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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.

TagDes Moines(304)

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  • Pxl November 20, 2025 030029263
    2025-11-20

    Port of Seattle: Sea-Tac Airport History Talk — Des Moines Historical Society, Oddfellows Hall

    A community meeting or public information session held in a hall with wood-paneled walls and an American flag, with approximately 50 attendees seated in rows facing a presenter at a podium. A projected slide is visible showing a green shield/leaf logo and what appears to be a person's headshot, but the text and organization name are not clearly legible.
    CategoriesEvents, History Tagscommunity engagement, Des Moines, History, Port Of Seattle, Sea-Tac Airport
  • 2025-11-16

    Interlocal agreement for coordinated SAMP review and legal services

    The City of Des Moines and neighboring cities have entered into an Interlocal Agreement (ILA) to coordinate their review of and response to the SeaTac Airport Master Plan (SAMP) environmental review process, covering both federal (NEPA) and state (SEPA) requirements. Originally signed in 2018 and updated in 2024, the agreement establishes how participating cities share costs, manage contracts, and jointly hire environmental and legal consultants—including attorneys who can support a legal challenge to the SAMP's environmental conclusions. The latest version, managed by the City of SeaTac and expected to run through December 31, 2028, excludes Normandy Park but otherwise continues the multi-city partnership focused on protecting community interests during the airport planning process.
    TagsDes Moines, Interlocal Agreement, NEPA, SAMP, SEPA
  • Des Moines Interlocal Agreement for Coordinated SAMP Review and Legal Services Powerpoint Pdf
    2025-11-16

    Interlocal agreement for coordinated SAMP review and legal services

    The City of Des Moines and neighboring cities have entered into an Interlocal Agreement (ILA) to coordinate their review of and response to the SeaTac Airport Master Plan (SAMP) environmental review process, covering both federal (NEPA) and state (SEPA) requirements. Originally signed in 2018 and updated in 2024, the agreement establishes how participating cities share costs, manage contracts, and jointly hire environmental and legal consultants—including attorneys who can support a legal challenge to the SAMP's environmental conclusions. The latest version, managed by the City of SeaTac and expected to run through December 31, 2028, excludes Normandy Park but otherwise continues the multi-city partnership focused on protecting community interests during the airport planning process.
    TagsDes Moines, Interlocal Agreement, NEPA, SAMP, SEPA
  • Screenshot 16 11 2025 213022 Www.youtube.com
    2025-11-16

    Des Moines, WA – NEPA Appeal Slide, Airport Advisory Committee Recommendation

    A City of Des Moines (Washington) presentation slide outlining a NEPA appeal with a deadline of 11/24/2025, an estimated initial filing cost of $1,000, and a recommendation from the Airport Advisory Committee that the City file the appeal. The slide notes the City would return to Council in early 2026 before incurring additional legal costs.
    TagsAdvisory Committees, City Of Des Moines, Des Moines, NEPA
  • Screenshot 16 11 2025 213129 Www.youtube.com
    2025-11-16

    City Council or Advisory Board Meeting with visible name placards

    A formal council or board meeting showing approximately six members seated at a curved wooden dais with name placards visible, including what appear to be members Traci Burton, Harry Steinmetz, Matt Mahoney, Jeremy Nutting, JC Harris, and Gene Achziger.
    Tagscity council, Des Moines, Video, Youtube
  • 2025-10-31

    SeaTac Permanent Noise Monitors with HAWKZ8 final approach

    A map of the Seattle-Tacoma area showing numbered noise monitoring station locations (numbered 1, 15–23, 25, 28) clustered around Seattle-Tacoma International Airport (SeaTac) and extending south through Des Moines, Federal Way, and toward Milton/Fife. The stations appear to track aircraft noise corridors along what is likely the primary north-south flight path, with a dark vertical line indicating the runway centerline or flight track.
    CategoriesResources TagsAirport, Des Moines, Federal Way, Port Of Seattle
  • City Council Meeting – Named Council Members at Dais

    A city council meeting showing five council members seated at a curved dais. Visible name placards include Traci Buxton, Harry Steinmetz, Matt Mahoney, Jeremy Watkins, JC Harris, and Gene Achziger.
    Tagscity council, City Of Des Moines, Des Moines
  • 2025-09-30

    South King and Port Communities Fund (SKPCF) Environmental Improvement Program (EGP) – Cycle V: Exhibit 1 – Eligibility and Priority Area Map

    This document presents the eligibility and priority area map for Cycle V of the South King and Port Communities Fund (SKPCF) Environmental Improvement Program (EGP), administered by the Port of Seattle. The map outlines the geographic boundaries of communities in South King County — including areas such as Burien, Tukwila, Renton, Des Moines, Kent, and Federal Way — that are eligible for environmental improvement funding, likely related to noise and pollution impacts from Sea-Tac Airport and port operations. Priority zones are visually highlighted to help direct resources toward the most affected neighborhoods within the program's service area.
    TagsDes Moines, Federal Way, Map, Port Of Seattle, South King County Fund
  • 2025-09-30

    South King and Port Communities Fund (SKPCF) Environmental Improvement Program (EGP) – Cycle V: Exhibit 1 – Eligibility and Priority Area Map

    Port of Seattle eligibility and priority area map for the South King and Port Communities Fund (SKPCF) Environmental Improvement Program (EGP) Cycle V. The map depicts the geographic boundaries of the program’s eligible and priority areas across South King County communities including Tukwila, Renton, Burien, Normandy Park, Des Moines, Kent, Federal Way, Boulevard Park, and
    TagsDes Moines, Federal Way, Map, Port Of Seattle, South King County Fund
  • 2025-09-30

    HCM Signalized Intersection Capacity Analysis: SR 509 SB Ramps, NB SR 509 Ramps, and Des Moines Way S at S 128th St — 2032 No Action PM Peak

    This traffic engineering report analyzes three signalized intersections along S 128th Street near SR 509 in the Sea-Tac area under projected 2032 No Action conditions during the PM peak hour. The study finds that the SR 509 ramp intersections are operating well over capacity, with an Intersection Capacity Utilization of 104.6% and an ICU Level of Service G, while the Des Moines Way S intersection operates more acceptably at 63.3% ICU. Overall intersection control delays range from approximately 19 to 27 seconds, with most approaches functioning at Level of Service B or C.
    TagsDes Moines, Environmental Impact Statement, NEPA, SAMP, SR509, Sustainable Airport Master Plan, WSDOT

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  • StART SEA Stakeholder Advisory Round Table
    Add to CalendarMWednesday Aug 26, 5:00pm - 7:00pm
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    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

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    Add to CalendarMThursday Sep 3, 10:00am - 1:30pm
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    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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