UNSPSC 30131500: Blocks

UNSPSC 30131500 Blocks is a Class code that covers precast concrete and modular block units used in infrastructure repair, utility construction, and building work. State and local governments procure these materials for sewer and water line rehabilitation, roadway curb and gutter replacement, retaining walls, and ancillary concrete structures. Recent solicitations show both direct material supply and integrated construction services in which blocks form a component of broader infrastructure projects. Issuing bodies span county sanitation districts, city public works departments, state cooperative purchasing vehicles, and municipal construction authorities. Santa Clara County Sanitation District No. 2-3, Santa Clara County Public Works, the City of Pittsburgh, the City of Torrington, and the State of Utah have all posted activity under or near this code in the past four months.

Activity concentrates in California and the Mid-Atlantic, with secondary presence in Connecticut. Representative recent opportunities include Santa Clara County Sanitation District No. 2-3's Structural Defect Repair Project Phase 2 (ITB, due September 17, 2026), which specifies removal and replacement of sanitary sewer mainline and extensions with precast concrete sanitary sewer manholes and PVC pipe; Santa Clara County's Central Expressway Pavement Rehabilitation Project (ITB, due May 21, 2026), which calls for Portland cement concrete curb, gutter, curb ramp, and sidewalk installation; the City of Pittsburgh's Modular Block Wall Construction (ITB 2024-IFB-003, closed April 29, 2024), which procured Dura-Hold modular retaining wall units with excavation and foundation work across 47 line items on a time-and-materials basis; and the City of Torrington's Auxiliary Building at Torrington Middle-High School (ITB, closed May 19, 2026). The State of Utah's NASPO ValuePoint cooperative purchasing RFP for walk-in building supplies (RFP AS26-68, due September 10, 2026) establishes a master agreement available to member states.