This 1997 Federal Aviation Administration Record of Decision granted final approval for major development actions at Seattle-Tacoma International Airport, including construction of a new 8,500-foot third parallel runway, a 600-foot extension of an existing runway, and various landside facility improvements planned through 2010. The decision followed years of environmental review, public comment, and regional planning studies aimed at addressing growing passenger demand and significant air traffic delays, particularly during poor weather conditions.Open full document
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This Record of Decision (ROD) provides final FAA approval for the Port of Seattle’s Master Plan Update development actions, including a new 8,500-foot dependent air carrier runway (third runway), a 600-foot extension of runway 16L/34R, expanded runway safety areas, and various landside improvements through 2010. The document covers background on regional aviation planning, alternatives analysis, agency findings, mitigation measures, and formal decisions and orders.