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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.

TagSea-Tac Airport(1001)

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  • Flight Tracking Map of Seattle Area Aircraft and Blue Angels Flight Path Change

    A real-time flight tracking map centered on the Seattle, Washington metropolitan area showing multiple aircraft in flight, including Alaska Airlines flights AS1304, AS934, and AS347; Delta Air Lines flights DL434, DL1517; Korean Air flight KE41; and several general aviation aircraft (N704ZP, N6040P, N1115U, N718TE, N303LK, N93124, N97662, N94061). A popup identifies a vessel named 'RELIANCE' routing USSEA to USPWT, dimensions 76x26 ft, observed approximately one minute prior to the screenshot.
    Tagsaircraft, Alaska Airlines, Blue Angels, Flight Tracks, Sea-Tac Airport
  • 2023-07-30

    Aircraft noise environment and land use issues near Sea-Tac Airport

    This document outlines several key challenges related to aircraft noise near Seattle-Tacoma (Sea-Tac) Airport. It notes that existing noise measurement systems lack the precision needed by planners, residents, and courts, while federal FAA funds cannot be used to purchase noise-affected lands unless they serve specific airport purposes. Additional concerns include restricted HUD/VA mortgage financing in high-noise areas, the potential negative impact on local tax bases if the Port of Seattle acquires large amounts of noise-sensitive land, and widespread property owner anxiety over declining home values and marketability.
    TagsLand Use, Noise, Port Of Seattle, Property Values, Sea-Tac Airport
  • Sea-Tac Airport Part 150 Update No 1 Spring 1998 Flyer

    TagsFlyer, Part 150, Sea-Tac Airport
  • Sea-Tac Airport Comparison of Air Carrier Operations Forecasts vs. Actuals, 1975–2010

    A scatter plot comparing multiple historical and projected annual air carrier operations forecasts for Seattle-Tacoma International Airport, spanning approximately 1975–2010. The chart overlays actual operations data against projections from sources including 1997 FAA and ACC (Hockaday) projections, the 1992 Flight Plan Project Final EIS, the 1996 Master Plan Update FEIS, the 1987 PSCOG Draft EIS, and several earlier studies dating back to a 1976 Sea-Tac Communities Plan, illustrating how successive forecasts consistently overestimated growth relative to actual operations.
    TagsEIS, FAA, Forecast, Sea-Tac Airport
  • Sea-Tac Airport Taxiway Operations

    TagsSea-Tac Airport, Tango Taxiway, Taxiways
  • ERMA Sea-Tac Salmon Streams

    A screenshot from NOAA's Environmental Response Management Application (ERMA) Pacific Northwest interface, showing a Google-based map centered on the Seattle-Tacoma International Airport (SeaTac) area at zoom level 12, scale 1:108K, at coordinates 47.44792°N, 122.36141°W. Surrounding communities visible include Burien, Tukwila, Renton, Normandy Park, and Des Moines, with overlaid environmental or response-related boundary layers in multiple colors.
    TagsEnvironment, ERMA, Map, Salmon, Sea-Tac Airport
  • Stormwater Retention Pond with Aircraft on Final Approach Near Sea-Tac Airport

    A lined stormwater or noise-mitigation retention pond with a dark geomembrane liner sits in the foreground, with a commercial aircraft visible on final approach overhead. A bridge structure is visible in the background, consistent with infrastructure near a major airport environment.
    Tagsaircraft, Sea-Tac Airport, Stormwater
  • Sea-Tac Airport SDE4 S1 Swale

    TagsSea-Tac Airport
  • Ethylene glycol filter stormwater

    TagsDeicing, Ethylene Gycol, Sea-Tac Airport, Stormwater
  • 2023-07-22

    Fashion update: What Puget Sound will be wearing in the year 2000

    This brochure, published by the Regional Commission on Airport Affairs (RCAA), argues against the Port of Seattle's 'Flight Plan' proposal to add a third runway at Sea-Tac International Airport. It highlights existing noise burdens on South End communities—where jet noise already averages 65 Ldn and reaches up to 105 decibels—and warns that the expansion would add 120,000 more flights annually by 2020, consuming 12% of residents' daily lives with jet noise. The document cites health experts and a renowned noise specialist, Dr. James Chalupnik, to advocate for alternative solutions such as remote airports and high-speed rail instead of expanding the urban airport.
    TagsFlight Plan Project, Noise, RCAA, Sea-Tac Airport, Third Runway

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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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