Washington (State). Dept. of Transportation.

• 1987 estimate of the cost of completing the national system of interstate and defense highways in the State of Washington
• 1990 secondary highway priorities
• 1991 estimate of the cost of completing the national system of interstate and defense highways in the state of Washington
• 1992 secondary highway priorities
• A history of highways
• A quality journey
• A strategic delivery plan for the Washington State Department of Transportation's capital construction program
• A strategic delivery plan for WSDOT's capital construction program
• Action plan for social, economic and environmental considerations in the planning and development of transportation systems and improvements
• Bike book
• Digest of the Washington State transportation plan
• Highway heritage markers