Washington State LRS (2025)

Identification_Information:

Citation:

Citation_Information:

Originator: Washington State Department of Transportation
Publication_Date: 20260427
Title: Washington State LRS (2025)
Geospatial_Data_Presentation_Form: vector digital data

Description:

Abstract:

State Routes are depicted as lines with State Route identifiers and route measure attributes. All State Routes are included in this dataset. A directional indicator has been added to the RouteIdentifier to distinguish between the increasing and decreasing direction of mileposting. Please direct questions about this dataset to: TransportationGISDataSteward@wsdot.wa.gov.

Purpose:

This data set is used: 1) for general-purpose base mapping; 2) as a Linear Referencing System (LRS); 3) for locating features on the State Route network by State Route Accumulated Route Mileage (dynamic segmentation).

Time_Period_of_Content:

Time_Period_Information:

Single_Date/Time:

Calendar_Date: 20241231

Currentness_Reference: ground condition

Status:

Progress: Complete
Maintenance_and_Update_Frequency: Annually

Spatial_Domain:

Bounding_Coordinates:

West_Bounding_Coordinate: -124.674393
East_Bounding_Coordinate: -116.861321
North_Bounding_Coordinate: 49.042512
South_Bounding_Coordinate: 45.504794

Keywords:

Theme:

Theme_Keyword_Thesaurus: None
Theme_Keyword: state route
Theme_Keyword: LRS
Theme_Keyword: highway
Theme_Keyword: SR

Place:

Place_Keyword_Thesaurus: None
Place_Keyword: United States
Place_Keyword: Washington
Place_Keyword: USA
Place_Keyword: WA
Place_Keyword: Pacific Northwest

Access_Constraints: None
Use_Constraints:

The Washington State Department of Transportation shall not be liable for any activity involving this data with regard to lost profits or savings or any other consequential damages; or the fitness for use of the data for a particular purpose; or the installation of the data, its use, or the results obtained.

Point_of_Contact:

Contact_Information:

Contact_Organization_Primary:

Contact_Organization: Washington State Department of Transportation

Contact_Electronic_Mail_Address: TransportationGISDataSteward@wsdot.wa.gov

Data_Set_Credit: Washington State Department of Transportation
Native_Data_Set_Environment: Version 6.2 (Build 9200) ; Esri ArcGIS 10.9.1.28388

Data_Quality_Information:

Attribute_Accuracy:

Attribute_Accuracy_Report:

State Route numbers and Accumulated Route Mileage values were obtained from the State Highway Log.

Logical_Consistency_Report:

This data forms a network representing the connectivity of State Routes (SR's) for Washington state. This includes all State Routes, US Routes, Interstates, Frontage Roads, Ramps, Ferry Terminals and some Proposed routes located within the TRIPS database.

Completeness_Report:

The data set contains all of the state routes in the state of Washington. San Juan County contains no State Routes.

Positional_Accuracy:

Horizontal_Positional_Accuracy:

Horizontal_Positional_Accuracy_Report: Positional accuracy of this data set has not been determined.

Lineage:

Source_Information:

Type_of_Source_Media: None
Source_Contribution:

Geometry depicting Washington State Highways, attributes, and measure values to create the various 24k LRSs. These sources have included: USGS 7.5 Minute Quadrangles WSDOT Interchange Diagrams WSDOT State Highway Log GPS Based LRS Orthoimagery from DNR, Nies Mapping Group, Inc., NAIP, and the WSDOT Photogrammerty Office For more detailed information about these sources contact the data steward.

Process_Step:

Process_Description:

A directional indicator ( i or d ) was added to the SR24kLRS datasets and then merged into one featureclass.

Process_Date: 20260423
Process_Contact:

Contact_Information:

Contact_Organization_Primary:

Contact_Organization: Washington State Department of Transportation

Contact_Electronic_Mail_Address: TransportationGISDataSteward@wsdot.wa.gov

Spatial_Data_Organization_Information:

Indirect_Spatial_Reference: State Route and Accumulated Route Mileage
Direct_Spatial_Reference_Method: Vector
Point_and_Vector_Object_Information:

SDTS_Terms_Description:

SDTS_Point_and_Vector_Object_Type: String
Point_and_Vector_Object_Count: 12093

Spatial_Reference_Information:

Horizontal_Coordinate_System_Definition:

Planar:

Map_Projection:

Map_Projection_Name: NAD 1983 HARN StatePlane Washington South FIPS 4602 Feet
Lambert_Conformal_Conic:

Standard_Parallel: 45.83333333333334
Standard_Parallel: 47.33333333333334
Longitude_of_Central_Meridian: -120.5
Latitude_of_Projection_Origin: 45.33333333333334
False_Easting: 1640416.666666667
False_Northing: 0.0

Planar_Coordinate_Information:

Planar_Coordinate_Encoding_Method: coordinate pair
Coordinate_Representation:

Abscissa_Resolution: 0.0003280833333333333
Ordinate_Resolution: 0.0003280833333333333

Planar_Distance_Units: foot_us

Geodetic_Model:

Horizontal_Datum_Name: D North American 1983 HARN
Ellipsoid_Name: GRS 1980
Semi-major_Axis: 6378137.0
Denominator_of_Flattening_Ratio: 298.257222101

Entity_and_Attribute_Information:

Detailed_Description:

Entity_Type:

Entity_Type_Label: StateRouteLRS

Attribute:

Attribute_Label: OBJECTID
Attribute_Definition: Internal feature number.
Attribute_Definition_Source: Esri
Attribute_Domain_Values:

Unrepresentable_Domain:

Sequential unique whole numbers that are automatically generated.

Attribute:

Attribute_Label: RouteIdentifier
Attribute_Definition:

A unique Route identifier to identify a route (City,County State, Tribal, Forest) in any given data set. For State Routes, Route IDs are assigned by WSDOT's GIS and Roadway Data Office

Attribute_Definition_Source: WSDOT Application - DOTS

Attribute:

Attribute_Label: Label
Attribute_Definition: Text used for display purposes
Attribute_Definition_Source: WSDOT ITD, Data Resource Managment Office

Attribute:

Attribute_Label: SymbolCode
Attribute_Definition: A code used for cartographic symbolization
Attribute_Definition_Source: WSDOT ITD, Data Resource Managment Office
Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: IS
Enumerated_Domain_Value_Definition: Interstate Route

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: US
Enumerated_Domain_Value_Definition: US Route

Enumerated_Domain:

Enumerated_Domain_Value: RA
Enumerated_Domain_Value_Definition: Ramp

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: SR
Enumerated_Domain_Value_Definition: State Route

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: LC
Enumerated_Domain_Value_Definition: Local Road either frontage road of Local access approach.

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: FT
Enumerated_Domain_Value_Definition: Ferry Terminal

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: RA
Enumerated_Domain_Value_Definition: Ramp

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: PR
Enumerated_Domain_Value_Definition: Proposed Route

Attribute:

Attribute_Label: StateRouteNumber
Attribute_Definition:

The number assigned to the State Route and enacted into law by the Washington State Legislature

Attribute_Definition_Source: WSDOT Application - DOTS

Attribute:

Attribute_Label: RelatedRouteType
Attribute_Definition:

A Code that represents a a classification of a route associated with a mainline state route, examples include: Couplet, Spur, Alternate Route, etc.

Attribute_Definition_Source: WSDOT Application - DOTS
Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: Null
Enumerated_Domain_Value_Definition: Mainline
Enumerated_Domain_Value_Definition_Source: Washington State Highway Log

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: AR
Enumerated_Domain_Value_Definition: Alternate Route
Enumerated_Domain_Value_Definition_Source: Washington State Highway Log

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: CO
Enumerated_Domain_Value_Definition: Couplet
Enumerated_Domain_Value_Definition_Source: Washington State Highway Log

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: CD
Enumerated_Domain_Value_Definition: Collector Distributor Decreasing
Enumerated_Domain_Value_Definition_Source: Washington State Highway Log

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: CI
Enumerated_Domain_Value_Definition: Collector Distributor Increasing
Enumerated_Domain_Value_Definition_Source: Washington State Highway Log

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: FD
Enumerated_Domain_Value_Definition: Frontage Road Decreasing
Enumerated_Domain_Value_Definition_Source: Washington State Highway Log

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: FI
Enumerated_Domain_Value_Definition: Frontage Road Increasing
Enumerated_Domain_Value_Definition_Source: Washington State Highway Log

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: FT
Enumerated_Domain_Value_Definition: Ferry Terminal
Enumerated_Domain_Value_Definition_Source: Washington State Highway Log

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: FU
Enumerated_Domain_Value_Definition: Future Route
Enumerated_Domain_Value_Definition_Source: Washington State Highway Log

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: HD
Enumerated_Domain_Value_Definition: Grade-Seperated HOV Decreasing
Enumerated_Domain_Value_Definition_Source: Washington State Highway Log

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: HI
Enumerated_Domain_Value_Definition: Grade-Seperated HOV Increasing
Enumerated_Domain_Value_Definition_Source: Washington State Highway Log

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: LX
Enumerated_Domain_Value_Definition: Crossroad within Interchange
Enumerated_Domain_Value_Definition_Source: Washington State Highway Log

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: P1-P9
Enumerated_Domain_Value_Definition: Off Ramp, Increasing
Enumerated_Domain_Value_Definition_Source: Washington State Highway Log

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: PR
Enumerated_Domain_Value_Definition: Proposed Route
Enumerated_Domain_Value_Definition_Source: Washington State Highway Log

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: Q1-Q9
Enumerated_Domain_Value_Definition: On Ramp Increasing
Enumerated_Domain_Value_Definition_Source: Washington State Highway Log

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: R1-R9
Enumerated_Domain_Value_Definition: Off Ramp Decreasing
Enumerated_Domain_Value_Definition_Source: Washington State Highway Log

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: S1-S9
Enumerated_Domain_Value_Definition: On Ramp Decreasing
Enumerated_Domain_Value_Definition_Source: Washington State Highway Log

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: RL
Enumerated_Domain_Value_Definition: Reversible Lane
Enumerated_Domain_Value_Definition_Source: Washington State Highway Log

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: SP
Enumerated_Domain_Value_Definition: Spur
Enumerated_Domain_Value_Definition_Source: Washington State Highway Log

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: TB
Enumerated_Domain_Value_Definition: Turnback
Enumerated_Domain_Value_Definition_Source: Washington State Highway Log

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: U1-U9
Enumerated_Domain_Value_Definition: Weigh Station Ramp Increasing
Enumerated_Domain_Value_Definition_Source: Washington State Highway Log

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: W1-W9
Enumerated_Domain_Value_Definition: Weigh Station Ramp Decreasing
Enumerated_Domain_Value_Definition_Source: Washington State Highway Log

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: X1-X9
Enumerated_Domain_Value_Definition: Rest Area Ramp Increasing
Enumerated_Domain_Value_Definition_Source: Washington State Highway Log

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: Y1-Y9
Enumerated_Domain_Value_Definition: Rest Area Ramp Decreasing
Enumerated_Domain_Value_Definition_Source: Washington State Highway Log

Attribute:

Attribute_Label: RelatedRouteQualifier
Attribute_Definition:

A reference used to uniquely identify the physical location of the State Route Related Route Type. The State Route Related Route Qualifier can be based on a State Route Milepost, street name, city, or other distinguishing geographic reference.

Attribute_Definition_Source: WSDOT Application - DOTS

Attribute:

Attribute_Label: SHAPE
Attribute_Definition: Feature geometry.
Attribute_Definition_Source: Esri
Attribute_Domain_Values:

Unrepresentable_Domain: Coordinates defining the features.

Attribute:

Attribute_Label: LRSDate
Attribute_Definition:

The Linear Referencing System date that this record is using for location.

Attribute_Definition_Source: WSDOT Application - DOTS

Attribute:

Attribute_Label: InventoryDirection
Attribute_Definition:

A code that represents whether the State Route Mileposts associated with the route are in the (i) Increasing direction or (d) in the Decreasing direction.

Attribute_Definition_Source: TDGMO Office

Attribute:

Attribute_Label: GlobalID

Attribute:

Attribute_Label: SHAPE.STLength()

Distribution_Information:

Distributor:

Contact_Information:

Contact_Organization_Primary:

Contact_Organization:

Washington State Department of Transportation, Office of Information Technology

Contact_Person: Jordyn Mitchell

Contact_Position: GIS Database Administrator
Contact_Electronic_Mail_Address: mitchejo@wsdot.wa.gov

Distribution_Liability: See access and use constraints information.
Custom_Order_Process:

Download individual data sets from https://gisdata-wsdot.opendata.arcgis.com

Metadata_Reference_Information:

Metadata_Date: 20260423
Metadata_Contact:

Contact_Information:

Contact_Organization_Primary:

Contact_Organization: Washington State Department of Transportation

Contact_Electronic_Mail_Address: TransportationGISDataSteward@wsdot.wa.gov

Metadata_Standard_Name: FGDC Content Standard for Digital Geospatial Metadata
Metadata_Standard_Version: FGDC-STD-001-1998
Metadata_Time_Convention: local time

Washington State LRS (2025)

Metadata: