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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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  • 2025-10-28

    Sea-Tac Airport Airport Snow Storage Expansion Diagram

    ★
    Aerial satellite map of showing two annotated snow storage areas: 'Completed Snow Storage Expansion Phase I' along the south airfield and 'Snow Storage Expansion Phase II by Lagoon 3' on the west side, with green arrows indicating access routes between locations.
    CategoriesKey Documents TagsAirport Expansion, Airport Layout Plans, Map, Port Of Seattle, SAMP, Sea-Tac AirportFolderSea-Tac Airport
  • 2014-06-15

    Airport Key Map: Sea-Tac Airport Property Zones

    ★ 32
    This Airport Key Map, published by the Port of Seattle on June 15, 2014, provides a general reference overview of property zones surrounding Seattle-Tacoma International Airport. It identifies distinct areas including the Airfield, Terminal, Commercial, South of Airfield, South of 200th, and North of Airfield zones, and distinguishes between Port of Seattle property, lease boundaries, non-Port property, land available for redevelopment, and the proposed SR 509 corridor. The aerial photo, taken in Spring 2012, is intended for general reference only and is not approved for navigation use.
    CategoriesKey Documents TagsMap, Port Of Seattle, property, Runways, SAMP, Sea-Tac Airport, seatac, SR509, Sustainable Airport Master PlanFolderSAMP
  • Dnl 2032 70
    2032-01-01

    DNL 65 Noise Contour Map — Sea-Tac Airport Area with Noise Complaint Markers

    An OpenStreetMap-based map centered on the Seattle–Tacoma (Sea-Tac) Airport area showing a highlighted corridor (shaded in orange/yellow) and a black oval outline delineating what appears to be a flight path or noise impact study zone. Clustered purple markers, likely representing noise complaint locations or monitoring stations, are visible near Burien and a southern cluster near Des Moines/Federal Way, with Sea-Tac Airport identifiable near the center of the map.
    TagsDNL65, Map, Noise Countour, Part 150, Sea-Tac AirportFolderDNL65
  • Puget sound gateway program – phase 1 of the sr 509 completion project environmental re evaluation page 343 cropped

    Puget Sound Gateway Program Phase 1 SR-509 Completion Project Environmental Re-Evaluation Map

    Map from the Puget Sound Gateway Program Phase 1 SR-509 Completion Project Environmental Re-Evaluation (page 343 cropped). Shows 2003 FEIS Alternative C2 and Phase 1 Improvements along I-5 corridor between S 272nd St and S 188th St in King County, Washington, covering Federal Way, Des Moines, SeaTac, Burien, Kent, and Tukwila. Documents interchange configurations (Full
    TagsFederal Way, King County, Map, SR509, WSDOTFolderSR-509
  • 2026-08-28

    Chapter 4 Neighborhoods Element

    Chapter 4 of the City of SeaTac's Envision SeaTac 2044 Comprehensive Plan outlines the Neighborhoods Element, which establishes goals and policies for neighborhood planning frameworks, including Neighborhood Villages, Corner Store/Mixed Use areas, and residential zones. The element addresses community design, placemaking, and 'complete neighborhood' strategies to guide how SeaTac's residential areas grow and develop through 2044. Note that this document focuses on neighborhood land use planning and is not directly related to Sea-Tac Airport noise policy.
    TagsCity Of SeaTac, community development, Comprehensive Plan, MapFolderComprehensive Plan
  • 4 neighborhoods pdf
    2026-08-28

    Chapter 4 Neighborhoods Element

    Chapter 4 of the City of SeaTac's Envision SeaTac 2044 Comprehensive Plan outlines the Neighborhoods Element, which establishes goals and policies for neighborhood planning frameworks, including Neighborhood Villages, Corner Store/Mixed Use areas, and residential zones. The element addresses community design, placemaking, and 'complete neighborhood' strategies to guide how SeaTac's residential areas grow and develop through 2044. Note that this document focuses on neighborhood land use planning and is not directly related to Sea-Tac Airport noise policy.
    TagsCity Of SeaTac, community development, Comprehensive Plan, MapFolderComprehensive Plan
  • Appendix k children8217s environmental health and safety risks socioeconomics and environmental justice NEPA final ea and SEPA page 124

    Appendix K SEPA Environmental Justice Disparities Map page 124

    Figure 5-1 from a SEPA Environmental Justice Memorandum prepared by Landrum and Brown (document no. 553-2912-002, dated April 2026) maps Washington Department of Health Environmental Health Disparities Index scores across census tracts in the Sea-Tac Airport vicinity, including Seattle, Tukwila, Burien, SeaTac, Renton, Kent, and Des Moines. The map delineates four overlapping study areas—General Study Area, Surface Transportation Study Area, Air Dispersion Study Area, and Noise Study Area (65 dB contour)—over a background showing health disparity rankings ranging from 1–5 (Low) to 10 (High), with most tracts in the project vicinity ranked 9–10.
    TagsEnvironmental Justice, Landrum & Brown, Map, NEPA, SAMP, SEPA, Sustainable Airport Master Plan, Washington State Department Of HealthFolderAppendices
  • 2026-07-14

    Sea-Tac Communities Plan: Map Supplement to Sixth Month Report — Community Trends and Characteristics, Land Use, Ground Transportation and Traffic, Aesthetic and Visual Characteristics, Natural Determinants

    This document is a map supplement to the sixth-month element report for the Sea-Tac Communities Plan, a planning study sponsored by the Port of Seattle and King County and partially funded by a federal FAA grant. It covers five key topics—community trends and characteristics, land use, ground transportation and traffic, aesthetic and visual characteristics, and natural determinants—for the communities surrounding Seattle-Tacoma International Airport. The supplement includes 1970 census tract maps of the Sea-Tac area and an errata note correcting a data classification error for Census Tract 272 related to public assistance recipients.
    TagsKing County, Map, Port Of Seattle, Sea-Tac Communities Plan, STCPFolderfinal plan
  • Planning for the airport and its environs 8216the sea tac success story8217 091977 page 9

    Second Runway Aerial Line Drawing – Planning for the airport and its environs: The Sea-Tac success story page 9

    A black-and-white site plan map labeled 'Figure 2. SEA-TAC INTERNATIONAL AIRPORT,' showing the airport's runway configuration, taxiways, terminal area, and surrounding road network. A north arrow is included in the lower left corner, orienting the map with runways running roughly east-west.
    TagsDraft, FAA, Map, Office of Environmental Quality, Peat Marwick Mitchell, Sea-Tac Communities Plan, Second RunwayFoldermaps
  • 2026-07-10

    Sea-Tac Communities Plan – Planning Maps

    The Sea-Tac Communities Plan really was a plan. Because Sea-Tac Airport was sited in a growing area, the Second Runway expansion presented huge challenges. Sea-Tac became the ‘alpha-tester’ for many FAA initiatives. The question they were trying to answer was: how can any major airport function in harmony with its surroundings? One idea, which the
    TagsLand Use, Map, Sea-Tac Communities Plan

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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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