Denver Airport -- Architecture Competition and the Fentress Design

Denver Airport -- Architecture Competition and the Fentress Design

The Design Competition

Denver International Airport's distinctive terminal design emerged from a competitive architectural process conducted in the early 1990s. The City of Denver solicited design proposals from architectural firms, seeking a terminal building that would:

• Accommodate DEN's projected passenger volumes
• Create a memorable and distinctive landmark on the open Colorado plains
• Reflect Colorado's landscape and identity
• Incorporate natural light throughout the terminal
• Function efficiently as an aviation hub

The winning design came from C.W. Fentress J.H. Bradburn and Associates -- a Denver-based architectural firm led by Curt Fentress. Fentress's proposal centred on the extraordinary tensile fabric roof system that has become DEN's most recognisable feature.

The Design Intent: What Fentress Said

Curt Fentress has described his design intent in numerous interviews and architectural presentations:

The Rocky Mountains: The 34 white tensile fabric peaks are explicitly intended to evoke the snowcapped peaks of the Rocky Mountains visible from the airport site on clear days. The graduated heights of the peaks mirror the varied elevations of the mountain range.

Colorado tent culture: Fentress cited the canvas tent structures of Colorado's 19th-century settlers -- mining camps, frontier towns, the Chautauqua movement's outdoor assembly grounds -- as a secondary reference. The tensile fabric roof is a technologically advanced version of a culturally specific architectural tradition.

Natural light: The semi-translucent PTFE fabric allows diffused natural daylight to fill the terminal below, reducing artificial lighting costs and creating a pleasant environment for passengers.

Aviation metaphor: The peaks have also been described as evoking the white peaks of jet aircraft wings or the swept forms of flight, connecting the architecture to its aviation function.

The Terminal Layout

The Jeppesen Terminal (named for Denver aviation pioneer Elrey B. Jeppesen) is the main passenger processing building:

• Approximately 900 feet long
• 210 feet wide at its maximum
• The central atrium beneath the tensile roof peaks rises to approximately 100 feet
• The underground A-Train connects the terminal to three concourses (A, B, C)
• Concourse B is the largest concourse in the United States

The concourse layout -- with concourses accessible only via underground train from the terminal -- was unusual for American airports of the era. Most airports of DEN's scale use above-ground connections. The underground train system adds to the airport's underground infrastructure and therefore to its conspiracy profile.

Why the Design Is Often Misread

The tensile roof's appearance changes dramatically depending on weather, light, and viewing distance:

• Under overcast skies, the peaks can appear grey and industrial
• At night, with internal lighting, they glow warmly white
• From certain ground-level angles, the peaks dominate the sky in a way that can feel overwhelming
• The peaks have been described by visitors unfamiliar with the design intent as "alien spaceship docking structures," "rows of white teeth," and "a giant tent for something sinister"

The gap between Fentress's stated design intent (Rocky Mountains; frontier tents; natural light) and many visitors' first impressions (uncanny; overwhelming; not like other airports) has contributed to DEN's mysterious atmosphere.