• 2025-01-01

    Seattle-Tacoma International Airport Sound Insulation Repair and Replacement Pilot Program: Assessment Technical Report

    ★ 32
    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.
  • 2026-07-25

    Ep #38 Aviation Forum Postgame (Raw!)

    What if the solution to decades of airport noise and community impacts has been hiding in plain sight all along? In this open letter to city managers across airport communities, we revisit a landmark yet largely forgotten document: the Sea-Tac Communities Plan of 1976. Built on the Port of Seattle's promise — *"As we do better, you'll do better"* — this collaborative plan was supposed to be the long-term answer for neighborhoods living under the flight path. So why has it been reduced to little more than an expensive property buyout program? The answer reveals a critical gap that neither elected officials nor community advocates can fill alone. Real, lasting solutions require sustained professional commitment to airport community planning — something that should have been established 50 years ago. If you work in city management, this episode speaks directly to you and the unique role only you can play in finally delivering on that broken promise.
  • 2026-07-08

    Ep #37 Dear City Managers

    What if the solution to decades of airport noise and community impacts has been hiding in plain sight all along? In this open letter to city managers across airport communities, we revisit a landmark yet largely forgotten document: the Sea-Tac Communities Plan of 1976. Built on the Port of Seattle's promise — *"As we do better, you'll do better"* — this collaborative plan was supposed to be the long-term answer for neighborhoods living under the flight path. So why has it been reduced to little more than an expensive property buyout program? The answer reveals a critical gap that neither elected officials nor community advocates can fill alone. Real, lasting solutions require sustained professional commitment to airport community planning — something that should have been established 50 years ago. If you work in city management, this episode speaks directly to you and the unique role only you can play in finally delivering on that broken promise.
  • 2026-06-28

    Ep #36 Orphans

    **Discover why environmental progress stalled for airport communities while cars got cleaner** Ever wonder why your car's emissions have dramatically improved over decades, but aviation seems stuck in the past? In this eye-opening episode of The Airport Communities Podcast, we explore the fascinating tale of two environmental paths that diverged after 1970. While Washington Senator Scoop Jackson spearheaded NEPA—one of the largest expansions of environmental policy in American history—and California secured game-changing carve-outs in the Clean Air Act that led to massive air quality improvements, aviation somehow got left behind. Despite Boeing being headquartered in Washington, aviation environmental standards never caught up. UW Meteorologist Cliff Mass delivers some stark perspective: those two annual flights to Europe generate more greenhouse gases than most people produce in their entire homes over a year. Meanwhile, Boeing's monopoly status has eliminated market incentives for cleaner technology. This wasn't an oversight—it was intentional. Today, every airport community continues paying the price for decisions made decades ago that exempted aviation from automotive-level engineering standards.
  • 2026-06-05

    Acoustical Testing Results for SIRRPP — June 2026

    This technical memorandum from Harris Miller Miller & Hanson Inc. (HMMH), dated June 5, 2026, presents the results of interior sound insulation testing conducted in April 2026 for 30 homes near Seattle-Tacoma International Airport as part of the SEA Repair and Replacement Program. Acoustical engineers measured how well each room in these homes reduces outside aircraft noise, finding that only 4 of the 30 structures met the FAA's minimum threshold of 45 decibels of interior noise to qualify for sound insulation treatments. An additional 16 homes had at least one room exceeding that threshold, suggesting potential benefit from window and door upgrades, though current FAA policy does not require treatment based on individual room results alone.
  • 2026-05-04

    Acoustical Testing Results for SIRRPP — May 2026

    Harris Miller Miller & Hanson Inc. (HMMH) conducted sound insulation testing at 30 homes near Seattle-Tacoma International Airport (SEA) in March 2026 to measure how much aircraft noise penetrates indoors. The study found that none of the 30 homes exceeded the FAA's 45-decibel interior noise threshold required to qualify for sound insulation treatments under current federal policy. However, nine homes had at least one individual room where interior noise levels surpassed 45 decibels, suggesting those specific rooms could benefit from upgraded windows or doors.
  • 2025-12-18

    Port of Seattle Response to Burien on SIRRPP Dec 2025

    The Port of Seattle responds to Burien's City Council regarding its Sound Insulation Repair and Replacement Pilot Program, explaining that the $5 million program targets homes insulated before 1993 that still measure at or above 45 dB DNL interior noise levels. Of 262 eligible homes in the highest noise zones tested so far, only 5 qualified for repairs, suggesting older insulation packages are still performing acoustically. The Port plans to expand testing to 209 additional homes in early 2026 and may access FAA grants covering up to 80% of design and construction costs.
  • 2025-10-10

    Acoustical Testing Results for SIRRPP — October 2025

    In September 2025, acoustical engineers tested 29 homes near Seattle-Tacoma International Airport to measure how much aircraft noise penetrates indoors. The study found that none of the homes exceeded the 45-decibel interior noise threshold required to qualify for federally funded soundproofing treatments, though 10 homes had at least one room above that level. The findings are part of SEA's Repair and Replacement Program, which evaluates whether previously soundproofed homes need updated windows and doors.
  • 2025-10-09

    City of Burien letter to Port Of Seattle Commissioners regarding failed noise insulation packages

    The City of Burien sent this October 2025 letter to Port of Seattle Commissioners demanding a new, Port-funded program to repair or replace failed noise insulation packages installed in roughly 9,400 homes near Sea-Tac Airport since the mid-1980s. The city criticizes the Port's existing pilot program (SIRRPP) as inadequate, noting that none of the 30 homes evaluated qualified for repair or replacement and that many affected homes fall outside the boundary eligible for federal funding. Burien urges the Port to stop relying on federal or state dollars and instead model a solution after San Francisco International Airport's locally funded approach.