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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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  • 2021-01-27

    Highline Forum agenda: 2021 legislative agendas, operational items, and StART update

    The Highline Forum held a virtual meeting on January 27, 2021 via MS Teams to discuss 2021 state legislative agendas, forum operational issues including Community Co-Chair selection, and a StART (Sea-Tac Airport Roundtable) update presented by Port of Seattle Aviation Director Lance Lyttle. Due to the Governor's Stay at Home Order, public comments were accepted by email or via MS Teams link. The forum was scheduled to meet six times throughout 2021, with the next meeting set for March 24, 2021, focused on the 2020 StART Annual Report.
    TagsHighline Forum, Lance Lyttle, Port Of Seattle, StART, state legislatureFolderHighline Forum 2021
  • 2021-01-22

    Lora Lake Apartments site construction as-built report

    This January 2021 report documents the as-built construction details of the Lora Lake Apartments Site, a project managed by the Port of Seattle's Aviation Environmental Programs at Seattle-Tacoma International Airport. Prepared by engineering firm Floyd|Snider, it captures the completed state of construction work at the site, which is located near the airport and subject to aviation noise considerations. The report was prepared under the supervision of licensed Professional Engineer Megan King and is intended for use by the Port of Seattle and relevant regulatory agencies.
    TagsConstruction, Environment, Lora Lake, Port Of Seattle, Sea-Tac AirportFolderSea-Tac Airport
  • 2021-01-01

    Wetland mitigation and habitat conservation umbrella bank prospectus

    This prospectus, prepared by the Port of Seattle and Anchor QEA, outlines a wetland mitigation and habitat conservation umbrella bank program. It describes proposed initial and future mitigation sites including Terminal 25, Terminal 117, and an Auburn site, along with the proposed service area and site protection measures. The document provides conceptual designs, existing conditions
    TagsAnchor QEA, Auburn Wetland, Environment, Port Of SeattleFolderAuburn Wetland
  • 2021-01-01

    SEA Stakeholder Advisory Round Table 2021 update

    The SEA Stakeholder Advisory Round Table (StART) is a forum established by the Port of Seattle in early 2018 to facilitate information sharing between the airport and surrounding communities on issues related to Seattle-Tacoma International Airport. Developed in consultation with Highline Forum member cities, StART also involves Alaska Airlines, Delta Air Lines, and the FAA. This 2021 update, presented by Port of Seattle staff, recaps the group's meetings and ongoing efforts to address airport community concerns.
    Tagscommunity engagement, Highline Forum, Port Of Seattle, Sea-Tac Airport, StARTFolderHighline Forum 2021
  • 2021-01-01

    2021 preliminary budget

    The Port of Seattle's 2021 Preliminary Budget document was prepared by the Finance and Budget Departments and covers the organization's financial plans for the coming year. The Port previously received a Government Finance Officers Association (GFOA) Distinguished Budget Presentation Award for its 2020 Annual Budget, recognizing it as an effective policy document, financial plan, operations guide, and communications tool. Note: this document does not appear to contain specific Sea-Tac Airport noise policy content.
    TagsBudget, CAFR, Port Of SeattleFolderFinance
  • 2020-12-31

    Annual financial report: As of December 31, 2020 and 2019, and for the years ended December 31, 2020, 2019, and 2018

    The Port of Seattle's 2020 Annual Financial Report covers the financial position and activity of the Port as of December 31, 2020 and 2019, and for the fiscal years ending 2020, 2019, and 2018. Prepared by the Port's Accounting and Financial Reporting Department, the report includes audited financial statements, management's discussion and analysis, pension fund information, and ten-year statistical trends. It provides a comprehensive overview of the Port's enterprise operations, which include Seattle-Tacoma International Airport and maritime facilities.
    TagsCAFR, Port Of Seattle, State of WashingtonFolderFinance
  • 2020-12-21

    Airfield Simulation Modeling History and Summary: Sustainable Airport Master Plan, Seattle-Tacoma International Airport

    LeighFisher memorandum summarizing airfield simulation modeling conducted for the Port Of Seattle Sustainable Airport Master Plan (SAMP) and follow-on NEPA review at Sea-Tac Airport. Covers TAAM (Total Airport and Airspace Modeller) model development from 2015 through mid-2017, including initial calibration to 2014 activity, FAA-requested recalibration to 2016 activity, maximum sustainable throughput experiments, and revised future-year
    TagsFAA, Leigh-Fisher, Port Of Seattle, SAMP, Sea-Tac Airport, Sustainable Airport Master PlanFolder2024 Draft EA
  • Sea airfield simulation summary memo 2020 12 21 pdf
    2020-12-21

    Airfield Simulation Modeling History and Summary: Sustainable Airport Master Plan, Seattle-Tacoma International Airport

    LeighFisher memorandum summarizing airfield simulation modeling conducted for the Port Of Seattle Sustainable Airport Master Plan (SAMP) and follow-on NEPA review at Sea-Tac Airport. Covers TAAM (Total Airport and Airspace Modeller) model development from 2015 through mid-2017, including initial calibration to 2014 activity, FAA-requested recalibration to 2016 activity, maximum sustainable throughput experiments, and revised future-year
    TagsFAA, Port Of Seattle, SAMP, Sea-Tac Airport, Sustainable Airport Master PlanFolder2024 Draft EA
  • 2020-12-17

    Response to Alex Stone’s email of December 17, 2020 re: Rep. Smith’s proposed House Bill

    This document is a detailed response regarding a proposed Washington State house bill on airport sound insulation, arguing that homeowners near Sea-Tac Airport who received faulty or inadequate noise insulation in the 1980s–2000s should qualify for a second round of repairs at no fault of their own. The author contends that poor contractor quality, a bankrupt window manufacturer, and dramatically increased flight operations have left many residents without the noise protection they were promised in exchange for signing away air rights. Key recommendations include limiting eligibility to homes originally certified under the 65 dB DNL noise contour, using certified engineers to assess repair needs, and tying funding criteria to documented increases in aircraft operations over time.
    TagsAIP, Noise Mitigation, Part 150, Port Of Seattle, Sound InsulationFolderSP #2
  • 2020-12-15

    Burien Airport Committee agenda – December 15, 2020

    The Burien Airport Committee held a virtual meeting on December 15, 2020, to address several issues related to Seattle-Tacoma International Airport, including finalizing a letter to the Port of Seattle regarding a controversial 250-degree flight turn, discussing improvements to the SeaTac Airport Stakeholder Advisory Round Table (StART), and reviewing a letter concerning the Port's COVID-19 response. The committee also reviewed draft minutes from its November 17, 2020 meeting, during which members discussed adding more community representatives from areas such as Beacon Hill, Shoreline, and Vashon to improve StART's reach. All meetings were conducted remotely via Zoom in compliance with Governor Inslee's COVID-19 public gathering restrictions.
    TagsBurien 250 Turn, Burien Airport Committee, COVID-19, Port Of Seattle, StARTFolderBurien Airport Committee

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Upcoming Events

  • Port of Seattle Regular Commission Meeting September 22, 2026
    Add to CalendarMTuesday Sep 22: 12:00pm
    17801 International Blvd, Seattle, WA 98158
    2026 09 22 rm packet pdf

    Order of Business 10:30 a.m. 1. Call to Order 2. Executive Session – if necessary, pursuant to RCW 42.30.110 (executive sessions are not open to the public) 12:00 p.m. – Public Session Reconvene or Call to Order and Pledge of Allegiance 3. Approval of the Agenda 4. Special Orders of the Day 4a. Presentation of

    [...]
  • Highline Forum Agenda – September 23, 2026
    Add to CalendarMWednesday Sep 23, 2:30pm - 4:30pm
    City of Des Moines, Police Services Building,
    Highline forum agenda final 23sept2026 pdf

    Highline Forum Agenda Theme: Part 150 Update and PortJobs Overview 2:30pm – Convene Meeting/Introductions Port Co-Chair, Commissioner Mohamed 2:35pm – Public Comments Audience The meeting will be held in person and virtually. Those wishing to provide public comment may: 1) Deliver public comment via email; 2) Deliver public comment via Microsoft Teams; or 3) Deliver

    [...]

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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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    "Resolution No. 2626: A resolution establishing planning and developmental policies relating to Sea-Tac International Airport and its vicinity" — , 1976

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