Regional Maintenance Area boundaries of the Washington State Department of Transportation are depicted as polygons.

The Washington State Department of Transportation (WSDOT) Aviation Division conducted an Aviation Economic Impact Study (AEIS) of Washington’s 134 public-use airports to measure...

Washington State Department of Transportation's six region boundaries are depicted as polygons.

This dataset is used as a general reference layer of Seismic Lifelines identified by the Washington State Department of Transportation (WSDOT). It is maintained by the WSDOT...

Rail lines of Washington State depicted as linework. Each separately owned mainline route is depicted as a single line. Principle routes are shown with selected sidings and...

This feature class contains environmentally sensitive areas that front state highways, including wetlands, waterbodies, streams, and channel migration zones. Roadway segments...

This data set is a linear representation of Washington State Routes that are designated as part of the Scenic and Recreational Highway System by RCW47.39.020 and RCW47.42.140....

This dataset provides directional traffic data for application to the modified, or full design level matrix in Chapters 430, or 440 of the Design Manual to establish the...

2011 Annual Average Daily Traffic figures and total truck percentages for state highway traffic count locations monitored by WSDOT's Statewide Travel and Collision Data Office....

This dataset provides directional traffic data for application to the modified, or full design level matrix in Chapters 430, or 440 of the Design Manual to establish the...

This dataset provides directional traffic data for application to the modified, or full design level matrix in Chapters 430, or 440 of the Design Manual to establish the...

2014 Annual Average Daily Traffic figures and total truck percentages for state highway traffic count locations monitored by WSDOT's Transportation Data and GIS Office. Figures...

2015 Annual Average Daily Traffic figures and total truck percentages for state highway traffic count locations monitored by WSDOT's Transportation Data and GIS Office. Figures...

This dataset provides directional traffic data for application to the modified, or full design level matrix in Chapters 430, or 440 of the Design Manual to establish the...

This map service depicts historic data for the Washington State Route 24K linear referencing system including state routes, ramps, turnbacks, ferry terminals, and proposed state...

2012 Annual Average Daily Traffic figures and total truck percentages for state highway traffic count locations monitored by WSDOT's Statewide Travel and Collision Data Office....

PCC Lines are shown by rail line segments. This feature class was built using existing data sources including railroad line track charts, track right-of-way maps, and recently...

This map service depicts historic data for the Washington State Route 500K linear referencing system. This data is a snapshot of the roadway system for the year specified in the...

Point locations of rail bridges on the PCC rail system. The locations are placed by latitude and longitude coordinates. For bridges with multiple sections, a separate point...

This map service depicts historic data for the Washington State Route 24K linear referencing system including state routes, ramps, turnbacks, ferry terminals, and proposed state...