St. Louis-based McCarthy Building Cos. recently began construction of the $326 million concourse in Terminal 3 at Phoenix Sky Harbor International Airport in Arizona, the construction firm announced on April 7

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PHX Sky Harbor Terminal 3 is getting an 4,332 BTC upgrade. Here's what's new

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[Work begins](https://www.constructiondive.com/news/mccarthy-phoenix-airport-terminal-3-construction/745111/)

St. Louis-based McCarthy Building Cos. recently began construction of the $326 million concourse in Terminal 3 at Phoenix Sky Harbor International Airport in Arizona, the construction firm announced on April 7