San Diego International Airport - Terminal 1

PSSI provided concrete construction services for San Diego International Airport’s Terminal 1 redevelopment, working with Turner Construction as part of the Turner–Flatiron project team. The phased redevelopment replaces the original terminal with a modern, 30-gate facility and includes improvements to airport access, circulation and supporting infrastructure.

PSSI constructed the foundations and slab-on-grade for Phase 1A of the new Terminal 1 at San Diego International Airport. PSSI crews placed about 31,850 cubic yards of concrete beside an active international airport, without interrupting airline operations. The work included 20,000+ cubic yards of concrete for the foundations, 400+ anchor bolt assemblies, the heaviest weighing 20,000 pounds, and 340,000 square feet of slab-on-grade. 

The centerpiece was the baggage handling, Checked Baggage Inspection System (CBIS), in the basement and its connected tunnels. Because the water table is shallow, the basement sits on auger-cast piles, pile caps, and a 12-inch structural mat slab, all fully wrapped in waterproofing. Groundwater pressure also pushes the tunnels upward, so reinforced concrete hold-down beams over the tunnel roofs tie them down to pile-supported caps. Each waterproofed element followed by a strict sequence: rat slab, waterproofing, protection slab, then structural concrete.