One of our subsidiary companies, Johnson Materials Co. in Superior, Wisconsin, is a regional supplier of sand, gravel, crushed rock, and other aggregates for applications in road bed construction, asphalt and concrete production, and industrial site development.

With multiple quarry locations, customized crushing and screening services, WisDOT- and Mn/DOT-compliant products, convenient pick-up or delivery, and a commitment to preserving regional resources and natural beauty, Johnson Materials Co. offers another great advantage to RJS customers.