TagSea-Tac Airport(1835)
-
2024-07-02Appendix E: Coastal Resources – FAA CZMP Negative Determination Letter
The Federal Aviation Administration (FAA) issued a Negative Determination in July 2024, concluding that planned near-term construction and equipment relocation projects at Seattle-Tacoma International Airport (SEA) are not reasonably likely to cause effects on Washington State's coastal zone. The 31 Near-Term Projects, which include taxiway extensions, blast pad expansions, and relocation of navigational aids, are part of the airport's Sustainable Airport Master Plan and are scheduled to begin construction in 2026. The FAA requested written concurrence from the Washington State Department of Ecology, while the Port of Seattle remains responsible for separate consistency certification for any projects requiring Clean Water Act permits. -
2024-06-20Notice of public hearing: Port Of Seattle bond and note issuance
The Port of Seattle held a public hearing on June 20, 2024, to consider issuing up to $400 million in commercial paper notes and up to $850 million in revenue bonds to fund improvements across its maritime and aviation facilities. A significant portion—up to $600 million—is earmarked for Seattle-Tacoma International Airport projects, including runway repairs, terminal construction, noise mitigation, and related airfield upgrades. The notice also covers funding for seaport terminals, marinas, and Port technology infrastructure throughout the Seattle area. -
SEL and DNL 65 Noise Metrics Educational Slide — Port Of Seattle Part 150 Study
An educational slide produced by the Port of Seattle for Seattle-Tacoma International Airport explaining aircraft noise metrics, including Single Event Sound Level (SEL), Hourly LEQ, and Day-Night Level (DNL). The slide illustrates how varying numbers of daily flight events (1, 10, or 100) can produce identical DNL 65 noise levels, and includes charts showing sound levels over time periods ranging from seconds to 24 hours. -
2024-06-12Sea-Tac Airport PFAS SHARP report — part 1 of 2
A SHARP (Site Hazard Assessment Ranking and Prioritization) report for SeaTac Airport covering PFAS contamination identified at four areas: fire station, fuel farm, fire training area, and industrial wastewater system. The report details media scores for groundwater, soil, surface water, sediment, and indoor air, noting concerns about Des Moines Creek and the City of Highline’s -
2024-06-10SEL, Hourly LEQ, and DNL Aircraft Noise Measurement Diagram — Part 150 Study Technical Review Committee Meeting #1
Three-panel educational diagram illustrating how aircraft noise is measured and averaged across different time scales: Single Event Sound Level (SEL) showing two aircraft flyovers with Lmax and duration annotations, Hourly LEQ showing cumulative noise over one hour, and Day-Night Level (DNL) showing 24-hour noise distribution with a 10-dB nighttime penalty applied during nighttime hours. No source organization or document identifier is visible. -
2024-06-05Appendix F Public Outreach
The Port of Seattle held public workshops in June 2024 to kick off an update to the Seattle-Tacoma International Airport Part 150 Noise Study, gathering community input from residents and other interested parties near the airport. The workshops were promoted through a wide range of online publications, social media, and community outreach channels, with materials available in multiple languages including Spanish, Somali, Vietnamese, and Chinese. A follow-up workshop on Draft Noise Exposure Maps was scheduled for September–October 2025. -
2024-06-05
Appendix F Public Outreach
The Port of Seattle held public workshops in June 2024 to kick off an update to the Seattle-Tacoma International Airport Part 150 Noise Study, gathering community input from residents and other interested parties near the airport. The workshops were promoted through a wide range of online publications, social media, and community outreach channels, with materials available in multiple languages including Spanish, Somali, Vietnamese, and Chinese. A follow-up workshop on Draft Noise Exposure Maps was scheduled for September–October 2025. -
Sea-Tac Airport Workers in High-Visibility Vests at Rental Car Center
A group of approximately ten workers wearing orange and yellow high-visibility safety vests stand together in what appears to be an airport rental car center, with visible Avis and Budget car rental signage and a shuttle bus directional sign overhead. The diverse group includes both men and women, some wearing winter hats and one woman in a hijab with a visible ID badge. -
2024-06-01Purpose and Need Technical Report: Sustainable Airport Master Plan – Near-Term Projects
This technical report, prepared by Landrum & Brown for the Port of Seattle in June 2024, outlines the purpose and need for near-term capital projects identified in Sea-Tac Airport's Sustainable Airport Master Plan. It is part of a broader set of supporting documents that also covers alternatives analysis, terminal needs assessment, and air cargo facility requirements. The report provides the foundational justification for proposed airport improvements and infrastructure expansions at Seattle-Tacoma International Airport. -
2024-06-01Purpose and Need Technical Report: Sustainable Airport Master Plan – Near-Term Projects
This technical report, prepared by Landrum & Brown for the Port of Seattle in June 2024, outlines the purpose and need for near-term construction and improvement projects identified in Sea-Tac Airport's Sustainable Airport Master Plan. It is part of a broader set of supporting documents that also covers alternatives analysis, terminal needs assessment, and air cargo facility requirements. The report provides the foundational justification for proposed airport development decisions and infrastructure changes.