FLI Structures designs, manufactures, and installs steel structures and foundations including screw piles and steel grillages to support highway signage. They provide either a civil-only package or a complete turnkey solution. Screw pile foundations do not require concrete or wet trades, saving time and money by reducing materials and labor. Single screw pile columns or steel grillages supported by multiple screw piles are options that can be installed quickly in a single shift with less traffic management.