Synterra, Ltd. was responsible for the site and landscape design of US Airways International Terminal One at Philadelphia International Airport.

Situated among natural wetlands, the site was designed to capture the essence of the original landscape while functioning as a gateway to the airport building complex. To create a natural environment, indigenous plant material created a smooth transition from the adjacent wetlands to the dramatic gateway entrance -- a woody slope with a tumbling rockscape and colorful herbaceous plants simulates a landmark waterfall in the Wissahickon area.

Directly in front of the building, planting beds with native material were arranged in a more formal manner to compliment and soften the building facade. Trees, shrubs, ornamental grasses and perennials were chosen to provide color and seasonal interest.

Elsewhere, extensive use of meadow grasses provides an informal "undesigned" appearance that is practically maintenance-free.