Aviation planning

Learn about the statewide planning we are doing for aviation.

See some details on our Aviation Economic Impact Study and access our economic impact calculator and mapping tool. 

Find the Statewide Capital Improvement Program (SCIP) lists for our state's airports.

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.

8,683 animals crossed the Snoqualmie Pass East Project area

as recorded by WSDOT and partners in 2020 and 2021.

46% increase in Amtrak Cascades ridership to 251,000 passengers

in 2021 compared to 172,000 in 2020.

Nine wetland and stream mitigation sites across 32.7 acres added

to our monitoring program in 2021 to help offset climate change impacts.