Highway Systems Incorporated is an AISC Certified Steel Fabricator located in the state of Florida. We manufacture steel sign structures, sign arms, bridge mounts, custom brackets, multi-post assemblies, and all types of miscellaneous steel fabrication. We are D1.5 certified and can provide your company with Quality Steel products whether it is custom or plan designed. We look forward to providing you with a quality product and great customer service. At Highway Systems Inc. our customers are our number one priority. We manufacture the below products and Other custom steel projects: Overhead Cantilever Sign Structures ( Galvanized & Painted Options Available ) Overhead Truss Sign Structures ( Galvanized & Painted Options Available ) Bridge Mount Structures Galvanized Steel Adjustable Sig