Runway project to get more scrutiny – updated forecasts show sea-tac might be busier than initially predicted January 10, 1997 | News Tribune, The (Tacoma, WA) Author/Byline: Al Gibbs; The News Tribune | Page: A1 | The Port of Seattle will conduct a rare supplemental environmental assessment of its third runway project at Seattle-Tacoma International Airport. The investigation, expected to last about a month, comes in the wake of updated Federal