Hensel Phelps will construct a 1 million-square-foot terminal that will allow the airport to serve more than 13 million passengers annually, according to the builder. Alongside it is a new 5,000-person parking structure and seven new gates, according to the project’s information page. Once work is complete, the old terminal will be demolished.

The terminal’s design incorporates biophilic elements like tree-shaped steel columns and a long-span roof inspired by Pittsburgh’s hills, according to New York-based Thornton Tomasetti, the project’s structural engineer. Locally sourced timber and energy-efficient glazing contribute to the airport’s goal of reducing greenhouse gas emissions by 20% by 2028.

Design features include two levels and a mezzanine, two airline lounges, international passenger processing areas and shopping and dining locations.

The airport completed the first phase of its current overhaul in February. Phase 2 includes reworking Concourse A, adding more gates to Concourse D, expanding transportation infrastructure around the airport and modernizing the bag handling system, according to the news release.

In August, Balfour Beatty broke ground on a $140 million pedestrian walkway and skybridge that will include moving sidewalks, escalators and elevators to connect Terminal B to Concourse B, according to a news release from the Sacramento County Department of Airports. The walkway will be an alternative to the airport’s existing automated people mover and feature three major public art pieces representing a $2.5 million investment.

Work includes a new international terminal to replace the current Terminal B and enhancements of Terminal C. It also will incorporate ongoing modernization projects at the airport, including the replacement of the airport’s AirTrain system with an automated system. The project will take a phased approach to minimize the impact on airport operations.