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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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  • 2020-05-25

    Community health impacts of airports

    This presentation by Kim Serry, a University of Washington public health graduate student, reviews research on the community health impacts of airports, covering pollutants, health effects, and which populations are most affected. The session, produced in partnership with Public Health Seattle King County and the UW Center for Health Innovation and Policy Science, also examines local conditions relevant to the Sea-Tac area. The 30-35 minute recorded presentation concludes with an open question-and-answer period.
    TagsHealth, King County, Presentation, University Of WashingtonFolderHealth
  • 2020-04-07

    Regional Aviation Baseline Study: Technical Workshop #3 Presentation

    This document presents Technical Workshop #3 of the Regional Aviation Baseline Study, held on April 7, 2020 via BlueJeans video conferencing. The workshop covered study status updates, development and evaluation of aviation scenarios (including current planned development and options to accommodate 50–100% of future demand gaps), and airport evaluation criteria. Participants reviewed potential supplemental airports and discussed next steps for the regional aviation planning process.
    TagsPresentation, PSRC, Puget Sound Regional Council, Regional Aviation Baseline StudyFolderRegional Aviation Baseline Study
  • 2020-02-25

    Failed windows

    A presentation slide titled 'Failed Windows' states that Alpine Windows installed in the 1990s had a higher than average failure rate, that Alpine went bankrupt in 2000 and stopped honoring warranties, and that approximately 5,000 homes received Alpine window products. The slide also notes that other products from the late 1980s and early 1990s may be failing due to end-of-lifespan issues, and that state legislation is being proposed to allow replacement of failed products.
    CategoriesMeetings TagsAccelerated Sound Insulation Program, Noise Mitigation, Port Of Seattle Commission, Port Packages, Presentation, Washington State Legislature, WindowsFolderNoise Mitigation
  • 2019-07-23

    Aviation Capital Planning & Preliminary Design Action Item: July 23, 2019

    A July 23, 2019 Port of Seattle briefing document outlines the aviation capital planning and preliminary design process for Sea-Tac Airport, covering three phases: completed master planning, advanced planning still in progress, and preliminary design requiring capital funds approval. Key topics include near-term projects, projects requiring preliminary design authorization, and the relocation of a Glideslope Antenna. The preliminary design phase aims to develop individual project programs in sufficient detail to produce a Project Definition Document (PDD) and transition projects into full design.
    Tagscapital improvements, Glide Slope, Port Of Seattle, Presentation, SAMP, Sea-Tac Airport, StART, Sustainable Airport Master PlanFolderMeetings
  • 2018-12-11

    Capital improvement projects third quarter report 2018

    The Port of Seattle's Capital Improvement Projects Third Quarter Report for 2018 provides a status update on 100 active capital projects managed by the Construction and Development Division (CDD) and Information and Communications Technology (ICT) department. Of those projects, 47 were on or ahead of schedule and budget, while 53 faced schedule or budget challenges, including 13 new reportable variances identified during the quarter. The report tracks project performance trends across multiple quarters, noting two new projects moved to critical (red) status and ten additional projects raised concerns (amber) in Q3 2018.
    Tagscapital improvements, Port Of Seattle, Port Of Seattle Commission, PresentationFolderMeetings
  • 2018-11-27

    Sea-Tac International Airport NorthSTAR Program: Third quarter 2018 program and North Satellite project update

    This document is a Third Quarter 2018 progress update on the NorthSTAR Program and North Satellite Modernization project at Seattle-Tacoma International Airport, presented to the Port of Seattle Commission on November 27, 2018. The project expands the North Satellite terminal from 12 to 20 contact gate positions, growing the facility from 263,000 to 428,000 square feet, and includes upgrades to infrastructure, seismic reinforcement, marketplace concessions, technology, and airline services. The update covers budget status, schedule, challenges, accomplishments, and sustainability initiatives as of Q3 2018.
    TagsConstruction, North Satellite, Port Of Seattle, Presentation, Sea-Tac AirportFolderMeetings
  • 2018-11-13

    Draft 2019 state legislative agenda: Briefing to Port Of Seattle Commission

    In November 2018, the Port of Seattle presented its Draft 2019 State Legislative Agenda to the Port Commission, outlining key priorities including workforce development in maritime and industrial sectors, transportation access improvements to Sea-Tac Airport via State Route 518 and the Puget Sound Gateway program, and support for a Clean Fuels Standard to reduce emissions from port operations. The agenda was developed through consultation with internal subject matter experts and individual commissioners, with a focus on reducing emissions, growing jobs, and increasing opportunities. Final adoption of the agenda was scheduled for the Commission's November 27, 2018 meeting.
    Tagslegislative priorities, Port Of Seattle, Port Of Seattle Commission, Presentation, Sea-Tac AirportFolderMeetings
  • 2018-11-13

    Port Of Seattle Draft Finance Plan 2019–2023 — Additional Information Section Divider (Slide 26), November 2018

    This is slide 26 from a Port of Seattle presentation, serving as a section divider titled 'Additional Information.' The slide features the official Port of Seattle logo and the organization's branded color scheme of light blue, dark teal, and green.
    TagsBudget, Port Of Seattle, Presentation, Property Tax Levy, Tax LevyFolderBudget & Tax Levy 2019
  • 2018-08-02

    Federal Way Mayor’s Quiet and Healthy Skies Task Force Report

    The Federal Way Mayor's Quiet and Healthy Skies Task Force Report (August 2018) examines the noise and health impacts of Seattle-Tacoma International Airport's Third Runway on Federal Way neighborhoods. It presents runway usage statistics from 2007–2017 showing a dramatic rise in flight operations, and references a 1997 impact mitigation study that identified over $148 million in recommended sound insulation and avigation easements for Federal Way communities affected by overflight noise.
    TagsFederal Way, Glide Slope, Noise Mitigation, Port Of Seattle, Presentation, Sea-Tac Airport, Third RunwayFolderFederal Way
  • 2018-04-10

    Port projects in the Duwamish

    This April 2018 Port of Seattle presentation outlines port and habitat recovery projects along the Lower Duwamish Waterway in Seattle, covering terminals 105, 107, 108, and 117, as well as Turning Basin #3 and the Lower Duwamish Waterway Superfund Site. The document highlights environmental restoration efforts, including shoreline and aquatic habitat improvements near Georgetown and South Park neighborhoods. Terminal 108 is featured as an example of habitat recovery work, showing before-and-after conditions of riparian restoration along the waterway.
    TagsDuwamish River, Port Of Seattle, Presentation, Salmon, SuperfundFolderMeetings

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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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