Washington Aviation System Plan 2017 (WASP)

*2020 Update* WSDOT Aviation, with the assistance of consulting firm Kimley-Horn, has completed a new statewide Aviation Economic Impact Study for the Washington Aviation System.  The study revealed the state’s 134 public-use airport system contributes 407,042 jobs, $26.8 billion in labor income, and $107 billion in total economic impact (business revenues) to our state’s economy and communities.