The Sustainable Airport Master Plan Public Meeting held in Des Moines, Washington, on December 7, 2024, focused on the impacts of airport operations on local communities. Residents expressed concerns about increased noise and traffic due to a projected 20% rise in airport operations. Community members emphasized the need for the Port of Seattle to rebuild trust and work closely with local jurisdictions to address these issues.

One key point raised was the inadequacy of the current noise measurement metric, known as DNL. Residents argued that this metric does not accurately reflect their daily experiences with aircraft noise. They suggested using additional metrics that are easier for the community to understand, such as the number of airplane overflights per day, especially during nighttime hours. This approach would help residents grasp the potential impact on their quality of life.

The meeting also highlighted the importance of developing effective mitigation plans. Participants urged the Port to collaborate with Des Moines officials to identify specific strategies to reduce noise and traffic congestion. They stressed that mitigation should not merely be a formality but should genuinely address community concerns.

Local leaders, including city council members, participated in the discussion, raising questions about funding for mitigation efforts and the inclusion of significant road expansions in the planning process. The Port confirmed that it would fund the necessary mitigation measures as part of the project.

As the meeting concluded, attendees were encouraged to submit their comments and concerns in writing. The city provided resources for residents to express their views effectively, ensuring that community voices are heard in the ongoing planning process. The meeting underscored the need for continued engagement between the Port and local communities to foster a sustainable and cooperative approach to airport operations.