TagPort Of Seattle(1845)

In September 2019, the City of Des Moines responded to a Port of Seattle apology letter regarding the allocation of $10 million for Sustainable Airport Master Plan (SAMP) design work without prior environmental review or stakeholder notice, which had prompted Des Moines and other nearby cities to temporarily suspend participation in the Sea-Tac Stakeholder Advisory Round Table (StART). The City challenged the Port's claims of meaningful progress on noise reduction measures, requesting specific data on the Late Night Noise Limitation program, changes to nighttime flight schedules, and the status of runway glide slope adjustments. The exchange highlights ongoing tensions between Sea-Tac Airport and surrounding communities over transparency, environmental compliance, and the effectiveness of collaborative noise mitigation efforts.

In September 2019, the Port of Seattle announced two new programs to reduce late-night aircraft noise at Seattle-Tacoma International Airport. A revised Runway Use Agreement with the FAA took effect on September 4, limiting use of the Third Runway (16R/34L) between midnight and 5 a.m., while a new voluntary Late Night Noise Limitation Program encourages airlines to schedule flights during less noise-sensitive hours or switch to quieter aircraft during the same period. Both initiatives stemmed from recommendations by the Sea-Tac Airport Stakeholder Advisory Round Table (StART).

In August 2019, the City of Burien formally suspended its participation in the Sea-Tac Advisory Roundtable (StART), citing the Port of Seattle's decision to advance airport expansion designs before completing required environmental reviews, a lack of transparency, and a feeling that community concerns were being ignored. The letter raises serious questions about noise abatement, slow sound insulation programs, air quality impacts extending miles beyond the airport, and the exclusion of nighttime engine run-up mitigation measures recommended as far back as 1996. Burien called on the Port to engage in an honest discussion about how much airport growth is sustainable given the health and quality-of-life impacts on surrounding communities.

In August 2019, the Burien City Council sent a formal letter to the Port of Seattle's Executive Director and Commissioners raising nine pointed questions about Sea-Tac Airport's noise management failures, including the lack of updated noise studies since 2002, slow implementation of sound insulation for affected homes, unaddressed air quality concerns, and the exclusion of meaningful community input. The letter argues that the Port has prioritized airport expansion and profits over the health and quality of life of surrounding residents for more than 20 years. The Council calls for an honest, open dialogue about how much airport growth is truly sustainable given its ongoing environmental and community impacts.

In August 2019, the City of Burien sent a draft letter to the Port of Seattle raising eight pointed questions about Seattle-Tacoma International Airport's handling of aircraft noise, air quality, and community impact. The letter challenges the Port's failure to conduct comprehensive noise studies since 2002, its slow implementation of sound insulation programs, and its prioritization of airport expansion planning over legally recommended noise mitigation measures. Burien officials conclude that the Port has not treated compatibility with surrounding communities as a genuine priority, citing decades of unaddressed recommendations dating back to a 1996 Expert Arbitration Panel report.

The Seattle-Tacoma International Airport (Sea-Tac) Part 150 Noise and Land Use Compatibility Study, approved by the Port of Seattle Commission in October 2013 and later by the FAA, aims to identify and reduce aircraft noise impacts on surrounding communities. The study developed noise exposure maps for 2013 and projected 2018 conditions, evaluated air traffic control procedures, and considered land use controls to limit noise-sensitive development in high-noise areas. Sea-Tac is recognized for having one of the most comprehensive airport noise reduction programs in the nation, with measures including a 'fly-quiet' program and sound insulation assistance for affected residents.

The Highline Forum held a public meeting on July 31, 2019, at Highline College in Des Moines, Washington, focusing on the FAA Part 150 Aviation Noise Program and the South King County Fund, both related to managing aircraft noise impacts around Seattle-Tacoma International Airport. Port of Seattle staff presented updates on community engagement, environmental funding, and noise mitigation efforts, with additional time for public comment and discussion of emerging issues. The forum also announced two upcoming 2019 meetings scheduled for September 25 in Tukwila and November 20 in Des Moines.

This July 2019 briefing presented to the Highline Forum outlines Sea-Tac Airport's sound mitigation efforts under the FAA's Part 150 program, a voluntary federal framework that helps airports address noise and land use conflicts while qualifying for up to 80% federal grant funding. Sea-Tac's program, which began in 1985 and has undergone three updates (most recently in 2014), has involved extensive public outreach including workshops, city council presentations, and community forums. The briefing highlights that Sea-Tac Airport has been actively working to reduce aviation noise impacts on surrounding communities for more than 30 years.