The 2,000-foot Taxiway U overpass is planned for Phoenix Sky Harbor International Airport to allow planes to go over airport roads to get to runways on either the north or south airfields.

Phoenix Sky Harbor International Airport (PSHIA) Crossfield Taxiway U Design Development

Our Client’s Challenge

Phoenix Sky Harbor International Airport (PSHIA) is one of the nation’s busiest airports, serving more than 120,000 passengers on more than 1,200 daily flights, and has an economic impact of more than $38 billion annually. Owned and operated by the City of Phoenix, the airport is undergoing a series of upgrades as the city continues to grow and regional air traffic increases. PSHIA is looking to further improve aircraft flow and airfield operations.

Our Solution

Gannett Fleming is leading design development and program support services for the new Crossfield Taxiway Uniform (Taxiway U), which consists of a new taxiway on the west side of the airport connecting Taxiway Charlie (Taxiway C) on the north to Taxiway Delta (Taxiway D) on the south. Taxiway U will be 2,000 feet long and 214 feet wide, accommodating a 75-foot-wide taxiway, 30-foot-wide shoulders, and taxiway safety areas.

The centerline-to-centerline separation between Taxiway U and future Taxiway Victor (Taxiway V) will be set at the Group V separation of 298 feet, complying with Group V FAA Aircraft Standards. The project is funded, in part, through the Infrastructure Investment and Jobs Act (IIJA).

Several roadway design phases are scheduled to accommodate Taxiway U and the proposed Taxiway V, including a three-span continuous bridge structure for each taxiway, with extended shoulders for utilities and incident management. Roadway alignments and profiles will accommodate future airport development, including:

Construction projects are also planned for the West Air Cargo area, parking lot modifications, and a new ground-service equipment storage area northeast of Cargo Building A.

Key Features

  • New Taxiway U to connect with Taxiways C and D.
  • Realignment of Sky Harbor Boulevard and Buckeye Road.
  • Reconstructed employee parking lot and storage yard.

Awards & Recognition

  • Awards. Web part is hidden.


  • Supports PHX Sky Harbor’s objective of net zero carbon by 2040.
  • Planes and passengers spend less time in transit to the gates, enhancing operational efficiency.
  • Improved ground operations safety.
  • Augmented airfield operations.
  • Increased overall passenger access to and from the airport.


City of Phoenix


Phoenix, Ariz.


Design, Program Support

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