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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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  • 2016-11-01

    Phase 3 – Residential/Commercial: Location of existing and potential obstructions flight corridor safety obstruction management Port Of Seattle

    This map, prepared by the Port of Seattle in November 2016, shows the location of existing and potential flight-path obstructions around Seattle-Tacoma International Airport as part of Phase 3 of the Flight Corridor Safety Obstruction Management program. It identifies private and Washington State DOT (WSDOT) properties, city boundaries for Des Moines, Burien, and SeaTac, and the approximate airport property boundary. The document is intended to support planning efforts that ensure structures in surrounding residential and commercial areas do not pose safety hazards to aircraft flight corridors.
    TagsFlight Corridor Safety Program, Map, Port Of Seattle, Sea-Tac AirportFolderFlight Corridor Safety Program
  • 2016-11-01

    Phase 2 – Other jurisdictions: Location of existing and potential obstructions, Flight Corridor Safety Obstruction Management, Port Of Seattle

    This map, prepared by the Port of Seattle, shows the location of existing and potential flight path obstructions around Seattle-Tacoma International Airport as part of a Flight Corridor Safety Obstruction Management study. It identifies public and state (WSDOT) properties, city boundaries for surrounding jurisdictions including Burien, Des Moines, and SeaTac, and the approximate airport property boundary. The document is part of Phase 2 of the study focusing on other jurisdictions outside the airport's direct control.
    TagsCity of Burien, Flight Corridor Safety Program, Map, Port Of Seattle, Sea-Tac AirportFolderFlight Corridor Safety Program
  • 2016-10-25

    Flight Corridor Safety Program – Phase 1 Commission Agenda Memorandum

    Commission agenda memorandum requesting authorization for a $500,000 budget increase and contract award for Phase 1 of the Flight Corridor Safety Program. The project involves removing approximately 1,170 trees that obstruct aircraft operations and replanting 4,000 trees as mitigation, with total project cost of $3,231,000.
    TagsFlight Corridor Safety Program, Port Of SeattleFolderFlight Corridor Safety Program
  • 2016-10-11

    Single Family Sound Insulation Program Authorization — $14.5 Million for 123 Homes (October 2016)

    Presentation slide describing a new boundary Single Family Sound Insulation program with authorization of $14,535,000, covering 123 eligible homes. Funding sources include approximately $8.4 million from FAA Grants plus Port funding from PFCs, ADF, and sale of previously purchased noise land.
    TagsFAA, Noise Mitigation, Port Of Seattle, Sound InsulationFolderNoise Mitigation
  • 2016-10-11

    Airport noise insulation project

    This October 2016 Port of Seattle briefing presents the Airport Noise Insulation Project for Sea-Tac Airport, outlining how a federally guided noise study (known as a Part 150) is used to identify noise and land-use conflicts in surrounding communities. The project aims to provide sound insulation to eligible homeowners in high-noise areas, with approved mitigation measures qualifying for 80% federal Airport Improvement Program (AIP) grant funding. The briefing covers project elements, homeowner eligibility requirements, community benefits, and associated costs.
    TagsAIP, Part 150, Port Of Seattle, Sound InsulationFolderMeetings
  • 2016-08-29

    A major land deal could spark economic development in Burien.

    The new cold storage facility will be 241, 140 square feet. The land it is on is part of a 14-acre parcel in the Northeast Redevelopment Area (NERA) of Burien created in 1997. A major land deal could spark economic development in Burien. Cold storage warehouse will take the space 08/29/2016 by Lindsay Peyton Real
    CategoriesFrom The Web TagsCity of Burien, Highline Times, NERA, Northeast Redevelopment Area, Port Of Seattle
  • 2016-08-19

    Huge new cold storage plant to be built in Burien’s Northeast Redevelopment Area

    By Jack Mayne A huge new cold storage facility will be completed in Burien in a few months, following the earlier $4.5 million sale of 14 acres of city-owned land in the Northeast Redevelopment Area. Bridge Development Partners of Chicago becomes the first private developer in Burien’s Northeast Development Area, better known as the NERA. The Port of Seattle
    CategoriesFrom The Web TagsB-Town Blog, NERA, Northeast Redevelopment Area, Port Of Seattle
  • Flight Corridor Safety Program P5 Tree Cutting July 28, 2016

    Engineering drawing prepared by CH2M for the Port of Seattle's Sea-Tac International Airport Flight Corridor Safety Program, Phase 1 (sheet LD122, project U00225/664521, dated 07/28/2016). The plan shows Site P-5 tree removal, invasive species clearing, staging areas, and site access routes overlaid on an aerial photograph, with a detailed legend distinguishing selective tree removal, knotweed protection areas, wetlands, and clearing limits.
    CategoriesResources TagsFAA, Flight Corridor Safety Program, Hillgrove Cemetery, Port Of Seattle, TreesFolderHillgrove Cemetery
  • 2016-07-20

    Sustainable Airport Master Plan: Presentation to Washington State Transportation Commission

    This 2016 Port of Seattle presentation outlines the Sustainable Airport Master Plan for Seattle-Tacoma International Airport, which was the fastest-growing large hub airport in the U.S. at the time, handling 42.3 million passengers and 381,000 flight operations in 2015. The plan projects significant growth through 2034, forecasting up to 66 million annual passengers and 540,000 aircraft operations, driven by the region's expanding economy. Major infrastructure projects underway included a North Satellite Expansion, a new International Arrivals Facility, runway reconstruction, and a baggage system overhaul to accommodate this growth.
    TagsPort Of Seattle, SAMP, Sea-Tac Airport, Sustainable Airport Master Plan, Washington State Transportation CommissionFolderSAMP
  • 2016-07-15

    Air Quality Criteria Pollutant Emissions Inventory Task 2.8: Working Paper – Documentation of Assumptions

    This 2016 working paper documents the methods and assumptions used to build an air quality emissions inventory for Seattle-Tacoma International Airport as part of the Sustainable Airport Master Plan. Using the FAA's EDMS modeling software, analysts estimated pollution from sources including aircraft engines, ground support equipment, parking, and stationary facilities such as generators and boilers. Aircraft operation data for 2014 was gathered from multiple sources, including FAA tower records, airline guides, and the Port of Seattle's own noise monitoring system.
    TagsAviation Emissions, EDMS, EPA, Leigh-Fisher, pollution, Port Of Seattle, SAMP, Sustainable Airport Master PlanFolderSAMP

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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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