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Popular pages
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Washington State Department of Transportation
The official home page for WSDOT. Take a look at how we keep people, businesses and the economy moving by operating and improving the state's transportation systems.
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Standard plans | WSDOT
Use the drawings found on this page to standardize fabrication, installation and construction methods for specific items of work. They complement the contract documents and the Standard Specifications...
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Construction & planning | WSDOT
Learn about projects, studies, and major projects in and around your community. See our statewide plans and funding or get familiar with our efforts to protect the environment.
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Statewide GIS maps & data layers | WSDOT
You can get instant access to state transportation data, maps and interactive map applications.
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All manuals & standards | WSDOT
Find manuals, standards, specifications and details covering requirements for projects.
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Pavement design & management | WSDOT
Access the Washington State Pavement Management System (WSPMS), and learn how we provide structural pavement analysis and design, and conduct pavement research.