The Port of Seattle presented an update on the Part 150 Noise and Land Use Compatibility Study to the Highline Forum in May 2024. This federally required study, governed by FAA guidelines, maps aircraft noise contours around Seattle-Tacoma International Airport and identifies areas where noise levels exceed 65 decibels, helping determine which properties qualify for sound insulation and other mitigation measures. Airports that complete an FAA-approved Part 150 Study become eligible to receive federal Airport Improvement Program grants covering 80% of qualifying noise reduction projects.Open full document
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Port of Seattle presentation to the Highline Forum on May 22, 2024, covering the Part 150 Noise and Land Use Compatibility Study update for Seattle-Tacoma International Airport (Sea-Tac Airport). Covers basics of CFR 14 Part 150 FAA study guidelines, Airport Improvement Program (AIP) grant funding for sound insulation and noise abatement, 65 dB Day/Night Level (DNL) noise contours, history of Part 150 studies at SEA, and the new 2024 Part 150 study update. FAA-approved mitigation measures eligible for AIP funding at 80%.