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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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  • 2023-03-19

    Wash. among leaders for single-engine plane accidents

    A March 2023 News Tribune article reports on the disappearance of pilot Rodney Collen, whose single-engine Cessna T182T went off radar shortly after departing Tacoma Narrows Airport on March 6, 2023, prompting a search near Queets, Washington. The article uses the incident as a starting point to examine Washington State's ranking as one of the top states for single-engine plane accidents, drawing on NTSB data showing the state ranks seventh nationally since 2012. Experts attribute the higher accident rate to challenging weather conditions and a robust aviation community, while noting that overall general aviation safety has improved nationwide over the past two decades.
    CategoriesFrom The Web TagsGeneral Aviation, National Transportation Safety Board, News Tribune, NTSB, WSDOTFolderGeneral
  • 2023-01-01

    Final Bill Report ESHB 1791: Studying the Need for Increased Commercial Aviation Services

    Washington State's ESHB 1791 replaces the Commercial Aviation Coordinating Commission with a new Commercial Aviation Work Group tasked with studying the long-range commercial aviation needs of the state, including evaluating potential sites for new or expanded airports. The Work Group must consider environmental impacts, greenhouse gas emissions, water quality, and compatibility with military installations, while excluding expansion of airports in counties with populations of 2 million or more residents — effectively ruling out major expansion at Sea-Tac. The group is required to submit annual progress reports to the Governor and the Legislature's Transportation Committees.
    TagsCACC, Commercial Aviation Coordinating Commission, Commercial Aviation Work Group, HB1791, Washington State Legislature, WSDOTFolderCACC
  • 2022-11-16

    SR 509 Completion Project: Highline Forum presentation

    A November 2022 WSDOT presentation by Construction Manager Andrey Chepel outlines progress on the SR 509 Completion Project, part of the broader Puget Sound Gateway Program in King County. The project aims to improve freight and passenger connections to the Port of Seattle and Sea-Tac Airport area by completing a long-planned highway extension. The presentation covers construction stages 1a and 1b, upcoming Stage 2 procurement, and community engagement efforts.
    Tagscommunity engagement, Highline Forum, Puget Sound, SR509, WSDOTFolderHighline Forum 2022
  • Seattle needs a new Sea-Tac-sized airport. No one wants it near them

    1 of 8 | Jeremy Foust, owner of Left Foot Farm in Eatonville, pauses before feeding his goats. Foust’s goat farm falls inside the circle identified as a possible airport site. (Karen Ducey / The Seattle Times) By  Dominic Gates  Seattle Times aerospace reporter By 2040, Western Washington will need another large airport. State officials
    CategoriesFrom The Web TagsBruce Dammeier, CACC, Dominic Gates, Seattle Times, Second Airport, WSDOT
  • 2022-10-15

    Commercial Aviation Coordinating Commission Report to Legislative Transportation Committees

    A 2022 Washington State report recommends a three-part strategy to address the region's projected 27 million annual passenger shortfall by 2050: expanding capacity at existing airports like Paine Field and Sea-Tac, and developing a new greenfield airport in Pierce or Thurston County. Sea-Tac is expected to remain the region's primary hub, optimizing capacity for passengers and freight through the 2030s under its Sustainable Airport Master Plan. The report also highlights the need to address harmful emissions and noise as part of an 'Airport of the Future' approach.
    TagsCACC, Commercial Aviation Coordinating Commission, Paine Field, WASP, WSDOTFolderCACC
  • 2022-09-13

    Commercial Aviation Coordinating Commission: Online Open House and Virtual Public Meeting Report

    The Commercial Aviation Coordinating Commission (CACC) held an online public engagement process in August–September 2022 to gather Washington state residents' input on potential new airport sites. Nearly 20,000 users participated, and majorities opposed all ten proposed 'greenfield' locations, citing concerns about environmental impacts, noise, farmland loss, and traffic. The most common feedback at virtual public meetings was opposition to the East King County site, with many participants also raising concerns about proximity to Sea-Tac Airport.
    CategoriesMeetings TagsCACC, Commercial Aviation Coordinating Commission, community engagement, Open House, WSDOTFolderCACC
  • 2022-09-01

    Regional high occupancy vehicle system policies

    This document outlines regional policies for High Occupancy Vehicle (HOV) lanes in the central Puget Sound region, covering rules for lane operation, enforcement, and public education. It establishes that HOV lanes should be reserved 24 hours a day, seven days a week for buses, carpools, and vanpools, and calls for increased fines for violations and better use of technology to improve compliance. The policies were developed by the Regional HOV Policy Advisory Committee in 1998-1999 and are intended to reduce traffic volumes, lower vehicle emissions, and improve overall transportation efficiency.
    Tagsnon-aviation transportation, PSRC, Puget Sound Regional Council, transportation, WSDOTFolderDestination 2030 CD
  • 2022-09-01

    Destination 2030: Implementation guidance and actions

    Destination 2030 is a long-term regional transportation plan for the greater Seattle area that outlines both short-term investments (prior to 2010) and longer-term improvements through 2030, focusing on roadway expansions, HOV lane completions, freight network connections, and reduced traffic congestion. The plan prioritizes safety, maintenance, and optimization of existing roads before pursuing new capacity projects, while also emphasizing travel alternatives and pedestrian and bicycle improvements. Fund allocations are guided by project readiness, regional need, and consistency with local growth management policies.
    Tagsnon-aviation transportation, PSRC, Puget Sound Regional Council, Regional Transportation Plan, WSDOTFolderDestination 2030 CD
  • Barnes Creek Trail Mitigation Transportation Committee 09 Jun 2022 Agenda Pdf

    A Washington State Department of Transportation (WSDOT) presentation slide labeled 'Barnes Creek Mitigation Site – Stage 2' showing a draft conceptual restoration plan map for Barnes Creek Wetland Mitigation, part of the Puget Sound Gateway Program SR 509/24th Ave. S. to S. 188th St. New Expressway Project. The slide notes WSDOT is avoiding steep slope areas and identifies three potential site access points at South 223rd Street, South 222nd Street, and South 220th Street.
    TagsGateway Project, Map, SR509, WSDOTFolderSR-509
  • The Fourth Runway

    We’ve begun using the term “Fourth Runway” to describe two large projects (SR-509 and the Sustainable Airport Master Plan) as one system, which they are. The two projects have always been part of a regional plan begun over fifty years ago to meet the strategic goals of the Port Of Seattle and regional planners. The construction of SR-509 will affect the communities are great deal. But starting in 2027 the projects will also increase flight operations at least 33% and cargo operations by 300%.
    CategoriesExplainers Tags4th Runway, Fourth Runway, SAMP, SR509, Sustainable Airport Master Plan, WSDOT

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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...]


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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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