As part of the company’s regional expansion initiative, Kwik Trip built several gas stations across Wisconsin and Minnesota. Each project included the construction of a car wash bay, using hollowcore plank manufactured by County Prestress. Hollowcore was specified for its ability to maintain structural integrity in damp, high-moisture environments. The prestressed planks were also favorable for creating open spans that allowed equipment to be installed on all sides of the bay with adequate vehicle clearance. County Prestress successfully manufactured and delivered 8-inch depth hollowcore plank and beams and columns to 12 Kwik Trip jobsites. Each location had unique design considerations, requiring hollowcore quantities varying from 1,600 to 3,000 SF.