTotalNaturalBarrier From King County	Description Tracks whether the selected segment is above a total natural barrier. Domain No, Yes
Revisit From King County	Description Reasons that a segment should be revisited. Domain Calculate score, Delete or Trim, Ecology Review, Location, Potential filled in ditch, Potential nat drainage, Upstream Segments Missing
DataStage From King County	Description DataStage tracks the status of the data as it moves through the QAQC process. Domain Acquire, Approved, Field Review, Final, Office Review, Process, QC
Notes From King County	Description Notes provides extra space for staff to enter additional information not captured in other fields. Domain Not Found
StreamType From King County	Description Stream types tracks the reach's fish use designation. Domain F - Fish habitat, N - Non-fish bearing, S - Shoreline of the state
FishHabitatCriteria From King County	Description Fish habitat criteria tracks the criteria that a F - FIsh habitat designation is based on. Domain Biological, Physical, Presumed
StreamTypeDataSource From King County	Description Stream type data source tracks the entity that supplied the source data for the stream type designation. Domain Department of Ecology, KC 100-year floodplain, KC Fish Passage Program, KC observation records, Northwest Trout, WDFW SWIFD, Wild Fish Conservancy, WRIA salmon maps
HUC12BasinName From King County	Description HUC 12 basin name tracks the name of the hydrologic unit code (HUC) 12 level basin that the stream reach falls within. Domain Not Found
LastEditBy From King County	Description The user who made the last edit to the data. Domain Not Found
LastEditDate From King County	Description The date of the last edit. Domain Not Found
SegmentID From King County	Description Then unique identifier for the reach. Domain Not Found
Chinook From King County	Description Chinook tracks if Chinook salmon have been observed using the reach. Domain Yes
Steelhead From King County	Description Steelhead tracks if steelhead trout have been observed using the reach. Domain Yes
BullTroutorDollyVarden From King County	Description Bull trout or dolly varden tracks if bull trout or dolly varden have been observed using the reach. Domain Yes
GlobalID From King County	Description GlobalID is a 36 character string that ArcGIS uses to uniquely identify features or table rows within a geodatabase and across geodatabases. Domain UNREPRESENTED DOMAIN
Shape From Esri	Description Feature geometry. Domain Coordinates defining the features.
Shape.STLength() From King County	Description Shape is used by ArcGIS to store the length of a line feature. Domain Not Found

Contact information

Maintained by	DNRP - Water and Land Resources
Primary	Harkeerat Kang Harkeerat.Kang@kingcounty.gov

Terms of Use

License	Terms of use and copyright