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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.

TagNoise Mitigation(218)

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  • 2022-08-27

    King County Zoning File Status for NIP

    This document lists 27 zoning petition files submitted to a planning authority, detailing the zone classification requested and whether each petition was approved or denied. Requests span a variety of zone types including residential (RD 3,600, RM 900), light manufacturing (M-L), industrial (M-1), commercial (C-G), and others, with the majority of petitions ultimately denied. A note at the bottom indicates that none of the cases were pending at the time of the record.
    TagsHighline Community Plan, King County, Land Use, Noise MitigationFolderProposed Boeing HQ 1978
  • 2022-08-24

    Airport Noise & Part 150 Study FAQs

    This FAQ document from the Port of Seattle addresses common questions about noise management at Seattle-Tacoma International Airport, including how and when the third runway is used, why the Port cannot impose noise-based restrictions on runway operations, and what types of noise mitigation projects qualify for FAA funding. It outlines the history of the Port's noise reduction efforts, such as home acquisitions, insulation programs, and the Fly Quiet Incentive Program, and explains the goals of the Part 150 Noise Study process. The document also highlights the economic importance of Sea-Tac to the Puget Sound region while acknowledging the challenges of reducing noise in a densely populated area around a major international airport.
    TagsNoise Mitigation, Part 150, Port Of Seattle, Sea-Tac Airport, Third RunwayFolder2013
  • STCP-6.6.5-27-south

    A planning map from the Sea-Tac Communities Plan, sponsored by the Port of Seattle and King County, showing the South Reinforcement Area program application with color-coded zones indicating acquisition, purchase guarantee, cost-sharing insulation, and limited cost-sharing insulation relative to airport noise contours. The map covers the area around S. 223rd Street south to Kent city limits, bounded by Puget Sound to the west and Pacific Highway South (SR-99) to the east, with landmarks including Mt. Rainier High School, Highline Community College, and Parkside Elementary labeled.
    TagsMap, Noise Mitigation, Port Of Seattle, Sea-Tac Communities Plan, Sound InsulationFolderChapter 6.6.5
  • STCP-6.6.5-26-south

    A planning map from the Sea-Tac Communities Plan, sponsored by the Port of Seattle and King County, showing the South Reinforcement Area program application. The map uses color coding to designate zones for acquisition, purchase guarantee, cost-sharing insulation, and limited cost-sharing insulation in the area bounded roughly by S. 200th St. to the north and S. 223rd St. to the south, including grid cells along 16th Ave. S., 24th Ave. S., and Pacific Highway South (SR-99), with a Southeast Conversion Area noted in the upper right.
    TagsKing County, Map, Noise Mitigation, Port Of Seattle, Sea-Tac Communities PlanFolderChapter 6.6.5
  • STCP-6.6.5-25-south

    A planning map produced under the Sea-Tac Communities Plan, sponsored by the Port of Seattle and King County, depicting the South Reinforcement Area program application near Seattle-Tacoma International Airport. The map identifies land-use zones including the Southwest Conversion Area, Southeast Conversion Area, and color-coded program interventions such as acquisition, purchase guarantee, cost-sharing insulation, and limited cost-sharing insulation, with grid cells referenced by noise criteria (e.g., N-25 through Q-28) and landmarks including Woodside School, Manhattan Elementary, and Tyee Golf Course.
    TagsMap, Noise Mitigation, Sea-Tac Airport, Sea-Tac Communities Plan, Sound InsulationFolderChapter 6.6.5
  • STCP-6.6.5-28-south

    A planning map from the Sea-Tac Communities Plan, sponsored by the Port of Seattle and King County, showing the South Reinforcement Area program application. The map uses color-coded grid cells (labeled N-41 through P-47) to designate zones for acquisition, purchase guarantee, cost-sharing insulation, and limited cost-sharing insulation relative to airport noise impacts, covering the area between approximately S. 252nd St. and S. 272nd St. along Puget Sound, including landmarks such as Woodmont Elementary and Mark Twain Elementary schools.
    TagsKing County, Map, Noise Mitigation, Port Of Seattle, Sea-Tac Communities PlanFolderChapter 6.6.5
  • seatac communities plan cover-smudged

    Cover of the 'Sea-Tac Communities Plan,' a planning document jointly produced by the Port of Seattle and King County. The hot-pink cover features bold black typography and a stylized geometric logo, likely related to noise mitigation or land-use planning around Seattle-Tacoma International Airport.
    TagsKing County, Land Use, Noise Mitigation, Port Of Seattle, Sea-Tac Communities PlanFolderart
  • 2022-06-08

    Replacement Initiative Application Form (RI-1): San Francisco International Airport Residential Sound Insulation Program

    The San Francisco International Airport (SFO) Replacement Noise Insulation Initiative offers free repair or replacement of failed acoustical improvements—such as windows, doors, and ventilation systems—for eligible residential properties previously treated under SFO's Noise Insulation Program. To qualify, a property must fall within the 65-decibel CNEL noise contour on the SFO Noise Exposure Map, and failures caused by neglect or improper maintenance are not covered. Homeowners can apply by submitting the RI-1 application form via email or mail to C. Kell-Smith & Associates, Inc.
    TagsAvigation Easement, Noise Mitigation, Port Packages, San Francisco International Airport, SFO, Sound InsulationFolderPort Packages
  • 2022-05-30

    Port Package Program Photo — May 2022

    TagsNoise Mitigation, Port Packages, Sea-Tac AirportFolderPort Packages
  • Masonic Home of Des Moines, Washington (Now Landmark on the Sound)

    The image shows the Landmark on the Sound facility, a large historic building with red tile roofs, an American flag, and a clearly visible sign reading 'Landmark on Sound.' This property is located near Renton, Washington, in the Sea-Tac Airport noise impact area and has been associated with discussions about airport noise mitigation and land use planning.
    TagsDes Moines, Historic Preservation, Land Use, Noise Mitigation, Sea-Tac AirportFolderDes Moines

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Upcoming Events

  • 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

    [...]

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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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