TagSea-Tac Airport(1835)

FAA’s Finding of No Significant Impact and Record of Decision for the Sustainable Airport Master Plan Near-Term Projects at Seattle-Tacoma International Airport. The document provides final agency determinations and approvals for federal actions necessary to implement 31 near-term improvement projects addressing efficiency, safety, and passenger processing needs at SEA.

This January 2025 technical report, prepared by Environmental Science Associates for the Port of Seattle, documents a pilot program assessing the condition and effectiveness of sound insulation previously installed in homes near Seattle-Tacoma International Airport. The report covers resident surveys, research into the expected useful life of sound insulation building materials, acoustic testing methods, and test results from selected homes. It aims to inform future decisions about repairing or replacing aging noise-reduction treatments in affected neighborhoods.

This January 2018 report from the Port of Seattle examines the economic impact of Seattle-Tacoma International Airport, which handled an estimated 46.8 million passengers and roughly 425,860 metric tons of air cargo in 2017. The airport directly supported 19,100 on-site jobs and $5.6 billion in economic activity, while generating nearly $22.5 billion in total economic output and 151,400 jobs across Washington state when multiplier effects are included. The report also highlights the airport's role as a critical trade gateway, including the export of Washington-grown cherries to international markets.

A May 2015 presentation to the Washington State Transportation Commission outlines Sea-Tac Airport's Sustainable Airport Master Plan (SAMP), highlighting the airport's rapid growth—37.5 million passengers in 2014, making it the fastest-growing large hub airport in the U.S. The plan addresses future expansion projects including the NorthStar Alaska Hub and a new International Arrivals Facility. It also details the airport's environmental stewardship efforts, such as reducing air emissions through electric ground equipment, renewable natural gas buses, LED lighting upgrades, and earning North America's first airport Carbon Accreditation Certification.

This Airport Key Map, published by the Port of Seattle on June 15, 2014, provides a general reference overview of property zones surrounding Seattle-Tacoma International Airport. It identifies distinct areas including the Airfield, Terminal, Commercial, South of Airfield, South of 200th, and North of Airfield zones, and distinguishes between Port of Seattle property, lease boundaries, non-Port property, land available for redevelopment, and the proposed SR 509 corridor. The aerial photo, taken in Spring 2012, is intended for general reference only and is not approved for navigation use.

This Final Supplemental Environmental Impact Statement (FSEIS) evaluates proposed updates to the Master Plan for Seattle-Tacoma International Airport, examining the effects of revised aviation demand forecasts on runway capacity, safety improvements, and landside facilities. It analyzes a range of alternatives to address poor-weather airfield performance, runway length needs for Pacific Rim flights, and runway safety area compliance with FAA standards. The document also assesses environmental consequences including noise impacts on surrounding communities, air quality, wetlands, and construction effects.

The 1988-2020 Regional Airport System Plan, published in October 1987, outlines policies for managing and developing public-use airports across King, Kitsap, Pierce, and Snohomish counties through the year 2020. A central finding is that Sea-Tac Airport was projected to reach full capacity within 10 to 15 years, with intolerable aircraft delays expected unless alternative measures were taken. The plan also addresses noise and flight track mitigation programs, land use compatibility near airports, and the potential role of satellite airports such as Paine Field, Bremerton National, and Tacoma Narrows in relieving pressure on Sea-Tac.

This 1981 airspace study, prepared by Peat, Marwick, Mitchell & Co., examines how the shared use of airspace between Seattle-Tacoma International Airport (Sea-Tac) and King County International Airport (Boeing Field) affects the capacity of both airports. The two-phase study analyzes projected congestion and delays through the year 2000 and evaluates operational and policy alternatives to reduce airspace conflicts. A public information program was also included to keep the community informed of the study's findings and implications.