To keep pace with rapidly increasing passenger volumes at the Calgary International Airport (YYC), an additional large parking structure and elevated roadway extension was completed. Designed by the same team behind the 2001 parking expansion, the new 7-level structure has helped to satisfy demand for covered parking stalls. The above grade, open-air structure features two large precast concrete entry and exit spiral ramps, extra overhead clearances at all levels and was designed for future horizontal expansion. Sustainability and passive security features were incorporated into the design of the precast in multiple ways, including 18 meter clear span 3.66 meter wide precast pre-topped double tees to help maximize unobstructed views of the parking decks, site line view holes through precast shear walls, glass enclosed exterior precast stairwells to maximize day lighting and security, and extra floor to floor height to further enhance natural day lighting into the interior parking bays. Site selection and parking layout were designed to accommodate current parking practices, user friendliness, as well as potential future uses such as tour bus staging, car rental operations, pay-on-foot parking and future parking structure and airport terminal expansions.