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Washington Aviation System Plan (WASP)

In response to stakeholder input, the Washington State Department of Transportation is extending the WASP’s 30-day public comment period deadline from April 17 to Thursday, April 27.

Contact Nisha Marvel, WSDOT Aviation communications, at 206-440-4790 for more information. 

WASP Draft Report (March 2017)

Cover (pdf 1397 kb)
Table of Contents (pdf 57 kb)
Chapter 1 - Overview (pdf 100 kb)
Chapter 2 - Goals and Objectives (pdf 95 kb) 
Chapter 3 - Inventory (pdf 644 kb)
Chapter 4 - Forecast (pdf 695 kb) 
Chapter 5 - Capacity (pdf 503 kb) 
Chapter 6 - Classifications and Metrics (pdf 324 kb)
Chapter 7 - Alternative Strategies (pdf 3,572 kb) 
Chapter 8 - Multimodal   (pdf 75 kb)
Chapter 9 - Policy Recommendations (pdf 154 kb) 

Appendix A - Glossary of Terms (pdf 100 kb)
Appendix B - Emerging Issues - Aerospace Manufacturing (pdf 1,137 kb)
Appendix B - Emerging Issues - Aircraft Fuels (pdf 330 kb)
Appendix B - Emerging Issues - Aircraft Innovation (pdf 356 kb)
Appendix B - Emerging Issues - ATC Funding Challenges (pdf 492 kb)
Appendix B - Emerging Issues - Decline in GA (pdf 219 kb)
Appendix B - Emerging Issues - Infrastructure Funding Challenges (pdf 282 kb)
Appendix B - Emerging Issues - NextGen Impacts (pdf 257 kb)
Appendix B - Emerging Issues - Unmanned Aircraft Systems (pdf 1,769 kb)
Appendix C - Airport Classifications (pdf 70 kb)

WASP Background:

The Washington State Department of Transportation is updating the Washington Aviation System Plan (WASP). The primary purposes of the WASP update 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.

WASP Priorities:

Build upon previous efforts and recommendations:

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

Identity issues and evaluate impacts to determine needed airport and system improvements. Engage with the community and seek input. Prioritize development and make recommendations.

Community Engagement:
WASP Community Engagement Plan (pdf 727 kb)

Stakeholder Groups:

  • Advisory Committee
  • Interested Parties
  • Multimodal Working Group
  • Emerging Issues Working Groups

To sign up as an "Interested Party" contact Nisha Marvel at .

Contact Information:

Robert Hodgman
WASP Project Manager/Senior Aviation Planner

Nisha Marvel
WSDOT Aviation communications

Useful Links:

WASP Folio