Port presents remedies for Sea-Tac Airport noise

The Port of Seattle held a public open house at Sea-Tac International Airport on April 9, 2011, to present feasibility-stage proposals for reducing airport noise affecting surrounding communities. Mitigation options under consideration included building a hush house to muffle engine run-ups, installing air conditioning in uninsulated single-family homes within the updated 65 DNL noise boundary, providing sound insulation for multi-family and mobile homes, and assisting local jurisdictions with long-term land-use planning. The Port planned to submit its recommended solutions to the FAA by the end of 2011, after which the FAA would conduct a 180-day review to determine which measures it would help fund.

Notes

Highline Times news article by Ty Swenson, April 15, 2011, covering a Port Of Seattle open house held at Sea-Tac Airport on April 9, 2011, presenting noise mitigation proposals to surrounding communities. Port noise study manager Stan Shepherd explained the DNL (day-night average noise level) metric and the 65 DNL sound contour boundary. Mitigation proposals include a hush house for engine run-ups, air conditioning/sound insulation for single-family homes, multi-family sound insulation, avigation easements for mobile/manufactured homes, and long-term land use planning assistance. Arlene Brown of Normandy Park quoted criticizing the DNL approach. FAA 180-day review of proposals expected by end of 2011. Also contains separate articles on Des Moines building height/marina district design guidelines and a Japanese preschool fundraiser.

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