TagSustainable Airport Master Plan(93)

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2025-12-02
So you thought that Sea-Tac expansion was really underway?

Transportation By Mike Merritt December 3, 2025 The Port of Seattle has embarked on a much-needed, massive Seattle-Tacoma International Airport expansion. But the plan is far from taking off. The projects, including a new passenger terminal with 19 new aircraft gates, still must undergo another year of environmental review and win approval by the Port

CategoriesFrom The WebTagsAlaska Airlines, Health, Noise, Post Alley, SAMP, Sustainable Airport Master Plan, Third Runway
Wetland-and-Stream-Delineation-Appendices-compressed-pdf

TagsSAMP, Sustainable Airport Master Plan
Wetland-and-Stream-Delineation-Appendices-compressed

TagsSAMP, Sustainable Airport Master Plan
2032-NA-pdf

TagsSAMP, Sustainable Airport Master Plan
2032-NA

TagsSAMP, Sustainable Airport Master Plan
SAMP Draft EA: How to provide a great public comment

1How to provide effective public comment by December 13, 2024 Because new ways for you to participate will likely become available, this article may be subject to updates. Introduction This is the second of a two-part article concerning the Sustainable Airport Master Plan Draft Environmental Assessment (SAMP Draft EA). If you’re looking for the short

CategoriesExplainersTagsEIS, Environmental Impact Statement, SAMP, Sustainable Airport Master Plan
Appendix A Forecast and Operational Assumptions

TagsSAMP, Sustainable Airport Master Plan
Appendix B Purpose Need and Alternatives Supporting Information

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Appendix C Air Quality Climate

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Appendix D Biological Resources

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As the source for federal transportation grants, the Puget Sound Regional Council was charged with developing a system to meet the growing need for commercial aviation. When the search for a second airport failed, they authorized the Port of Seattle to build the Third Runway, with a mandate to develop a noise abatement and mitigation program. In their effort to stop the Third Runway, the ACC argued over every detail of the Port's efforts--including property buyouts and sound insulation. The dispute was meant to be settled by a three member Expert Arbitration Panel. This is their final report. It finds 2-1, that the Port's program was insufficient in several respects. Despite that, funding for the Third Runway was approved by the PSRC, and the 'Port Package' program, proceeded largely unchanged. Expert Arbitration Panel's final decision finding that the Port of Seattle had not shown sufficient reduction in real on-the-ground noise impacts to satisfy noise reduction conditions required for approval of a third runway at Sea-Tac International Airport. The majority decision concluded the Port's noise abatement programs were insufficient despite being impressive in scope.

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