Denver International Airport construction (1989-1995)
Denver's new airport, meant to replace Stapleton International, was budgeted at $1.7 billion and ballooned to $4.8 billion. The automated baggage system failed in repeated tests, delaying the opening 16 months.
The airport opened in February 1995 with a manual baggage system; the automated system was abandoned entirely in 2005.
Denver International became a major hub and one of the busiest US airports, but the episode remains the standard example of airport megaproject cost and schedule overruns.
LAX's ATMP is a multi-billion-dollar airport build with a hard Olympic deadline. Denver shows how cost and schedule overruns can compound when new systems don't perform as designed.
