NIGP 75089: Slag

NIGP 75089 Slag, an Item code, describes aggregate and mineral byproducts that state and local governments procure primarily for infrastructure construction and rehabilitation projects. Based on recent solicitation activity, the code encompasses materials used in pavement work, concrete operations, and site preparation — including hot mix asphalt overlay, partial depth recycling operations, and concrete curb and gutter installation where slag or similar mineral aggregates serve as feedstock or stabilization material. Santa Clara County has emerged as an active buyer under this code, issuing multiple infrastructure rehabilitation solicitations that incorporate material procurement alongside labor and equipment services. The issuing bodies for this code span county transportation and sanitation departments managing capital improvement programs in unincorporated service areas.

Santa Clara County, California dominates recent activity. The county posted an Invitational To Bid (ITB) on August 26, 2026 for the County Sanitation District No. 2-3 Structural Defect Repair Project Phase 2, with responses due September 17, 2026, covering sewer mainline rehabilitation in the eastern foothills that includes pipe removal and replacement work. Earlier, Santa Clara County released an ITB on April 29, 2026 for the Central Expressway Pavement Rehabilitation Project between Bowers Avenue and Scott Boulevard, with bids due May 21, 2026, specifying partial depth recycling, hot mix asphalt overlay, PCC curb and gutter installation, and related pavement improvements across a 142-working-day performance window. Both solicitations require physical bid submission to the County Clerk of the Board of Supervisors at the County Government Center in San Jose.