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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.
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  • 2019-09-17

    RCW 47.80.020: Regional transportation planning organizations authorized

    Washington State law (RCW 47.80.020) authorizes the creation of Regional Transportation Planning Organizations (RTPOs), formed through voluntary associations of local governments within contiguous counties. Each RTPO must meet minimum population and geographic requirements, include all counties in the region, and have at least 60% of cities and towns representing 75% of the regional city/town population as members. In urbanized areas, the RTPO is the same body as the federally designated Metropolitan Planning Organization (MPO), also known as a COG.
    Tagsnon-aviation transportation, PSRC, RCW, Regional Transportation Plan, Washington State LegislatureFolderSP #2
  • 2019-01-01

    Seattle Times 2019 Concept Map of Pacific Northwest High-Speed Rail Stations

    A 2019 concept map published by The Seattle Times (credit: Mark Nowlin) showing potential bullet train stations between Portland, Oregon and Vancouver, British Columbia, including stops at Seattle, Tacoma, Everett, Bellevue/Redmond, and other Northwest cities. The accompanying text notes Washington, in partnership with British Columbia and Oregon, proposed a study costing up to $348 million to plan high-speed rail infrastructure; sources cited are Esri, Washington State Department of Transportation, and WSP.
    TagsMap, non-aviation transportation, Seattle Times, State of WashingtonFolderFederal
  • 2018-09-01

    Construction and Implementation Plan

    Construction and Implementation Plan for the Puget Sound Gateway Program, prepared by the Washington State Department of Transportation (WSDOT) in September 2018. Covers SR 167 Completion Project and SR 509 Completion Project, including project phasing, construction stages, delivery method, funding sources (toll funding, local funding, grants), expenditure and sequencing plan, and community and stakeholder engagement.
    TagsGateway Project, non-aviation transportation, Puget Sound, SR509, WSDOTFolderSR-509
  • Gateway construction and implementation plan pdf
    2018-09-01

    Construction and Implementation Plan

    Construction and Implementation Plan for the Puget Sound Gateway Program, prepared by the Washington State Department of Transportation (WSDOT) in September 2018. Covers SR 167 Completion Project and SR 509 Completion Project, including project phasing, construction stages, delivery method, funding sources (toll funding, local funding, grants), expenditure and sequencing plan, and community and stakeholder engagement.
    TagsGateway Project, non-aviation transportation, Puget Sound, SR509, WSDOTFolderSR-509
  • 2014-03-25

    South 200th Link Extension Briefing: Sea-Tac City Council Briefing

    This March 25, 2014 Sound Transit briefing document, presented to the SeaTac City Council, outlines the South 200th Link Extension project—a 1.6-mile elevated light rail extension from the SeaTac/Airport Station to a new Angle Lake Station, including a parking garage. The project was scheduled for construction between 2013 and 2016, with a planned opening for service in Fall 2016, and carried a total budget of $383.2 million.
    TagsCity Of SeaTac, Highline Forum, non-aviation transportation, Presentation, Sound TransitFolderHighline Forum 2014
  • 2001-06-22

    Aerial View of Multi-Lane Highway Interchange Near Commercial Area in Pacific Northwest

    Aerial photograph showing a busy multi-lane highway interchange featuring an overpass bridge crossing a parallel road, with a river and green vegetation visible to the left. Commercial and industrial buildings with large parking lots are visible in the upper portion of the image, consistent with a suburban Pacific Northwest setting.
    TagsAirports, non-aviation transportation, SR509FolderWatershed Aerial Photos
  • 2001-06-22

    Aerial View of Interstate Highway Crossing River With Suburban Retail Center, Pacific Northwest

    Aerial photograph showing a wide multi-lane interstate highway (visible green overhead directional signs) crossing over a river or waterway, with a large suburban retail shopping center and surface parking lots visible to the left. The setting appears to be the Pacific Northwest based on the dense conifer-covered hillsides and overall landscape character.
    TagsAirports, non-aviation transportation, Puget Sound, State of WashingtonFolderWatershed Aerial Photos
  • 2001-06-22

    Aerial View of Highway Overpass Construction Near Puget Sound

    Aerial photograph showing a multi-lane highway with an overpass bridge under active construction, surrounded by suburban development including what appears to be a school bus depot or transit facility. A body of water is visible in the far background, consistent with the Puget Sound region of Washington State.
    TagsConstruction, non-aviation transportation, Puget Sound, SR509FolderWatershed Aerial Photos
  • 2001-06-22

    Aerial View of Freeway Overpass with Texaco Station and Riparian Vegetation, Greater Seattle Area

    Aerial photograph showing a multi-lane freeway (appearing to be I-5 or a similar Pacific Northwest interstate) crossing over a small river or creek, with a surface street interchange, commercial parking lot with a visible Texaco station logo, and dense riparian vegetation below the overpass. The image appears relevant to transportation infrastructure documentation in the greater Seattle/Sea-Tac area.
    Tagsnon-aviation transportation, Puget Sound, transportationFolderWatershed Aerial Photos
  • 2001-05-24

    Destination 2030: Metropolitan transportation plan for the central Puget Sound region

    Destination 2030 is the Metropolitan Transportation Plan for the central Puget Sound region, developed by the Puget Sound Regional Council (PSRC) and adopted on May 24, 2001. It serves as a long-range regional transportation blueprint covering King, Kitsap, Pierce, and Snohomish counties, with input from dozens of member cities, counties, ports, and state agencies. The plan was funded in part through grants from the U.S. Department of Transportation, the Federal Transit Administration, the Federal Highway Administration, and the Washington State Department of Transportation.
    TagsMetroplitan Transportation Plan, non-aviation transportation, PSRC, Puget Sound Regional Council, Regional Transportation PlanFolderPuget Sound Regional Council

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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...]


Help study childhood asthma. Get free HEPA filter!

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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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