• Current Practices - Manual is temporarily unavailable. For current details, contact Laurinda Anglin at (206)440-4923.
• General Special Provisions (7kb, pdf) or (20kb, doc)
• Sign Types (13kb, pdf) or (21kb, doc)
• Sign Specifications WinXP (640kb, zip)
• Message Length Calculator (7kb, zip)
• Sign Inventory (191kb, xls)
• Roundabout Guidelines (591kb, pdf)
• Detail Library
• Northwest Region Control City (12kb, pdf) or (24kb, doc)
• Team Contact (25kb, doc)
• Headquarter Traffic Design
• WSDOT Publications
• Standard Plans
• Developer Services
• Local Agency and Developer Review Process (29kb, doc)
• Local Agency and Developer Review Flowchart (25kb, pdf)
• Signal Priority Array (SPA)
• Channelization Priority Array (CPA)
• Traffic Studies Database
• Washington State Cities Population Estimates