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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.

TagSea-Tac Airport(2010)

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  • August 11, 2026 upgradesea sce concourselevellookingeast 1500x844 web
    2026-08-10

    SEA Airport Moves Forward with Next Major Renovation: S Concourse

    August 11, 2026 The Port of Seattle Commission authorized initial funding today for the next significant modernization project at Seattle-Tacoma International Airport (SEA) — the S Concourse Evolution (SCE) — with major construction scheduled to start in 2027. As part of the $5.5 billion Upgrade SEA capital improvement program, the estimated $2.5 billion S Concourse
    CategoriesFrom The Web TagsAirport, Airport Expansion, Construction, Port Of Seattle Commission, Sea-Tac Airport
  • Mitigation bank project sites pdf
    2026-07-31

    Mitigation bank project sites map

    A map showing potential mitigation sites and existing Port of Seattle habitat sites in the greater Seattle area, including Terminal 25, Terminal 117, and the Auburn Site. The map covers cities including Seattle, Burien, Tukwila, SeaTac, Des Moines, Federal Way, Kent, Renton, and Auburn. Sites are categorized by land use type including storage, vacant, and
    TagsAuburn Wetland, Environmental Impact Statement, Map, Port Of Seattle, Sea-Tac Airport
  • Pxl july 30, 2026 202648865
    2026-07-30

    Auburn Wetland Nature Trail Path and Informational Kiosk

    A paved gravel path flanked by wooden split-rail fences curves through dense green vegetation toward a visible informational signboard or kiosk in the background. The setting appears to be a public nature trail or park access path on a clear sunny day.
    TagsAuburn Wetland, City of Auburn, Environment, Parks, Port Of Seattle, Sea-Tac Airport
  • Airport Terminal Interior
    2026-07-29

    Sea-Tac Airport expansion plan riles surrounding community

    Sea-Tac hit a record 52.6 million passengers in 2025, a total expected to climb in the coming years. Don Wilson | Port of Seattle By Nick Pasion – Reporter, Puget Sound Business Journal Jul 13, 2026   Listen to this article5 min Story Highlights What’s This? The Port of Seattle’s Sustainable Aviation Master Plan includes 31 projects
    CategoriesFrom The Web TagsPuget Sound Business Journal, SAMP, Sea-Tac Airport
  • 2026 07 28 sm packet pdf
    2026-07-28

    Port of Seattle Special Commission Meeting July 28, 2026

    **8e.** One-year extension of the Duwamish Basin Steward Interlocal Agreement through December 31, 2027 **10b.** Introduction and adoption of Resolution No. 3852 amending Commission Bylaws — Articles IV (Meetings) and VI (Rules of Order) **11a.** 2026 Police Department Update presentation
    CategoriesEvents TagsDuwamish River, Fred Felleman, Port Of Seattle, Port Of Seattle Commission, Sea-Tac Airport
  • 2026 07 28 sm packet pdf
    2026-07-28

    Port Of Seattle Regular Commission Meeting agenda, July 28, 2026

    This document is the agenda for a Port of Seattle Regular Commission Meeting held on July 28, 2026, covering routine administrative and operational matters such as approval of meeting minutes, claims and obligations, lease agreements, and custodial services contracts. The meeting agenda does not contain any items specifically related to Sea-Tac Airport noise policy. Notable items include a $150 million authorization for airport custodial services contracts through 2031 and environmental stewardship agreements for the Duwamish Basin.
    TagsDuwamish River, Fred Felleman, Port Of Seattle, Port Of Seattle Commission, Sea-Tac Airport
  • 2026-07-28

    Port Of Seattle Regular Commission Meeting agenda, July 28, 2026

    This document is the agenda for a Port of Seattle Regular Commission Meeting held on July 28, 2026, covering routine administrative and operational matters such as approval of meeting minutes, claims and obligations, lease agreements, and custodial services contracts. The meeting agenda does not contain any items specifically related to Sea-Tac Airport noise policy. Notable items include a $150 million authorization for airport custodial services contracts through 2031 and environmental stewardship agreements for the Duwamish Basin.
    TagsDuwamish River, Fred Felleman, Port Of Seattle, Port Of Seattle Commission, Sea-Tac Airport
  • Iaf seating
    2026-07-16

    International Arrivals Facility seating area under construction

    Interior view of the International Arrivals hall at Seattle-Tacoma International Airport (SEA), identifiable by the 'International Arrivals – EXIT ONLY' signage visible on the upper right. The space features newly installed terrazzo flooring with a wave pattern and modular concrete seating blocks, with a worker in a high-visibility vest suggesting ongoing construction or finishing work.
    TagsConstruction, IAF, International Arrivals Facility, Sea-Tac Airport, Terminal
  • 2026-07-14

    Seattle Tacoma International Airport (SEA) Sustainable Airport Master Plan (SAMP) Draft Environmental Impact Statement (DEIS) community open house

    The City of Burien, Des Moines, and SeaTac co-hosted a Community Open House on July 14, 2026, to present the Draft Environmental Impact Statement (DEIS) for Seattle-Tacoma International Airport's Sustainable Airport Master Plan (SAMP). The meeting covered proposed airfield, terminal, cargo, and landside expansion projects, along with their potential environmental impacts on surrounding communities. Residents were invited to learn about next steps and submit public comments on the plan.
    Tagscommunity engagement, Environmental Impact Statement, Open House, SAMP, Sea-Tac Airport
  • 2026 07 14 SAMP community open house slides pdf
    2026-07-14

    Seattle Tacoma International Airport (SEA) Sustainable Airport Master Plan (SAMP) Draft Environmental Impact Statement (DEIS) community open house

    The City of Burien, Des Moines, and SeaTac co-hosted a Community Open House on July 14, 2026, to present the Draft Environmental Impact Statement (DEIS) for Seattle-Tacoma International Airport's Sustainable Airport Master Plan (SAMP). The meeting covered proposed airfield, terminal, cargo, and landside expansion projects, along with their potential environmental impacts on surrounding communities. Residents were invited to learn about next steps and submit public comments on the plan.
    Tagscommunity engagement, Environmental Impact Statement, Open House, SAMP, Sea-Tac Airport

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Upcoming Events

  • StART SEA Stakeholder Advisory Round Table
    Add to CalendarMWednesday Aug 26, 5:00pm - 7:00pm
    Zoom (Virtual Meeting)
    START meetingagenda 2026826 final 0 pdf

    Meeting Objectives Introduce the primary feedback themes identified by StART members regarding StART’s Operating Procedures and determine areas that may warrant future discussion. 5:00 PM – Welcome Meeting Management Welcome Lead: Andrés Mantilla, Facilitator, Uncommon Bridges; Wendy Reiter, Airport Managing Director, POS 5:15 PM – Dinner: All participants eat. 5:30 PM – StART Operating Procedures

    [...]
  • Commercial Aviation Work Group
    Add to CalendarMThursday Sep 3, 10:00am - 1:30pm
    Virtual Meeting (Zoom)
    Cawg agenda sep 3 26 virtual pdf

    Meeting Agenda 10:00 a.m. – 10:15 a.m. | Welcome – Evan Nordby, Chair a. Introductions and Agenda Reviewb. Status of appointments and non-voting member invitationsc. Other updates as necessary 10:15 a.m. – 11:00 a.m. | Is it practical and legal to operate the western Washington [Puget Sound] airports as a single airport system? – Consultant

    [...]

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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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