Big R Manufacturing is an AISC simple, major, and fracture critical certified steel bridge fabricator located in Northern Colorado. Pedestrian, roadway, detour, modular, and trail bridges are all designed and fabricated in our shop. Multiplate arches, boxes, and other shapes are also available for bridge alternatives and drainage structures. With over 35 years in the business of steel fabrication, Big R Manufacturing can work with you in the design or simply supply one of several pre-engineered bridges. Call Big R Manufacturing for the RIGHT BRIDGE for your project.