Washington Aviation System Plan (WASP)

The Washington Aviation System Plan studies the performance of Washington's entire aviation system.

The principal purposes of the Washington Aviation System Plan (WASP) are to:

  • Study the performance of Washington State Aviation System’s ability to meet the collective needs of aviation users within the state.
  • Understand the contributions of individual airports to the entirety of the system.
  • Provide data necessary for effective decision-making the development of policies and recommendations that will advance Washington’s aviation system improvements.

The study involves examining aviation user requirements, current airport usage levels and current numbers of based aircraft. The study also outlines  the system’s capacity to meet current demand requirements as well as forecasts of system capacity and demand. The WASP is currently being updated with a projected completion date in 2024. As components of the update become available, they will be published on this site.

The most recent comprehensive WASP was completed in 2017. Copies of the 2017 WASP can be requested by contacting David Ison, Aviation Planner by email at david.ison@wsdot.wa.gov.

WASP Executive Summary - July 2017 (PDF 1805KB)

Letter from WSDOT Secretary Roger Millar (PDF 347KB)

To develop the 2024 report, it is being built upon previous efforts and recommendations that included:

Slow down on ice and snow.

It's easier to skid or lose control traveling at higher speeds. Give yourself more time to stop.

Carry chains, practice installing them.

Winter conditions could mean chains are required on your route. Practice putting them on your vehicle ahead of time.

Pack your winter car kit.

Carry extra supplies like warm clothing, ice scraper and brush, jumper cables and other emergency items.