TagThird Runway(1092)

This map presents the concept design for the Auburn wetland mitigation site as part of the Port of Seattle’s Wetland Mitigation and Habitat Conservation Umbrella Bank Prospectus. The figure shows five delineated wetlands (A through E) along the Green-Duwamish River, with proposed enhancements including wetland re-establishment, buffer enhancement, upland enhancement, and re-routed ditches. The site

This brochure, published by the Regional Commission on Airport Affairs (RCAA), argues against the Port of Seattle's 'Flight Plan' proposal to add a third runway at Sea-Tac International Airport. It highlights existing noise burdens on South End communities—where jet noise already averages 65 Ldn and reaches up to 105 decibels—and warns that the expansion would add 120,000 more flights annually by 2020, consuming 12% of residents' daily lives with jet noise. The document cites health experts and a renowned noise specialist, Dr. James Chalupnik, to advocate for alternative solutions such as remote airports and high-speed rail instead of expanding the urban airport.

This pamphlet from the Regional Commission on Airport Affairs (RCAA) opposes a proposed third runway at Seattle-Tacoma International Airport, arguing that construction costs alone could exceed $500 million and balloon to $1.2 billion when mitigation and interest are included. Economists cited in the document warn that the true total cost could approach $2 billion when factoring in school insulation, declining property values, and other indirect impacts on surrounding communities. The RCAA contends that taxpayers and airline passengers would bear up to 92% of the cost while receiving a runway that generates less than 1% return on the public's investment.

This community newsletter from the RCAA (Residents for a Cleaner Airport Area) outlines how Highline-area communities near Seattle's Sea-Tac Airport have held the Port of Seattle accountable for noise, water pollution, and runaway construction costs on a proposed third runway. Key victories include a $150 million noise-mitigation settlement for Highline schools, a court-ordered halt to third-runway construction due to unmet environmental permit requirements, and improved water quality in local streams. The document urges residents to stay engaged, warning that the Port continues to pursue runway expansion despite being $3 billion in debt and facing ongoing legal and environmental challenges.

This campaign mailer from the Washington Alliance of Taxpayers and Travelers (WATT) opposes the Port of Seattle's plan to build a third runway at Sea-Tac Airport, calling it a billion-dollar 'boondoggle' that would take four years to construct and burden the region with overwhelming truck traffic. The group warns that the project would require moving 26 million cubic yards of dirt via 2,000 trucks per day through neighborhoods across the Puget Sound region, and that taxpayers could face property tax increases of over 60% if airline fees fall short of covering costs. Residents are urged to contact the Port of Seattle and mail in an attached postcard to oppose the runway expansion.