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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.

Tagcapital improvements(26)

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  • 2026-08-28

    Chapter 11 Capital Facilities Element

    Chapter 11 of the City of SeaTac's Comprehensive Plan outlines the Capital Facilities Element, which guides long-term planning for essential public infrastructure and services — including parks, water, sewer, transportation, and public safety — to keep pace with population growth. The element establishes level-of-service standards, coordinates facility delivery with new development, and identifies funding strategies such as impact fees and grants. Note that this document addresses citywide capital infrastructure planning and does not directly cover Sea-Tac Airport noise policies.
    Tagscapital improvements, City Of SeaTac, Comprehensive Plan, local government, ParksFolderComprehensive Plan
  • 11 capital facilities pdf
    2026-08-28

    Chapter 11 Capital Facilities Element

    Chapter 11 of the City of SeaTac's Comprehensive Plan outlines the Capital Facilities Element, which guides long-term planning for essential public infrastructure and services — including parks, water, sewer, transportation, and public safety — to keep pace with population growth. The element establishes level-of-service standards, coordinates facility delivery with new development, and identifies funding strategies such as impact fees and grants. Note that this document addresses citywide capital infrastructure planning and does not directly cover Sea-Tac Airport noise policies.
    Tagscapital improvements, City Of SeaTac, Comprehensive Plan, local government, ParksFolderComprehensive Plan
  • 2026-08-28

    Chapter 11 Capital Facilities Background Report

    This document is Chapter 11 of the City of SeaTac's Comprehensive Plan, serving as a Capital Facilities Background Report that inventories and evaluates city-managed infrastructure including surface water management, transportation, and parks and recreation facilities. It outlines growth assumptions, level of service standards, and financing considerations to guide future capital investment as the city's population grows through 2044. The report does not address SeaTac Airport noise policy.
    Tagscapital improvements, City Of SeaTac, Comprehensive Plan, Parks, transportationFolderComprehensive Plan
  • 11x capital facilities br pdf
    2026-08-28

    Chapter 11 Capital Facilities Background Report

    This document is Chapter 11 of the City of SeaTac's Comprehensive Plan, serving as a Capital Facilities Background Report that inventories and evaluates city-managed infrastructure including surface water management, transportation, and parks and recreation facilities. It outlines growth assumptions, level of service standards, and financing considerations to guide future capital investment as the city's population grows through 2044. The report does not address SeaTac Airport noise policy.
    Tagscapital improvements, City Of SeaTac, Comprehensive Plan, Parks, transportationFolderComprehensive Plan
  • UpgradeSEA map Upgrademain
    2026-04-23

    Upgrade SEA Airport Improvement Map

    An aerial overview of Seattle-Tacoma International Airport annotated with labeled capital improvement projects under the 'Upgrade SEA' program, including C Concourse Expansion, S Concourse Evolution, Concourse A Building Expansion for Lounges, SEA Gateway, Main Terminal Improvements Program, Baggage Optimization, Checkpoint 1 Relocation, Automated Parking Guidance System, Restroom Renovation, Roadway Improvements, Curbside Accessibility and Safety, and SEA Underground Controls Replacement. The Upgrade SEA diamond logo is visible in the lower left corner.
    TagsAirport Expansion, capital improvements, Map, Sea-Tac AirportFolderSea-Tac Airport
  • 2025-10-28

    Airport Capital Spending (2025 $)

    A line graph showing CPI-adjusted airport capital spending in millions of 2025 dollars from 1998 through 2030 (with years 2025–2030 as forecasts), alongside a flat orange reference line representing average real spending from 1998–2024 at approximately $470 million. Spending peaked around 2002–2005 near $800 million, dropped to a low near $125 million in 2012, recovered to approximately $750 million by 2018–2019, and is forecast to peak near $975 million around 2027 before declining.
    CategoriesExplainers TagsAIP, Airport Expansion, Airport Improvement Program, Budget, capital improvements, Forecast, Sea-Tac AirportFolderStatistics
  • 2025-08-12

    Sea-Tac Airport 2025 Capital Expenditures Financial Summary — RM Packet Page 252

    A financial summary table from what appears to be a Seattle-Tacoma International Airport board or budget report (page 252 of 292) detailing 2025 capital expenditures, showing projects including C Concourse Expansion, SEA Gateway, Post IAF Airline Realignment, and others, with total spending of approximately $806.9M forecast against a $816.3M budget. Footnotes explain variances for each major project.
    TagsAirport Expansion, Budget, capital improvements, Port Of Seattle, Sea-Tac AirportFolder2025-Q2
  • 2024-11-14

    Port Of Seattle signatory lease and operating agreement 2025–2034

    This is a draft Signatory Lease and Operating Agreement between the Port of Seattle and participating airlines for the operation of Seattle-Tacoma International Airport, covering the period 2025 through 2034. The agreement outlines the terms under which airlines may use airport facilities including gates, terminals, airfields, baggage systems, and ticket counters, along with the associated rates and fees for each. It also establishes airline rights and responsibilities regarding capital improvements, gate assignments, and facility use at Sea-Tac Airport.
    Tagscapital improvements, Port Of Seattle, Port Of Seattle Commission, Sea-Tac AirportFolderMeetings
  • 2024-09-26

    Des Moines City Council regular meeting agenda – September 26, 2024

    The Des Moines, Washington City Council held a regular meeting on September 26, 2024, covering a range of local government matters including approval of payment vouchers totaling over $3.3 million, municipal court agreements, and a public hearing regarding the Des Moines Creek Business Park West property sale. The council also considered a resolution opposing Initiative Measure No. 2117 on carbon tax credit trading and a resolution supporting Proposition 1, a Public Safety Levy Lid Lift. Note: this agenda does not contain content directly related to Sea-Tac Airport noise policy.
    CategoriesMeetings Tagscapital improvements, city council, City Of Des Moines, local government, Public SafetyFolderDes Moines
  • 2024-07-11

    Des Moines City Council regular meeting agenda – July 11, 2024

    The Des Moines, Washington City Council held a regular meeting on July 11, 2024, covering routine financial approvals totaling over $1 million in vouchers and payroll, as well as public works contracts for a Redondo Restroom Replacement Project valued at approximately $2.35 million. The council also considered naming a Marina District alleyway 'Backstage Alley' and establishing a commemorative street name of 'Waterland Way.' No agenda items specifically related to Sea-Tac Airport noise policy were included in this meeting.
    CategoriesMeetings Tagscapital improvements, city council, City Of Des Moines, Des Moines, local governmentFolderDes Moines

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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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