Completed in 2017, the expansion of the Terminal 3 tunnel includes a 995-foot passenger circulation corridor underneath the tarmac. Our mechanical design provides two zones of comfort cooling and smoke control through a new air handling unit and VAV system within the tunnel. We also designed a new chilled water supply and return line from the T3 central plant that delivers chilled water to the new and existing northeast wing of the D Gates’ air handling units. The low voltage design for this expansion includes IT design services for three new IDF rooms, door security, and CCTV security.


Las Vegas, NV

Project Size

Approx. 30,000 SF


Electrical, Fire & Life Safety, Mechanical, Plumbing, Security, Telecom


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Professional engineering services in the state of New York, Michigan, and North Carolina are provided by HNY Consulting Engineers.