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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.

TagAirport(185)

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  • 2024-06-25

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

    A planning rendering for SR 509, Stage 1b, showing proposed highway improvements between I-5 and 24th Avenue S. in the Kent/Des Moines area. Labeled features include new northbound and southbound I-5/SR 509 ramp connections, a new Veterans Drive I-5 undercrossing and SR 516 interchange improvements, wider sidewalks and shared use paths, and the future SoundTransit Kent/Des Moines Station along SR 99.
    TagsAirport, Airport Development Fund, Airport Expansion, Port Of Seattle
  • 2024-06-25

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

    An aerial rendering depicting the SR 509 Expressway extension (Stage 1b) in SeaTac, Washington, showing planned infrastructure including a new 24th Avenue South interchange, new 34th Avenue S connection to I-5, a reconfigured S 208th Street, a toll point on SR 509, and proximity to the Sound Transit Angle Lake Station. The project corridor runs east-west connecting I-5 to existing SR 509 near Angle Lake.
    CategoriesResources TagsAirport, Airport Expansion, Airport Layout Plans, seatac, Sound Transit
  • 2024-05-18

    2025 Federal Aviation Reauthorization Wins for Washington – Protecting Airport Communities

    Promotional graphic from U.S. Representative Adam Smith (Washington's 9th District) highlighting 2025 Federal Aviation Reauthorization provisions focused on sustainability, including research into alternative aviation fuels (hydrogen and electric power) and improved energy efficiency at airports. The graphic is branded with Smith's official congressional logo and framed under the theme 'Protecting Airport Communities.'
    CategoriesLegislation, Press Release TagsAdam Smith, Airport, Alternative Fuels, Aviation Emissions, Aviation Fuel
  • 2024-05-13

    National Plan of Integrated Airport Systems (2023-2027): Appendix C — Statutory and policy definitions; data sources; and NPIAS process

    This document from the FAA's National Plan of Integrated Airport Systems (NPIAS) 2023-2027 defines the categories and roles of U.S. airports, ranging from large commercial hubs to small general aviation fields, based on criteria such as annual passenger enplanements, flight operations, and cargo weight. It outlines how airports are classified as Primary (Large, Medium, Small Hub, or Nonhub) or Nonprimary (National, Regional, Local, Basic, or Unclassified), and identifies the 3,287 airports that make up the national airport system. The document also details the data sources used by the FAA to determine each airport's classification and role within the system.
    TagsAirport, Airports, FAA, General Aviation, NPIAS
  • 2024-05-13

    National Plan of Integrated Airport Systems (2023-2027): Appendix B – National and state maps

    Appendix B of the National Plan of Integrated Airport Systems (NPIAS) 2023-2027 provides national and state maps showing the locations of all 3,287 existing NPIAS airports across the United States and its territories, including Alaska, Hawaii, Puerto Rico, Guam, and American Samoa. Airports are categorized by type — Large/Medium hub, Small/Nonhub, National/Regional, Local/Basic, and Unclassified — and displayed alongside Metropolitan and Micropolitan Statistical Areas. Note that this document covers the broader national airport system and does not contain specific noise policy information related to Sea-Tac Airport.
    TagsAirport, Airports, FAA, Map, NPIAS
  • 2024-05-13

    National Plan of Integrated Airport Systems (2021-2025): Appendix A – List of NPIAS airports with activity and development estimate

    This document is Appendix A of the FAA's National Plan of Integrated Airport Systems (NPIAS) for 2021-2025, which lists airports across the U.S. along with their ownership, category, and 5-year development cost estimates for federally eligible improvements. It defines key terms such as airport categories (Commercial Service, Reliever, and General Aviation), hub classifications based on passenger enplanements, and based aircraft counts. The data was primarily compiled in 2019 and does not reflect changes in airline activity due to the COVID-19 pandemic.
    TagsAirport, Airport Improvement Program, FAA, General Aviation, NPIAS
  • 2024-03-21

    Airport Directional Signage

    Directional signage at Amsterdam Airport Schiphol displays 'Arrivals/Aankomst,' 'Departures/Vertrek,' and 'Exit/Uitgang' in English and Dutch, consistent with Schiphol's branded yellow-and-black wayfinding system. The distinctive Schiphol air traffic control tower is visible in the background. This image does not appear relevant to Sea-Tac Airport noise-policy documentation.
    TagsAir Traffic Control, Airport
  • 2024-03-19

    Seattle-Tacoma Airport Vintage Postcard

    A color postcard view of the Seattle-Tacoma Airport terminal building, with the name 'Seattle-Tacoma Airport' visible on the facade. The foreground shows a full parking lot of 1950s-era automobiles, a '3 Hr. 25¢ Parking' sign, and a propeller aircraft flying overhead.
    CategoriesHistory Tagsaircraft, Airport, Airports
  • 2024-03-19

    Historic Airport Terminal with Vintage Aircraft

    A Northwest Airlines Boeing 377 Stratocruiser is parked on the tarmac at Seattle-Tacoma Airport, as indicated by visible signage on the terminal building. The aircraft displays Northwest's classic livery with a red tail, and ground service vehicles bearing the Northwest logo are positioned nearby.
    CategoriesHistory Tagsaircraft, Airport, Airports, Aviation Week
  • 2024-01-28

    Curved Bridge at Night with City Lights

    Aerial nighttime photograph showing an illuminated curved bridge or highway overpass spanning across dark water. The infrastructure features regular lighting along its length, with city lights visible in the background and dramatic cloudy sky overhead.
    TagsAirport

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Help study childhood asthma. Get free HEPA filter!

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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!

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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