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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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  • 2021-08-10

    Green Burien Partnership urban forest stewardship plan

    The Green Burien Partnership Urban Forest Stewardship Plan outlines a collaborative initiative between the Port of Seattle, the City of Burien, and conservation organization Forterra to assess and improve urban forests in Burien, a community affected by Seattle-Tacoma International Airport operations. Funded through the Port's Airport Community Ecology (ACE) Fund, the program recognizes that neighborhoods bearing the brunt of airport noise and impacts deserve tangible environmental benefits in return. Burien joins a 15-city Green Cities Network across King, Pierce, and Snohomish counties, collectively working to restore more than 13,000 acres of land for over 3 million residents.
    TagsCity of Burien, Environment, Forterra, Green Cities Partnership, TreesFolderEnvironment
  • 2021-07-19

    Flight Corridor Safety Program On-line Open House

    The Port of Seattle has an ongoing program to remove trees around SEA to improve safety during takeoffs and landings and replant in their place, native, low-growing trees. The first phase of work, completed in 2019, centered around removing and replanting trees on Port property. During this phase, the Port established low-growing native forests onsite
    CategoriesFrom The Web, Resources TagsACE Fund, Airport Community Ecology Fund, Port Of Seattle, South King County Fund, Trees
  • 2021-04-13

    ACE Green Cities update

    The ACE Green Cities Update, presented on April 13, 2021, provides an overview of the Airport Community Ecology (ACE) Fund, a $1 million initiative established in 2016 to support environmental programs in the communities of Burien, Des Moines, and SeaTac that are impacted by Sea-Tac Airport. The program, managed in partnership with Forterra, funds small matching grants and Green City Programs aimed at improving local ecology and green spaces. The presentation covers program accomplishments, partnership values, the 2021 work plan, and strategies for sustaining resources going forward.
    TagsACE Fund, Forterra, Green Cities Partnership, ship, TreesFolderMeetings
  • 2021-03-26

    Green Des Moines Partnership – Urban Forest Enhancement Plan cover

    Cover page of the Green Des Moines Partnership Urban Forest Enhancement Plan, featuring a volunteer planting a small tree or shrub near a large tree trunk, with an orange bucket visible in the foreground. The Green Des Moines Partnership logo appears in the lower right corner.
    TagsCity Of Des Moines, Des Moines, Grants, Green Cities Partnership, TreesFolderGrant Programs
  • 2021-01-01

    2021 Tree PAC Port Of Seattle Commissioner Questionnaire: Toshiko Hasegawa

    This 2021 Tree PAC questionnaire captures Port of Seattle Commissioner candidate responses on environmental justice, tree canopy, and pollution issues affecting South Seattle and South King County communities. The candidate, a fourth-generation Japanese American raised in Beacon Hill, advocates for cleaning up the Duwamish River, preserving North SeaTac Park from development, and expanding urban tree canopy in historically redlined neighborhoods. Key proposals include partnering with cities and King County to strengthen tree protection ordinances, requiring environmental justice evaluations before Port projects, and empowering Indigenous tribes as land stewards.
    TagsEnvironmental Justice, North Sea-Tac Park, Port Of Seattle Commission, Toshiko Hasegawa, TreesFolderPolitics
  • 2020-03-24

    Resolution No. 3771: Flight Corridor Safety Program 2019 property interests

    The Port of Seattle Commission adopted Resolution No. 3771 in March 2020 to authorize the acquisition of property easements and access rights around Seattle-Tacoma International Airport as part of the 2019 Flight Corridor Safety Program. The program aims to remove trees and other obstructions that interfere with aircraft landing and takeoff corridors, in compliance with FAA requirements and state law. The Port is directed to first pursue voluntary negotiations with affected property owners, but is authorized to use eminent domain condemnation proceedings if those negotiations fail.
    TagsAirport Development Fund, Flight Corridor Safety Program, Port Of Seattle Commission, Sea-Tac Airport, TreesFolderResolutions
  • 2020-02-25

    Flight Corridor Safety Program 2019 real property – Introduction of Resolution 3771

    The Port of Seattle Commission is introducing Resolution 3771 to support the Flight Corridor Safety Program 2019, which involves removing trees near Seattle-Tacoma International Airport that obstruct FAA-designated flight approach and departure paths. The program seeks to acquire permanent easements on private properties to prevent future obstructions and ensure ongoing compliance with FAA regulations and the airport's operating certificate. If voluntary negotiations with property owners fail, the Port is authorized to pursue condemnation as a last resort to secure the necessary property rights.
    TagsFAA, Flight Corridor Safety Program, Port Of Seattle Commission, Sea-Tac Airport, TreesFolderResolutions
  • 2019-10-14

    Seattle-Tacoma International Airport Flight Corridor Safety Program Implementation Plan

    This October 2019 draft Implementation Plan, prepared by Anchor QEA for the Port of Seattle, outlines a program to identify and remove trees and other obstructions from the flight corridors around Seattle-Tacoma International Airport. The plan covers properties owned by the Port, public agencies (including WSDOT and the cities of SeaTac and Des Moines), and private landowners in Burien and SeaTac, detailing removal schedules, revegetation strategies, and best management practices. Its primary goal is to improve aviation safety by ensuring that vegetation and structures do not encroach on protected airspace around the airport.
    TagsAnchor QEA, FCSP, Flight Corridor Safety Program, Port Of Seattle, TreesFolderFlight Corridor Safety Program
  • 2019-08-19

    A Day in the Life of an Environmental Intern

    Ever wondered what happens during an internship at the Port of Seattle? Sophia Cassam, an intern at Sea-Tac Airport, shares her experience working for the Port’s Environmental team. (Sponsored Post) *** Hello! I’m Sophia, the Port of Seattle Environmental Intern at Sea-Tac Airport. I study Urban Planning at the University of Washington, where I focus
    CategoriesFrom The Web TagsMercer Island Reporter, Port Of Seattle, Trees
  • 2019-01-26

    Fred Felleman, Tree Planting

    Three people pose together outdoors in a wooded setting during what appears to be a fall or winter event. Visible branding includes an Arc'teryx vest on the center figure and a North Face beanie on the left figure; the left figure also wears a lanyard with a badge.
    TagsActivism, Fred Felleman, Port Of Seattle Commission, TreesFolderCommission

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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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