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STNI

STNISea-Tac Noise.Info

  • Solve for Sea-Tac. Solve for every airport.
  • Since 2016, working to obtain justice for everyone living under the flight path.
  • Less Noise. Cleaner Air. Better Public Health. Compensation.
  • Everything you think you know about the airport is wrong.

Since 2016, we've worked to obtain justice for residents living under the flight path. Noise. Pollution. Health. Compensation..

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TagAirport Expansion(34)

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  • 2026-01-16 00:36

    The Economics of Air Transport in Europe Part One: Air Transport and Growth

    A research report examining the relationship between air transport and economic growth in Europe, analyzing where and when aviation expansion might drive economic benefits. The study includes a review of air travel as an economic enabler and develops a typology of air transport-economy relationships across European regions.
    TagsAirport Expansion, UECNA
  • Cd9464C39116769B1F1C213A3A63Bc935C5B889E
    2025-12-01 02:54

    D.C. Circuit Court of Appeals Cracks Down on FAA Compliance with NEPA

    Article discusses a D.C. Circuit Court of Appeals decision that addresses FAA compliance with the National Environmental Policy Act (NEPA). The court appears to have made rulings that strengthen environmental review requirements for aviation projects.
    CategoriesLitigation, News Stories TagsAirport Expansion, Airport Law, Airport Noise Law, ANCA, Aviation Committees, Aviation Emissions
  • 2025-10-28 19:42

    2026 Airfield Work Areas Layout Plan

    A detailed airport layout diagram showing various 2026 airfield work areas marked in different colors, including runway work areas, taxiway work areas, and cargo line work areas. The diagram includes a comprehensive legend identifying different construction and maintenance zones planned for the airfield.
    CategoriesKey Documents Tags1st Runway, Airport, Airport Expansion, Airport Layout Plans, Airport Maintenance Technology Magazine
  • 2025-10-28 19:42

    Snow Storage Expansion Phase II by Lagoon 3

    Aerial map showing the location of Snow Storage Expansion Phase II by Lagoon 3 at an airport facility. The map displays the completed Phase I snow storage area in green and the planned Phase II expansion in blue, with runway infrastructure visible in the background.
    CategoriesKey Documents TagsAirport, Airport Expansion, Airport Layout Plans, Port Of Seattle
  • 2025-10-28 00:00

    Port of Seattle Regular Commission Meeting

    Port of Seattle Commission regular meeting agenda for October 28, 2025, including executive session, public comment procedures, consent agenda items covering construction contracts, lease agreements, and new business items including a revised welcoming port policy directive.
    CategoriesKey Documents TagsAirport, Airport Committees, Airport Development Fund, Airport Expansion, Port Of Seattle
  • 2025-10-28 00:00

    Port of Seattle Regular Commission Meeting

    Port of Seattle Commission regular meeting agenda for October 28, 2025, including executive session, public comment procedures, consent agenda items covering construction contracts, lease agreements, and new business items including a revised welcoming port policy directive.
    CategoriesKey Documents TagsAirport, Airport Committees, Airport Development Fund, Airport Expansion, Port Of Seattle
  • 2025-10-22 00:00

    StART SEA Stakeholder Advisory Round Table Meeting Agenda – October 22, 2025

    Agenda for StART meeting covering FAA’s Record of Decision for Sustainable Airport Master Plan Near-Term Projects, Part 150 Noise Study updates, and various working group activities. The meeting includes presentations on airport sustainability projects, noise programs, and policy working group updates.
    CategoriesRegular Events TagsAirport, Airport Committees, Airport Development Fund, Airport Expansion, Airport Noise Report, Port Of Seattle
  • 2025-10-22 00:00

    Programmatic Environmental Checklist – Seattle-Tacoma International Airport Flight Corridor Management Program

    Environmental checklist for SEA’s Flight Corridor Management Program, which identifies and removes tree obstructions from airport flight corridors every five years to comply with FAA regulations. The document outlines the program’s background, implementation cycles, and environmental review process.
    CategoriesKey Documents TagsAirport, Airport Expansion, FAA, Port Of Seattle, SEPA
  • 2024-12-21 19:39

    Construction Site with Steel Beam Installation

    Ironworkers and officials watch a signed beam be lifted by crane during a “topping out” ceremony at the C Concourse Expansion Project at the Seattle-Tacoma International Airport on Thursday. Turner Construction Co. and Apex Steel used the crane to put one of the final steel beams in place atop the highest point. (Karen Ducey / The Seattle Times)
    TagsAirport, Airport Expansion, Construction
  • 2024-06-25 23:37

    SR 509, I-5 to 24th Avenue S. (Stage 1b)

    Aerial view map showing the SR 509 expressway construction project from I-5 to 24th Avenue S, including interchange ramps, toll points, and future light rail connections. The map displays the Kent area with various residential neighborhoods and commercial facilities including SeaTac airport vicinity.
    CategoriesResources TagsAirport, Airport Development Fund, Airport Expansion, Port Of Seattle

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  • PSCAA Advisory Council Meeting Agenda
    Add to CalendarMWednesday Mar 11, 9:00am - 11:35am
    1904 3rd Avenue, Suite 105, Seattle, WA 98101
    Call to order – Roll Call – Quorum Established – Land Acknowledgement We would like to acknowledge that our Agency operates in four present-day counties, which are the traditional lands of the Coast Salish people, past and present. This acknowledgement does not take the place of authentic relationships with indigenous communities in our jurisdiction and [...]

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Issues

Sea-Tac Airport is currently undergoing the largest and longest expansion in its history, collectively known as the Sustainable Airport Master Plan (SAMP). Some of it you can already hear, but you’re probably not aware of what it all means. Here’s what you need to know.
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Read This!

This is the first study to combine a one-year mobile monitoring campaign with PMF (Positive Matrix Factorization) analysis to simultaneously estimate source-specific air pollution exposures and emission factors of different vehicle types. This methodology can be extended to other metropolitan areas.
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