TagThird Runway(1092)
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2020-08-11Miller Creek Culvert Replacement, Fish Passage and Stream Restoration
★The Port of Seattle Commission is being asked to approve an $800,000 contribution to the City of Burien for the Miller Creek Culvert Replacement and Stream Restoration project, which aims to fix failing culverts near Sea-Tac International Airport that threaten protected wetland mitigation sites. The project will divert Miller Creek, replace a deteriorating culvert under Des Moines Memorial Boulevard, and construct fish-friendly culverts along 450 feet of restored stream habitat on Port property. Beyond protecting the Port's Clean Water Act permit compliance, the project delivers broader environmental benefits by removing the largest fish barrier on Miller Creek and creating a continuous, passable stream corridor through the watershed. -
2013-10-15
Informal Runway Use Agreement (Appendix I 2013 Part 150 Study)
★ 32Appendix I from the 2013 Part 150 Study by Landrum & Brown. A Letter Of Agreement (LOA) where the Port Of Seattle agrees to using the Third Runway primarily for overflows and bad weather. Note the very official looking signature of the Port CEO, Tay Yoshitani. Also note that it is described as an ‘informal -
1997-02-01Sea-Tac International Airport impact mitigation study: Initial assessment and recommendations
★ 32The HOK Study. 1997 initial assessment and recommendations report for the Sea-Tac International Airport Impact Mitigation Study, prepared by Hellmuth, Obata + Kassabaum and Raytheon Infrastructure Services. The study was funded by a State of Washington grant on behalf of the cities of Burien, Des Moines, Federal Way, Normandy Park, and Tukwila, as well as -
1996-03-27Final Decision on Noise Issues – Expert Arbitration Panel’s Review of Noise and Demand/System Management Issues at Sea-Tac International Airport
★In March 1996, an Expert Arbitration Panel reviewed whether the Port of Seattle had met noise reduction requirements set by the Puget Sound Regional Council as a condition for approving a third runway at Sea-Tac International Airport. A majority of the Panel concluded that, despite the Port's extensive noise abatement programs, it had not demonstrated a sufficient reduction in real, on-the-ground noise impacts to satisfy Resolution A-93-03. This decision left the noise condition as the sole remaining hurdle for authorizing the third runway's construction. -
1996-01-01Resolution No. 3212, as amended
★ 32Resolution No. 3212, adopted by the Port of Seattle in 1996, approved the construction of a new third runway at Seattle-Tacoma International Airport (Sea-Tac) to address growing air traffic demand and reduce delays caused by poor weather conditions. The resolution followed years of regional studies, environmental impact reviews, and public involvement, including findings that no feasible alternative airport sites existed in the four-county area. It also committed the Port to fulfilling additional noise reduction measures as required by Puget Sound Regional Council Resolution A-96-02. -
1994-10-27Resolution No. EB-94-01: A resolution of the Executive Board of the Puget Sound Regional Council, Seattle, Washington
★ 32In October 1994, the Puget Sound Regional Council's Executive Board formally approved moving forward with a third runway at Seattle-Tacoma International Airport, concluding that no feasible sites existed for a supplemental airport in the four-county region. The resolution affirmed that the third runway would meet regional air capacity needs through 2030, provided it satisfied noise and demand management conditions and passed environmental review. The Board also recommended that the State develop legislation to compensate communities impacted by essential public facilities and explore long-term transportation alternatives, including high-speed rail. -
Auburn Wetlands
Environmental mitigation at its best and worst To build the Third Runway, the Port of Seattle proposed to fill all or parts of some 12 separate wetlands across the Miller Creek, Walker Creek, and Des Moines Creek watersheds–every one of them a class AA water, the highest protection provided by the state. FAA grants are -
2026-07-30
Southwest CEO says Sea-Tac spending more than promised
In pitching his case for moving flights to Boeing Field, Southwest Airlines chief Gary Kelly aimed two powerful punches last week at the… By Alwyn Scott In pitching his case for moving flights to Boeing Field, Southwest Airlines chief Gary Kelly aimed two powerful punches last week at the Port of Seattle over its management -
Third Runway Decision Process (PSRC)
You can’t follow the game without a program Financing the Third Runway was unlike any other airport expansion–including the SAMP. In order to obtain federal funding, the Port was required to obtain an elaborate set of approvals from a regional agency most people are unfamiliar with–the Puget Sound Regional Council. In the broadest possible strokes, -
Sea-Tac-Airport-Final-EIS-Feb.-1996-Vol
This page is from the Executive Summary of the Sea-Tac Airport Master Plan Update Final Environmental Impact Statement (EIS), discussing noise mitigation strategies including sound insulation, noise budget limits, nighttime limitations, flight corridorization, and land acquisition in the Approach Transitional Area. It estimates acquisition and relocation costs for approximately 309 residential homes and multi-family buildings at roughly $35 million, referencing an FAA Memorandum dated April 30, 1991.