Sound Insulation StART Briefing April 2021

4. New FAA policy for homes insulated prior to 1993 Noise Mitigation Accomplishments • Sound Insulation Completed • Began in 1985 • Approximately 9,400 homes • 9 Highline Schools • 5 condominium complexes, 246 units • 14 buildings on the Highline College Campus • Acquisition Completed • 5 mobile home parks, 359 mobile home units • 69 homes north of the 3rd runway • 1,400 single family homes including 3rd runway acquisition • Approximately $300 million spent on sound insulation • Approximately $100 million spent on acquisition programs Project Funding • FAA Airport Improvement Program (AIP) Grant Funded – 80% of eligible costs (direct acoustical) – 20% airport match • Airport funds all non eligible costs through other sources of revenue. SEA Noise Remedy Boundary Based on 65 DNL Noise Contour Sound Insulation Requirements • Homes must be built prior to 1986 in Des Moines and 1987 in all other areas – building codes meet or exceed FAA standards after these dates • Homeowners are required to sign an avigation easement • Homes with mortgages must obtain a subordination agreement from their lender(s) • Homes must have a 45dB DNL or greater interior noise level during a noise audit to be eligible Ongoing Sound Insulation Programs Single-Family Sound Insulation • Began in 1985 • Over 9,400 Single-Family homes completed • Approximately 140 homes remain eligible – 39 homes in process • Continuous outreach to get remaining homes into the program • Goal of completing 10 or more homes in 2021…

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PSCAA Advisory Council Meeting Agenda
Add to CalendarMWednesday Mar 11, 9:00am - 11:35am
1904 3rd Avenue, Suite 105, Seattle, WA 98101
Call to order – Roll Call – Quorum Established – Land Acknowledgement We would like to acknowledge that our Agency operates in four present-day counties, which are the traditional lands of the Coast Salish people, past and present. This acknowledgement does not take the place of authentic relationships with indigenous communities in our jurisdiction and [...]