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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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TagArmy Corp of Engineers(122)

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  • 1998-04-15

    EXH AR041627: USDA APHIS Animal Damage Control Letter to U.S. Army Corps of Engineers Opposing New Wetlands Within 10,000 Feet of Sea-Tac Airport Runways

    Letter dated April 15, 1998 from J. Gary Oldenburg, USDA Animal and Plant Health Inspection Service (APHIS) Animal Damage Control, State Director WA/AK/HI/Pacific Islands, to Jonathan Friedman, U.S. Army Corps of Engineers Seattle District, follow-up to public hearing of April 9, 1998. Strongly opposes establishment of any new wetlands within 10,000 feet of runways at
    TagsACC, Army Corp of Engineers, Environmental Impact Statement, FAA, Pollution Control Hearings Board, Safety, Sea-Tac AirportFolderBox 17
  • 1998-04-09

    EXH AR041625: Letter from USDA Wildlife Services to U.S. Army Corps of Engineers Regarding Wetland Mitigation at Sea-Tac Airport

    April 9, 1998 letter from Gary Oldenburg, USDA Animal and Plant Health Inspection Service (APHIS) Wildlife Services State Director for WA/AK/HI/Pacific Islands, to Jonathan Friedman, U.S. Army Corps of Engineers Seattle District, regarding wildlife hazards at Sea-Tac Airport. Argues that wetland mitigation measures at SeaTac Airport should be conducted off-site, citing FAA Advisory Circular 150/5200-33
    TagsACC, Army Corp of Engineers, FAA, Part 139, Pollution Control Hearings Board, Sea-Tac AirportFolderBox 17
  • 1998-04-09

    EXH AR024336: Fisheries Consultants Letter to Army Corps – STIA Third Runway Aquatic Habitat & Fish Impacts, Miller Creek

    A 1998 letter from Fisheries Consultants to the U.S. Army Corps of Engineers concludes that SeaTac Airport's proposed Third Runway will have an overall neutral effect on aquatic habitat and fish populations in Miller Creek. Minor benefits are expected from new storm flow detention facilities, which will reduce peak flood flows by 5–20%, and from a planned 100-foot-wide stream buffer created through residential buyouts along the creek. Adverse impacts are limited to the temporary disruption of a quarter-mile creek relocation and an approximate 8% reduction in late-summer low stream flows due to increased paved surfaces and wetland fill.
    TagsACC, Army Corp of Engineers, EIS, Miller Creek, Pollution Control Hearings Board, Port Of Seattle, Third RunwayFolderBox 10
  • 1998-04-09

    EXH AR035307: Comment Binder A — Third Runway Corps/Ecology Public Comments, December 1997–April 1998

    Comment Binder A compiled by Port of Seattle for Sea-Tac Airport (Seattle-Tacoma International Airport) third runway project, containing letters submitted to the U.S. Army Corps of Engineers during the initial comment period (December 19, 1997 to January 20, 1998) and comments from the joint Corps/Ecology public hearing held April 9, 1998. Includes a January 15,
    TagsACC, Army Corp of Engineers, Environmental Impact Statement, Miller Creek, Pollution Control Hearings Board, Port Of Seattle, Third RunwayFolderBox 15
  • 1997-12-19

    EXH AR041401: US Army Corps of Engineers Public Notice of Application for Permit — Port Of Seattle Third Runway, Sea-Tac Airport

    US Army Corps of Engineers Seattle District public notice of permit application 96-4-02325, filed by Port Of Seattle (contact: Barbara Hinkle, (206) 439-6606) under Section 404 of the Federal Clean Water Act. Proposes filling 7.38 acres of wetlands to construct an 8,500-foot parallel third runway at Seattle-Tacoma International Airport (Sea-Tac), plus 2.34 acres for Runway
    TagsACC, Army Corp of Engineers, Clean Water Act, Miller Creek, Pollution Control Hearings Board, Port Of Seattle, Third RunwayFolderBox 17
  • 1997-09-12

    EXH AR023208: Sediment Characterization Hamm Creek Restoration Project Duwamish Turning Basin

    This 1997 report by Science Applications International Corporation characterizes sediment quality in the Duwamish Turning Basin near Seattle, Washington, as part of the Hamm Creek Restoration Project. It presents results from chemical testing, biological bioassays, and sediment sampling to evaluate contaminant levels and compare them against sediment management standards. The study was prepared for the U.S. Army Corps of Engineers, Seattle District.
    TagsACC, Army Corp of Engineers, Duwamish River, Environment, PCHB, Pollution Control Hearings Board, SeattleFolderBox 10
  • 1996-12-18

    Exhibit 208: Port Of Seattle Section 404 Application Letter — Third Runway Master Plan Update Wetland Fill, Sea-Tac Airport

    In December 1996, the Port of Seattle submitted a Section 404 permit application to the U.S. Army Corps of Engineers to place fill material into wetlands at Seattle-Tacoma International Airport as part of its Master Plan Update, which included construction of a third parallel runway. The proposed runway, located 2,500 feet west of the existing runways, was intended to address severe arrival delays during poor weather conditions, which reduced airport capacity from 60 to as few as 24 arrivals per hour roughly 44% of the year. The application was the result of nearly a decade of regional planning, environmental review, and public involvement, including studies confirming that no feasible supplemental airport sites existed in the four-county region.
    TagsACC, Army Corp of Engineers, Barbara Hinkle, Environmental Impact Statement, Pollution Control Hearings Board, Port Of Seattle, Third RunwayFolderBox 08
  • 1996-12-18

    Section 404 Permit Application: Port Of Seattle to U.S. Army Corps of Engineers for Sea-Tac Airport Third Runway Fill Material

    In December 1996, the Port of Seattle submitted a Section 404 permit application to the U.S. Army Corps of Engineers to place fill material in waters of the United States as part of Sea-Tac Airport's Master Plan Update, which included construction of a third parallel runway. The application explains that the new runway, located 2,500 feet west of the existing 16R/34L runway, was needed to reduce severe arrival delays during poor weather conditions, which were costing airlines approximately $42 million annually. The project was the outcome of nearly a decade of regional planning, including the PSRC's Flight Plan Study, which evaluated numerous alternatives before recommending the runway expansion as the best solution for the region's long-term air travel needs.
    TagsArmy Corp of Engineers, Barbara Hinkle, Permitting, Port Of Seattle, Sea-Tac Airport, Third RunwayFolderThird Runway
  • 1996-12-18

    EXH AR040435: Port Of Seattle Section 404 Application Letter — Third Runway Master Plan Update

    Letter dated December 18, 1996 from Barbara Hinkle, Senior Environmental Specialist, Port Of Seattle, to Jack Kennedy, U.S. Army Corps of Engineers, Seattle District Office, submitting a Section 404 Application to place fill material into waters of the United States at Seattle-Tacoma International Airport associated with the Master Plan Update. Covers background on the Puget
    TagsACC, Army Corp of Engineers, Environmental Impact Statement, Pollution Control Hearings Board, Port Of Seattle, Sea-Tac Airport Master Plan, Third RunwayFolderBox 17
  • 1996-12-01

    EXH AR040251: JARPA Application for Proposed Master Plan Update Improvements at Seattle-Tacoma International Airport

    JARPA (Joint Aquatic Resources Permit Application) and Section 404 application submitted by Port Of Seattle to the U.S. Army Corps of Engineers (Jack Kennedy, Seattle District Office) in December 1996, prepared by Parametrix, Inc. Requests authorization to place fill material into waters of the United States at Sea-Tac Airport associated with the Master Plan Update
    TagsACC, Army Corp of Engineers, Environmental Impact Statement, NEPA, Pollution Control Hearings Board, Port Of Seattle, Third RunwayFolderBox 17

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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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