This application displays point locations with links to PDF documents that illustrate the layout of state route interchanges. With this dataset you can locate, view and print drawings of state highway interchange areas, couplets and other select locations, in pdf format. The drawings are not drawn to scale. The dataset and the associated PDF documents are updated through state highway construction contracts, subsequent on-site inspections and input from WSDOT staff.If you have any questions about this data, please contact Lou Baker, Roadway Geometric Supervisor - [email protected] - (360) 570-2361. Attribute Definitions:Web Link - Links to the interchange pdf document on the InternetInterchange Description – Describes the name of the interchangeRoute Identifier – Defines the state route number of the interchangeLatitude – Geographic latitude coordinate of the interchangeLongitude - Geographic longitude coordinate of the interchange