The United States Postal Service processing center was designed to accommodate all mail making ground-to-air connections in New Orleans. The 38,000-square-foot structure houses mail-handling facilities, administrative offices, and a customer service window. Despite the very mechanical nature of what occurs within the building, the simple yet refined design reflects an elegance and sense of permanence.

The exterior of the building is composed of alternating bands of smooth and split-faced concrete block in dual tones of gray that give it an anchored appearance. The horizontal band of the bright yellow metal canopy accents the façade and wraps around the building. In the rear, the suspended canopy is evocative of an airplane hangar and serves as a cover for transport vehicles coming from the apron to deposit or collect mail.