• 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.
  • 2025-01-01

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

    Assessment Technical Report for the Seattle-Tacoma International Airport (Sea-Tac Airport) Sound Insulation Repair and Replacement Pilot Program (SIRRPP), prepared by Environmental Science Associates (ESA) for Port of Seattle, January 2025. Covers comprehensive homeowner survey outreach (postcards, survey letters, assessment website, Part 150 Study kickoff meetings), research on building materials expected useful life for sound insulation
  • 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.
  • Port of seattle response to Burien on SIRRPP December 2025 page 2

    A signed letter from Commissioner Toshiko Hasegawa, Commission President of the Port of Seattle, describing the Sound Insulation Pilot Program's progress, including FAA-approved Airport Improvement Program funding eligibility, acoustic testing results for pre-1993 insulated homes near SEA, and plans to expand outreach to 209 remaining homes in the Noise Remedy Boundary with additional testing planned for early 2026.
  • 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.
  • 2026-06-05

    Acoustical Testing Results for SEA Repair and Replacement Program

    Technical memorandum from Harris Miller Miller & Hanson Inc. (HMMH), authored by Eric Cox, to Julie Kinzie at Seattle-Tacoma International Airport (SEA), dated June 5, 2026. Reports acoustical testing results for 30 residential structures in the SEA Repair and Replacement Program conducted in April 2026. Measures median interior Day-Night Average Sound Level (DNL) using Noise
  • 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.