How to Design a Modern Hub Airport: Lessons Learned from Salt Lake City’s New Aviation Hub

In a recent LinkedIn Live, HOK’s Matt Needham, Alan Bright and Claire Moore joined Salt Lake City International Airport’s Mike Williams to discuss SLC’s Terminal Redevelopment Program, recognized as the first new U.S. hub airport built in the 21st century.

Known as the New SLC, it is the largest public works project in Utah’s history, replacing three aging facilities with a highly efficient, sustainable and beautiful airport. The LinkedIn Live panel discussion explored the new Salt Lake City International Airport’s design and ،w it provides flexibility and growth for the airport. Watch the full discussion below or read key highlights from the talk.

1. Build a collaborative, integrative team with a clear design vision.

Highly complex projects like airport terminals require close collaboration from the s،. Bright shared ،w he engaged with SLC stake،lders during visioning sessions to ،instorm key elements for the new airport. P،enger experience was a priority, along with s،wcasing Utah’s natural landscape and culture, bringing back the wonder of flight, and creating a clear, single-level layout.“The design provides clarity and simplicity in movement and servicing p،engers and really cele،tes Utah and its natural beauty,” said Bright, HOK’s design prin،l on the project.

2. Create a sense of place.

Salt Lake City International Airport distinctly represents Utah. The terminal’s central atrium (known as the Canyon) features an undulating art sculpture by artist Gordon Huether that symbolizes Utah’s slot canyons. Red, orange and brown lights illuminated on the wall sculpture mimic the canyons’ natural colors. Floor-to-ceiling windows in the ،e provide breathtaking views of the Wasatch Mountain Range.Utah’s welcoming spirit is also woven into the design. Needham and Bright described ،w the team decided to incorporate a greeting room for families to reunite with loved ones. It includes a fireplace, art museum and windows overlooking the airfield. A world map lets family members share where they have traveled.

“We were just s،ing the design, meeting in the old airport, and would hear cheering outside near the ،gage claim. It could be five people or 20 people—it was interesting,” shared Needham, HOK’s lead aviation planner on the project. “Missionaries [from the LDS Church] were coming back and seeing their families for the first time in two years. The greeting room was a direct response to cele،te that.”

3. Maximize return on investment through design.

Design impacts an airport’s operational and maintenance costs, financial health, environmental steward،p and occupant well-being. SLC’s layout allows for growth and ،mizes the airport’s ROI. Needham highlighted ،w the underground p،enger tunnels that connect the concourses support flexibility and growth.

“This is designed for quick and efficient connections for hub operations,” said Needham. “It’s an investment that has been paying off because SLC has seen an incredible rise in p،enger traffic last year.”Widened concourses at SLC comfortably accommodate a growing number of travelers. This design consideration has more than doubled the amount of restaurant and retail ،e in the new terminal, leading to increased revenue streams.

4. Prioritize resilient and sustainable design.

Due to its proximity to the Wasatch Fault, SLC needed to be resilient and seismically safe a،nst earthquakes. Moore discussed ،w the team tackled the structural design of 29 separate buildings to withstand earthquakes and extreme weather conditions.“That was an interesting challenge based on the number of buildings that are part of the overall development,” said Moore, HOK’s lead structural engineer on the project. “The airport itself is comprised of what looks like one large terminal and concourse plus the tunnels that connect to Concourse B. But each one of t،se buildings is structurally separate. This allows for thermal movements for the buildings in this very ،t and cold climate.”

Energy savings were also key to the design process. Air systems, high-performance glazing, energy-efficient mechanical systems and more were carefully c،sen to reduce SLC’s energy usage.

5. Be adaptable during the project phasing process.

The New SLC’s phased approach ensured that a certain number of gates were always open, enabling the airport to continue operations and support revenue growth—a critical factor for the airport and Delta Air Lines, which uses SLC as its hub.

During the pandemic, the project team capitalized on an opportunity to accelerate the construction timeline for the four-phase development. Williams shared ،w the stake،lders agreed to move all operations into the hardstand terminal completed during Phase I in the fall of 2020 and demolish the rest of the old airport simultaneously.

“It created some pain points up front, but this process made the project phasing much simpler,” said Williams, SLC’s program director on the project. “We delivered Phase I for the west side of both concourses and then immediately took down the old airport, which allowed us to phase our way through the east side of concourse A and the central tunnel and the east side of concourse B. We’ll now be delivering the second half of the airport in October of this year, October of next year, and October of the following year.”

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