The Boise Airport Terminal Expansion involved constructing a three-story terminal building to replace a two-story building, in addition to a two-level roadway system, an expanded air carrier apron and additional parking. The old terminal remained operational until Layton’s completion of Phase I of the project.
The new terminal building includes baggage handling, baggage claim areas, ticket lobby, central rotunda, airline operations offices, airport administration and support areas, and mechanical and electrical service areas.
The terminal design is reminiscent of Idaho's outdoor beauty, with architectural design elements symbolizing flowing rivers, river rock, mountains and a stone masonry exterior.
Because of the nationwide push for increased airport security measures, Layton worked through a number of unexpected security-related change orders imposed by the federal aviation and homeland security agencies. The resulting terminal became the most modern and advanced airport facility in the country at the time.