Item No. 8a_supp
Meeting Date: July 10, 2018

Condominium Sound Insulation
Project

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Eligibility
• Project was identified in the 2014 Part 150 Noise and Land Use
Compatibility Study
- Inside the Noise Remedy Boundary
- Built before 1986 in Des Moines, 1987 all other areas
- Must pass an FAA required noise audit to qualify
• 45 dB interior noise level or higher
• Achieve at least a 5 dB reduction with renovations

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Noise Remedy Boundary
(Determines Eligibility)

3 complexes including 240 units potentially eligible
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Project Elements

• No cost to homeowners - paid for by FAA and Airport revenues
• Scope of Work:
-
-
-
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Sound Rated Windows
Sound Rated Exterior Doors
Forced Air Ventilation
May include other items identified by an architect that would reduce noise

• Avigation Easement
- Grants the Port air rights; filed permanently with King County on the parcel
- Required by state law
- Port's asset in exchange for the cost

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Contracting
• Project-specific design contract including
acoustical testing and construction support
• 3 construction contracts (one for each
complex)
• FAA requirements for encouraging DBE
participation
5

Project Funding
• $5,000,000 - Current Request
• $15,000,000 Construction - Future request
• Project is voluntary so some complexes may
not participate
• 80% of eligible costs will be funded by FAA
Grant
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Previously Completed Sound Insulation
• 1985-2017
- 9400 Single-Family Homes
- One Private School
- One Convalescent Center
- Two Places of Worship
- 14 Buildings at Highline College
- 5 Condominium Complexes, 246 Units
- 8 Schools at the Highline School District (funding assistance)
Approximately $300 Million Spent on Sound Insulation To Date
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Current and Future Sound Insulation
Current
2018-2020
2018-2019

Single-Family sound insulation continues - Approximately 50 homes
Highline School District construction of Des Moines Elementary School

Future
2019-2021
2019-2020
2022-2023
2023

Condominium sound insulation for eligible complexes
Highline School District construction of Highline High School
Apartment sound insulation for 1 pilot project
Places of worship sound insulation of 1 pilot project

Timelines are estimated and depend on FAA & Port funding eligibility
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Condominium Anticipated Project Timeline
For First Complex
2018 Q4
- Finalize procurement and start design visits
2019 Q1
- Obtain Commission authorization for construction contracting and funding
2019 Q2
- Contracting for construction
2019 Q3
- Start construction
2020 Q1
- Construction complete for first complex
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Continued Engagement with Federal Partners
•

Working to ensure continued federal funding for Highline Public Schools noise
insulation

•

Encouraging swift hiring of newly funded FAA community engagement officers

•

Providing technical assistance on Puget Sound Congressional delegation's noise
related legislation and amendments

•

Tracking progress of relevant federal studies and legislation

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Questions?

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