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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 Three Parallel Runway Diagram

    Aerial diagram of Seattle-Tacoma International Airport (Sea-Tac) showing three parallel runway pairs labeled 16L/34R, 16C/34C, and 16R/34L, with runway lengths annotated: 11,901', 9,426', and 8,500' respectively. A compass rose is visible in the upper right corner.
    TagsAirport Layout Plans, Map, Runways, Sea-Tac AirportFolderRunways
  • 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
  • Washington State Department of Ecology – Air Quality Index Map, Seattle/Sea-Tac Region

    Screenshot of Washington's Air Monitoring Network interactive map (Air Quality Program, WDOE, version 2.73.4.19) showing PM2.5 Air Quality Index readings across the greater Seattle–Sea-Tac–Puget Sound area. All visible monitoring stations display green indicators (Good, AQI 0–50).
    TagsAir Quality Monitors, Ecology, Health, Map, PM25FolderHealth
  • Sea Tac Communities Plan 1600

    A land use planning map produced under the Sea-Tac Communities Plan, sponsored by the Port of Seattle and King County, showing zoning categories (residential, commercial, office, airport facility, open space, etc.) for the area surrounding Seattle-Tacoma International Airport. The legend identifies uses including air terminal/related business, highway-oriented business, community retail, industry, and key circulation features, with a scale bar indicating coverage at 1:500 to 6,000 feet.
    TagsKing County, Land Use, Map, Sea-Tac Airport, Sea-Tac Communities PlanFolderart
  • 2022-07-31

    Port of Seattle proposed Mitigation bank service area map

    A map showing the mitigation bank service area within WRIA 9 (Water Resource Inventory Area 9), encompassing three subwatersheds: the Lower Green River Subwatershed, the Duwamish Estuary Subwatershed, and the Nearshore Subwatershed. The map displays the Green-Duwamish River and its associated streams in the greater Seattle/King County area of Washington State. An inset map shows
    TagsAuburn Wetland, Duwamish River, Environment, King County, Map, State of WashingtonFolderAuburn Wetland
  • 2022-07-31

    Mitigation bank project sites map

    A map showing potential mitigation sites and existing Port of Seattle habitat sites in the greater Seattle area, including Terminal 25, Terminal 117, and the Auburn Site. The map covers cities including Seattle, Burien, Tukwila, SeaTac, Des Moines, Federal Way, Kent, Renton, and Auburn. Sites are categorized by land use type including storage, vacant, and
    TagsAuburn Wetland, Environmental Impact Statement, Map, Port Of Seattle, Sea-Tac AirportFolderAuburn Wetland
  • Sea-Tac Community Plan Land Use Sideways

    A color-coded GIS-style map overlay showing noise contour zones or land-use impact areas surrounding what appears to be a major airport runway complex at center. Colors ranging from light yellow to deep red and dark olive likely represent varying levels of noise exposure or compatible/incompatible land uses, with road networks shown in black and red lines.
    TagsLand Use, Map, Noise Countour, Sea-Tac Airport, Sea-Tac Communities PlanFolderart
  • SCP_sideways

    A color-coded planning map showing noise contour zones or land-use impact areas radiating from a central airport runway facility, depicted in shades of yellow, red, brown, and dark olive-green. Blue lines appear to represent waterways or transportation corridors, and bold black lines indicate road or grid infrastructure overlaid on a topographic base map.
    TagsLand Use, Map, Noise Countour, Sea-Tac Airport, Sea-Tac Communities PlanFolderart
  • 2022-07-28

    Zoning: City of SeaTac

    This zoning map from the City of SeaTac (prepared July 28, 2022) shows land-use classifications throughout the city, which borders Seattle-Tacoma International Airport. The map identifies a range of residential, commercial, industrial, and aviation-related zones — including Aviation Commercial (AVC) and Aviation Operations (AVO) designations — that reflect the airport's significant influence on surrounding land use and development policy. Special overlay districts, light rail corridors, and station area boundaries are also depicted, highlighting the city's efforts to manage growth and compatibility with airport noise and operations.
    TagsCity Of SeaTac, Land Use, Map, Sea-Tac AirportFolderSeaTac
  • Sea Tac Communities Plan 6.7 Land Use Plan 1600 661×1024

    A color-coded land use planning map produced by the Port of Seattle and King County as part of the Sea-Tac Communities Plan, showing zoning categories (residential, commercial, office, airport facility, open space, and circulation features) in the airport vicinity. The legend identifies uses including single-family residential, high-density residential, highway-oriented retail, air terminal/related business, community facility, open body/stream, major transportation facility, and key circulation features.
    TagsKing County, Land Use, Map, Port Of Seattle, Sea-Tac Communities PlanFolderart

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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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