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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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  • 2023-08-08

    Auburn Wetlands site concept design

    This map presents the concept design for the Auburn wetland mitigation site as part of the Port of Seattle’s Wetland Mitigation and Habitat Conservation Umbrella Bank Prospectus. The figure shows five delineated wetlands (A through E) along the Green-Duwamish River, with proposed enhancements including wetland re-establishment, buffer enhancement, upland enhancement, and re-routed ditches. The site
    TagsAuburn Wetland, Duwamish River, King County, Map, Port Of Seattle, Third RunwayFolderAuburn Wetland
  • ERMA Sea-Tac Salmon Streams

    A screenshot from NOAA's Environmental Response Management Application (ERMA) Pacific Northwest interface, showing a Google-based map centered on the Seattle-Tacoma International Airport (SeaTac) area at zoom level 12, scale 1:108K, at coordinates 47.44792°N, 122.36141°W. Surrounding communities visible include Burien, Tukwila, Renton, Normandy Park, and Des Moines, with overlaid environmental or response-related boundary layers in multiple colors.
    TagsEnvironment, ERMA, Map, Salmon, Sea-Tac AirportFolderSea-Tac Airport
  • 2023-07-16

    King County GIS Parcel Map: Property Ownership Near Des Moines Creek Park and Sea-Tac Airport Noise Zone

    A street map showing the Des Moines and SeaTac area of Washington State, with two parcels highlighted in yellow/orange near Des Moines Creek Park and along 18th Ave S between approximately S 201st St and S 208th St. The map shows International Blvd (SR-99) and Interstate 5 to the east, in an area relevant to Sea-Tac Airport noise impact zones.
    TagsDes Moines, King County, Map, Property Rights, Sea-Tac AirportFolderProperties
  • 2018 Department of Transportation Noise Map near Sea-Tac Airport

    A Bureau of Transportation Statistics (BTS) interactive noise map displaying 24-hour average sound levels (dBA, LAeq) around Seattle-Tacoma International Airport (SEA) for years 2016 and 2018, shown in aviation mode. The map reveals noise contours ranging from 45 dBA (yellow) to over 90 dBA (dark blue/purple), with the highest noise levels concentrated directly along the flight path corridor through communities including Burien, SeaTac, Highline, Sunnydale, and Normandy Park.
    TagsDepartment Of Transportation, Map, NoiseFolderNoise
  • 2023-05-23

    Boston Logan International Airport Noise or Flight Path Boundary Map

    A Google Maps screenshot showing a blue polygon boundary drawn around Boston Logan International Airport (BOS) in East Boston, Massachusetts, extending over Boston Harbor toward Winthrop and Deer Island. The map includes visible labels for Boston Logan International Airport, surrounding neighborhoods, and landmarks such as Castle Island and Deer Island Light.
    TagsBoston/Logan Airport, Map, MassPort, Noise BoundaryFolderBoston/Logan
  • 1994 King County Council Districts

    A 1994 map from the King County Department of Records showing the 13 Metropolitan King County Council Districts, held by the Seattle Public Library (call number SEAMAP G4283.K3 F7 1994 .K5). The legend lists all 13 councilmembers by district, including representatives for districts covering the Sea-Tac area: District 7 (Pete von Reichbauer), District 13 (Christopher Vance), and District 5 (Ron Sims).
    TagsKing County, King County Council, MapFolderKing County
  • 1981 King County Council Districts

    A 1981 King County, Washington official map showing nine County Council Districts with council member names and phone numbers listed (Tracy J. Owen through Gary Grant, Districts 1–9). The map was catalogued by the Seattle Public Library under History/State Doc and includes the King County Courthouse address in Seattle, WA 98104.
    TagsKing County, King County Council, MapFolderKing County
  • 2023-04-24

    Parcel 30 – Exhibit B: Port Of Seattle comprehensive scheme, Resolution No. 2516 amending Unit No. 18

    This document is Exhibit 'B' to Port of Seattle Resolution No. 2516, which amends Unit No. 18 of the Port of Seattle's Comprehensive Scheme for Seattle-Tacoma International Airport. It contains maps (Work Order No. G-2032, drawing STIA-7318-C-1) identifying Parcel 30 and Parcel 31 — areas of land proposed for acquisition by the Port of Seattle adjacent to the existing airport property, including neighborhoods near Sunset Park and Des Moines. The maps delineate existing Port-owned land from the proposed acquisition parcels, indicating planned airport expansion or noise-buffer land purchases in the surrounding residential area.
    TagsLand Use, MapFolderProperties
  • 2023-04-24

    Commercial flights across the world 04/24/2023

    A screenshot from Flightradar24 (flightradar24.com), a live flight tracking service, showing global air traffic with yellow aircraft icons distributed across a world map. The highest concentrations of flights are visible over the continental United States, Europe, and East Asia.
    Tagsaircraft, Airline Industry, Commercial Aviation, FlightRadar24, MapFolderAviation
  • Sea-Tac Airport Map Showing Cargo Facilities, Fire Station, and PFAS Firefighting Foam Training Areas

    An infographic by Mark Nowlin published in The Seattle Times, sourced from Esri, showing a map of Seattle-Tacoma International Airport (Sea-Tac) and its cargo facilities, fire station, terminals, and Link Light Rail corridor. The graphic explains that from the early 1980s through most of the 1990s, crash-response crews trained at the airport using PFAS firefighting foams.
    TagsFire fighting, Map, PFAS, Sea-Tac Airport, Seattle TimesFolderFire - PFAS

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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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