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Seattle-Tacoma International Airport Noise Programs

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Port of Seattle
Highline Forum
Highline Forum 2013

Seattle-Tacoma International Airport operates several noise programs aimed at reducing the impact of aircraft noise on surrounding communities, including sound insulation, flight track monitoring, and community land-use planning. A key component is the Part 150 Noise Study, which makes the airport eligible for federal grants and focuses on areas within the 65 decibel Day Night Level (DNL) contour, without imposing flight restrictions or shifting noise to other neighborhoods. The program also includes an updated Noise Remedy Boundary that has been expanded beyond the previous boundary to better reflect projected future noise contours around the airport.

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Port of Seattle presentation on Sea-Tac Airport noise programs, including Community Programs (sound insulation, flight track monitoring, community relations, community land-use compatibility planning) and the Part 150 Noise Study. The Part 150 study provides eligibility for Federal Grants, is limited to areas within the 65 DNL contour, and does not impose restrictions on airports or shift noise/flight patterns. Includes an Updated Noise Remedy Boundary map showing the 2018 Future Noise Contour, Current Noise Remedy Boundary (green), and Updated Noise Remedy Boundary Draft (orange), covering areas including Des Moines, SeaTac, Normandy Park, Burien, Tukwila, and King County.

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