Designed by Gensler, the expansion invoved construction of a new 160,000 square foot terminal, expanded security checkpoints and a sky bridge between the terminal and parking.
The design of the new terminal roots its inspiration to the natural beauty and resources of Maine. The terminal has extensively used timber, which is a rare element in airport architecture. The facility was built to embrace several sustainable elements, which consist of natural daylighting, FSC-certified glue laminated structural timbers, and low-maintenance, polished concrete floors.
The project has installed the state's largest geothermal system at the airport, which consist of 120 wells, which are 500 feet deep. The geothermal well assists the building to offset fuel costs by $150,000 a year.
The newest terminal of the airport is the second commercial airport in the US to be accredited with LEED certification.