The extensive use of site precast beams and panels in the construction of Spokane International Airport demonstrates dramatically what can be achieved with this technique. The complex consists of a large circular service building and waiting room with three smaller buildings connected to it by enclosed concourses. The 24 boomerang shaped beams which support the roof of the rotunda are approximately 97 feet long. Three wood casting beds for these beams were erected on a 12 inch thick concrete apron at the airport. The beds were built on scaffolding and the completed casting beds, each of which held 12 or 13 forms, looked much like ski jumps. The beams were cast in pairs, and after 24 hours of curing the side forms were removed and placed for another pair. Side forms were of resawn fir to give the finished beams direction and texture. Finger buildings are of panels precast on site. Fifty-six bents erected in pairs span 30 feet with a cantilevered overhang over corridors. Thirteen wall panels were also precast on site for the rotunda.