Washington Aviation System Plan (WASP)

Read the Washington Aviation System Plan, which studies the performance of Washington's entire aviation system.

The Washington Aviation System Plan (WASP) primary purposes are to:

  • Study the performance and interaction of Washington's entire aviation system.
  • Understand the contributions of individual airports to the system as a whole.

The study involves examining aviation user requirements, current airport usage levels and based aircraft and capacity to meet current and future demand.

The 2017 Washington State Aviation System Plan Report is available by request (please contact WSDOT Aviation Senior Planner Rob Hodgman).

WASP Executive Summary - July 2017 (PDF 1805KB)

Letter from WSDOT Secretary Roger Millar (PDF 347KB)

To develop the 2017 report, it was built upon previous efforts and recommendations that included:

  • 2009 Long-Term Air Transportation Study
  • 2012 Aviation Economic Impact Study
  • 2014 Airport Investment Study
  • 2015 Airport Investment Solutions Study

Traction tires are a special type of tire

manufactured with at least 1/8 of an inch tread. Traction tires are usually marked with a mountain/snowflake symbol, the letters M+S or “All Season.”

Carry chains, practice before leaving

Requiring chains keeps traffic moving during storms rather than closing a pass or roadway.

Prep your car. Fill up your gas tank,

pack jumper cables, ice scraper, warm clothing, snacks and water.