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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 Layout Plans(23)

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  • Noise Contour Map Trim

    Aircraft Noise Contour Mapping

    A diagram illustrating airport noise contours around a runway, with color-coded flight paths showing arrivals (red) and departures (green). The oval-shaped noise contour lines extend along both ends of the runway centerline, with greater extent on the departure end.
    TagsAirport Layout Plans, Noise Boundary
  • 2026-01-06

    Airport land use compatibility: Incompatible and compatible land uses and types of appropriate action

    This document outlines federal guidelines for managing land use around airports to minimize noise and safety conflicts. It distinguishes between incompatible land uses near airports—such as residential development, schools, hospitals, and churches—and compatible ones like agriculture, parks, and parking facilities. It also describes appropriate actions airport sponsors can take, including developing off-airport land use plans, enacting zoning ordinances, and working with local and regional authorities to restrict development in affected areas.
    TagsAirport, Airport Law, Airport Layout Plans, FAA
  • Airport Environs Planning Study – Area Delineation and Compatibility Analysis

    Document discussing the delineation of airport environs and identification of impact areas for planning purposes. Covers the overall study area including Highline School District and portions of Federal Way and South Central School Districts, with focus on airport vicinity planning and implementation.
    TagsAirport, Airport Layout Plans, Federal Way
  • 2024-10-23

    King County International Airport/Boeing Field Vision 2045 – Goals and Objectives

    A planning document outlining the goals and objectives for King County International Airport/Boeing Field’s Vision 2045 plan. The document establishes seven key goals including safety, efficiency, environmental stewardship, fiscal sustainability, land management, communication, and resilience, with detailed considerations for both airport operations and community impacts.
    TagsAirport, Airport Layout Plans, King County
  • 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
  • 2023-08-22

    Seattle-Tacoma International Airport map

    This document is an airport diagram of Seattle-Tacoma International Airport showing runways, taxiways, run-up areas, and terminal facilities. Handwritten annotations in red ink reference noise abatement procedures, including a note about 'General Aviation' operations and restrictions on runways, specifying limits such as '650 landings' and directions (East/West). Additional handwritten notes at the bottom outline runway use prohibitions from 10 PM to 6 AM, with exceptions for 50% power run-ups and full-power checks limited to 2 minutes.
    TagsAirport Layout Plans, General Aviation, Map, Runways, Sea-Tac Airport
  • 2022-10-17

    Comments on the draft FAA policy regarding processing land use changes on federally acquired or federally conveyed airport land

    The Huntsville-Madison County Airport Authority submitted comments to the FAA in October 2022, objecting to a proposed federal policy governing land use changes on federally acquired or conveyed airport property. The authority argues the policy creates unnecessary regulatory burdens that hamper airports' ability to pursue compatible non-aeronautical developments, and calls for clearer, simpler rules — such as broader definitions of 'airport purpose' and airport-led category determinations rather than FAA approval for every land use change.
    TagsAirport, Airport Layout Plans, FAA, Land Use, letter
  • 2022-10-17

    Comments on Docket Number FAA 2022-1203: Draft Policy regarding processing land use changes on federally acquired or federally conveyed airport land

    Charlotte Douglas International Airport (CLT) submitted comments to the FAA in October 2022 opposing a proposed new policy on land use changes at federally acquired airport land, arguing that existing regulations already adequately govern non-aeronautical land use. CLT requested that if the policy moves forward, the FAA clarify approval timelines, lease evaluation procedures, and criteria for mixed-use land decisions. The letter emphasizes that non-aeronautical development is essential for airports to remain financially self-sustaining and to ensure compatible land use around airport property.
    TagsAirport Layout Plans, Charlotte Douglas International Airport, FAA, Land Use, letter
  • Section 163

    Section 163 of the FAA Reauthorization Act of 2018 regulates the uses of properties acquired by airport sponsors using FAA funds. These include property buyouts for noise mitigation and other non-aeronautical uses. SEC. 163. LIMITED REGULATION OF NON-FEDERALLY SPONSORED PROPERTY. (a) <> In General.--Except as provided in subsection (b), the Secretary of Transportation may not
    CategoriesLegislation TagsAirport Layout Plans, ALP, FAA, Land Use, Reauthorization Act Of 2018, Section 163
  • 2022-09-12

    Snohomish County Airport/Paine Field master plan update

    This document is the Master Plan Update for Snohomish County Airport/Paine Field, covering a comprehensive range of planning topics including existing airport conditions, aviation activity forecasts, capacity analysis, facility requirements, and a long-term development program. It outlines airfield and landside infrastructure needs, environmental considerations, and financial planning strategies for the airport's future growth. Note that this plan pertains to Paine Field in Snohomish County and does not directly address noise policy at Seattle-Tacoma International Airport.
    TagsAirport Layout Plans, Forecast, General Aviation, Master Plan, Paine Field, RCAA

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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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