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STNI
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.

TagAirport Expansion(34)

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  • 2024-06-25

    SR 509, I-5 to 24th Avenue S. (Stage 1b)

    Aerial view map showing planned transportation infrastructure improvements including new ramps connecting SR 509 to I-5, Veterans Drive I-5 undercrossing and SR 516 interchange improvements, wider sidewalks and shared use paths, and future Sound Transit Kent/Des Moines Station location. The map covers areas of Des Moines and Kent with detailed routing and construction zones marked.
    TagsAirport, Airport Development Fund, Airport Expansion, Port Of Seattle
  • 2024-06-25

    SR 509, I-5 to 24th Avenue S. (Stage 1b)

    Aerial map showing planned SR 509 expressway construction from I-5 to 24th Avenue South, including new interchange ramps and reconfigured streets near SeaTac and Angle Lake areas. The map displays future construction stages, toll points, and connections to existing highways and Sound Transit stations.
    CategoriesResources TagsAirport, Airport Expansion, Airport Layout Plans, seatac, Sound Transit
  • 2024-01-01

    Flight Corridor Safety Program 2024 – Category III Selection Summary

    Selection summary for the Flight Corridor Safety Program at Seattle-Tacoma International Airport, evaluating four firms (AECOM, HNTB, Jacobs Engineering, RS&H) for a $2M contract to manage obstructions consisting of trees and vegetation around the airport. HNTB was awarded the contract after receiving outstanding ratings across all criteria.
    CategoriesKey Documents TagsAirport, Airport Expansion, Aviation Committees, Port Of Seattle
  • 2023-07-18

    Aerial View of Airport Facility

    Aerial photograph showing an airport complex with runways, aircraft parking areas, terminal buildings, and surrounding industrial facilities. The image shows what appears to be a major airport with multiple runways and extensive ground infrastructure near a large body of water.
    Tagsaircraft, Airport, Airport Expansion, Runways
  • 2023-04-07

    Airport Tarmac with S4 Gate Marking

    Airport tarmac image showing concrete surface with yellow painted markings including ‘S4’ gate designation. Aircraft and terminal buildings are visible in the background, along with typical airport ground infrastructure.
    Tagsaircraft, Airport, Airport Expansion
  • Future Airport Expansion With An Independent Runway One Mile East of 34R

    CategoriesHistory TagsAirport Expansion, Fourth Runway, Map, Runways
  • 2022-11-16

    Say NO to Future Graham & Eatonville-Roy Airport Sites!

    A protest sign opposing the development of future commercial aviation sites at Graham and Eatonville-Roy airports. The sign provides contact information for the Commercial Aviation Coordinating Commission and encourages people to join the Coalition Against Graham and Eatonville-Roy Airports for updated information.
    CategoriesLegislation, Organizations TagsActivism, Air Transportation Commission, Airport Communities Coalition, Airport Expansion
  • 2022-06-01

    Everett Link Extension – EVLE Level 2 Station & Alignment Alternatives

    Sound Transit map showing the Everett Link Extension Level 2 station and alignment alternatives. The map displays representative station alternatives and other alignment options connecting Everett to West Alderwood, including stops at SW Everett Industrial Center, SR 99/Airport Road, Mariner, and Ash Way.
    CategoriesKey Documents TagsAirport, Airport Expansion
  • 2002-06-03

    Des Moines Beach Park Legal Analysis and Department of Ecology Letter on Third Runway Fill Material

    Legal memorandum analyzing King County’s role in proposed Des Moines Beach Park conveyor belt operation, including property rights and park use restrictions. Includes Department of Ecology letter clarifying fill material certification requirements for Port of Seattle’s third runway construction.
    CategoriesKey Documents, Litigation TagsAirport Expansion, Airport Law, Port Of Seattle
  • 2002-06-03

    Legal Analysis of King County’s Role in Des Moines Beach Park Conveyor Belt Proposal

    Legal counsel James L. Brewer analyzes King County’s jurisdictional authority regarding a proposed fill material conveyor belt operation at Des Moines Beach Park. The memo examines property interests, covenants requiring park use only, and concludes the proposed 30-month project would be inconsistent with park purposes due to significant disruption.
    CategoriesKey Documents, Litigation TagsAirport Communities Coalition, Airport Expansion, airport issues

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Upcoming Events

  • Port of Seattle Regular Commission Meeting April 28, 2026
    Add to CalendarMTuesday Apr 28: 12:00pm
    17801 International Blvd, Seattle, WA 98158
    2026 04 28 RM Packet Pdf 1

    # New Business Items
    **Order No. 2026-04:** Directs Executive Director to explore a program facilitating secure area access for union business requirements at Seattle-Tacoma International Airport.

    **Resolution No. 3848:** Approves Port's participation in City of Bellevue's Tax Increment Area.

    **Fishermen's Terminal C-15 Building Improvements:** Authorization for Executive Director to approve funding to advertise and execute a major public works construction contract for project completion.

    [...]
  • StART (SEA Stakeholder Advisory Round Table) Meeting
    Add to CalendarMWednesday Apr 29, 5:00pm - 7:00pm
    Zoom Webinar
    Start Meetingagenda 2026429 Pdf 1

    - **SAMP Environmental Review**: Detailed comparison between SEPA Environmental Impact Statement and NEPA Environmental Assessment processes for Near-Term Projects
    - **Community Roundtable Updates**: Progress report on airport stakeholder engagement initiatives
    - **Next Steps**: Implementation timeline for environmental review findings

    **Notable Action Item:**
    Public comment period opened for stakeholder input on airport development plans.

    [...]
  • KCIA Vision 2045 Open House
    Add to CalendarMThursday May 14, 5:30pm - 7:30pm
    KCIA Flight Service Station, 6526 Ellis Ave. S. Seattle, WA 98108
    Kcia Boeing Field Beautyshotkcia

    King County International Airport-Boeing Field is at a pivotal moment, developing comprehensive plans that will determine its operations through 2045. The airport's Vision 2045 Airport Plan and Part 150 Study represent crucial strategic initiatives to balance safe, efficient operations with evolving aviation demands and community needs.

    Join airport officials on Thursday, May 14 (5:30-7:30 p.m.) at the KCIA Flight Service Station to discover the preferred alternative for the airport's future development. This isn't just another planning meeting—it's your opportunity to understand how proposed projects and improvements will directly impact aviation services, local operations, and surrounding communities.

    The Vision 2045 plan incorporates extensive stakeholder feedback and addresses critical infrastructure needs for future demand. Meanwhile, the Part 150 Study focuses on noise compatibility programs, ensuring community concerns remain central to planning decisions.

    With environmental analysis nearing completion and submissions to King County Council and the FAA approaching, this open house offers essential insights into decisions that will shape regional aviation for decades.

    Visit KCIAplanning.com for updates.

    [...]

[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!

This is the first study to combine a one-year mobile monitoring campaign with PMF (Positive Matrix Factorization) analysis to simultaneously estimate source-specific air pollution exposures and emission factors of different vehicle types. This methodology can be extended to other metropolitan areas.
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