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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.

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  • Sea-Tac Airport Aerial View, circa 1970s

    Aerial photograph showing a large airport terminal with a curved concourse design, a multi-story parking garage with a circular ramp system, and numerous aircraft at gates. The image appears to date from the 1970s based on aircraft types, vehicle styles, and construction era of the facilities visible, consistent with Sea-Tac Airport's terminal expansion period.
    TagsAirport Expansion, History, Runways, Sea-Tac AirportFolderRunways
  • Aerial View of Sea-Tac Airport Runways and Adjacent Residential Neighborhood

    Black-and-white aerial photograph showing a mid-20th century airport with multiple runways and taxiways in the background, and a residential neighborhood with a large oval water reservoir or sports track and modernist institutional buildings in the foreground. No visible text, captions, or watermarks are present in the image.
    TagsHistory, Runways, Sea-Tac AirportFolderRunways
  • STIA historical south east aerial

    Aerial photograph looking north toward Sea-Tac Airport showing terminal buildings, aircraft at gates, and a Western Airlines facility (visible signage on left). The foreground shows the International Boulevard/Pacific Highway South commercial corridor with motels, parking lots, and retail businesses adjacent to the airport.
    Tagsaircraft, History, Runways, Sea-Tac AirportFolderRunways
  • SEA-TAC Aerial w cargo 1981

    Aerial photograph looking northward over Sea-Tac Airport showing the main terminal complex, satellite concourses, apron areas, runways, and Puget Sound visible in the background. A large surface parking lot, access roads, and adjacent commercial/hotel buildings are visible in the foreground; vehicle styles and airport layout suggest the photograph dates from the early-to-mid 1970s.
    TagsCargo, History, Runways, Sea-Tac AirportFolderRunways
  • 2022-08-27

    Greater Highline Community Parks Board: Purpose, Plan for Park Development, and History of North Sea-Tac Park

    The Greater Highline Community Parks Board was organized in early 1981 to represent the local community in developing the North Sea-Tac Park, a project arising from the Port of Seattle's acquisition of land severely impacted by airplane noise from Sea-Tac Airport. The development plan included steps such as securing a master lease with the Port of Seattle, organizing sports and recreation programs, cleaning up and improving the site, and potentially taking over Sunset School for community use. Key milestones between 1980 and 1981 included a $30,000 master plan study, approvals from both the Port of Seattle Commission and King County, and a bid by the Parks Board on all Sunset School buildings contingent on obtaining the master lease.
    TagsGreater Highline Community Parks Board, History, King County, North Sea-Tac Park, Port Of SeattleFolderGHCPB
  • Airport Runway Layout Diagram (For Illustration Purposes Only) — Terminal, Tower, Customs, and Mid-Field Cargo Complex

    This is an airport diagram showing multiple runways including one labeled 10502 x 199 feet and another 9500 x 150 feet, with facilities marked including a Main Terminal, U.S. Customs, Tower, Mid-Field Cargo Complex, and General Aviation Parking. Runway end identifiers visible include 10, 28, 15R, 33L, 33R, and 75L, consistent with a large international airport layout, though no airport name or ICAO/IATA code is explicitly shown.
    TagsAirport Layout Plans, History, Map, Runways, Sea-Tac AirportFolderRunways
  • 2022-08-07

    Port Package Problems Example: Rotted Wood Framing At Building Base

    Close-up photograph of Port Package problem 0812: Severely deteriorated and rotted wood framing or sill plate at the base of a structure. The wood exhibits extensive decay with fragmented, crumbling pieces scattered around the affected area. PVC pipe and painted wood trim elements are also visible in the image.
    TagsConstruction, History, Port Packages, Sea-Tac Airport, soil, Sound InsulationFolderPort Packages
  • 2022-07-10

    Sea-Tac Communities Plan: Chapter 3.1 Background

    This document provides historical background on Seattle-Tacoma (Sea-Tac) Airport, tracing its origins to 1942 when the Civil Aeronautics Administration selected a site near Bow Lake and the Port of Seattle acquired the original 906 acres. As the jet age arrived and the airline industry expanded, the surrounding communities experienced rapid urbanization, bringing with it land use conflicts, traffic problems, pollution, and shortsighted commercial development. The Sea-Tac Communities Plan background chapter examines these challenges as context for developing more thoughtful, long-term planning policies for the airport region.
    TagsBow Lake, History, Port Of Seattle, Sea-Tac Communities Plan, STCPFolderfinal plan
  • 2020-05-29

    Stantec Sea-Tac Airport Communities Impact Study: Section 2 – Background (Appendix A, pp. 9–11)

    This background section traces the history of Seattle-Tacoma International Airport from its origins as a World War II military airfield to its current status as the eighth busiest U.S. airport, handling 51.8 million passengers in 2019. It covers key milestones including the airport's 1949 opening for commercial service, the controversial addition of a third runway in 2008, and the surrounding communities that have been affected by the airport's growth. The document also outlines the Port of Seattle's future expansion plans under its Sustainable Airport Master Plan, which aims to accommodate nearly 500,000 operations and 56 million passengers annually by 2027.
    TagsDepartment Of Commerce, History, SAMP, Sea-Tac Airport, StantecFolderStantec
  • Why Airports Die

    The distinctive design of the Pan-Am Worldport at JFK International Airport, built in 1960, wasn’t enough to save it from the wrecking ball. Dmitri Kessel/The LIFE Picture Collection via Getty Images Anthony Paletta 12:07 PM ET Expensive to build, hard to adapt to other uses, and now facing massive pandemic-related challenges, airport terminals often live
    CategoriesFrom The Web TagsAirports, Citylab, History

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Upcoming Events

  • Stay Grounded Event: Night trains, not night planes!
    Add to CalendarMSunday Sep 13: 12:00am
    Ntnnp social media3

    For the past two years, more than 220 initiatives from 15 countries have declared September 13th as the International day for the ban of night flights at airports. In parallel, activists across Europe have been gathering for pyjama parties for night trains – coordinated in 2024 and 2025 by Back on Track and Stay Grounded.

    [...]
  • Burien Airport Committee Meeting September 15, 2026
    Add to CalendarMTuesday Sep 15: 6:00pm
    400 SW 152nd St, Burien, WA 98166
    Burien airport committee 15 sep 2026 agenda pdf pdf

    a) Part 150 Noise Study (Emily Inlow-Hood) — 15 minutes
    b) SAMP Update and Next Steps (Brian Davis and Sarah Moore) — 15 minutes
    c) Legislative Updates — 10 minutes
       • SCA (Sarah Moore)
       • Work with Sen. Orwall (Brian Davis)
    d) StART Reorganization (Jeff Harbaugh and Karen Veloria) — 10 minutes

    [...]

[See all...]


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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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    "Exhibit 141: Order Granting Motion to Stay the Effectiveness of Section 401 Certification — ACC v. Ecology and Port Of Seattle (PCHB 01-160)" — , 2001

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