NIGP 75056: Lightweight Aggregate, All Types

NIGP 75056 Lightweight Aggregate, All Types, Item code, covers sand, crushed rock, riprap, and specialty aggregates that state and local governments procure for road maintenance, capital construction, and infrastructure repair. Recent solicitations show public works departments, counties, and special districts purchasing these materials for pavement rehabilitation, street maintenance, erosion control, and structural repairs—both as supply contracts and as components within larger construction projects.

Counties and municipalities dominate activity under this code. Collin County, Texas has issued multiple IFBs for cement-treated base, cement-stabilized backfill, asphaltic concrete, and aggregate for surface treatments, all tied to TxDOT specifications. Jackson County, Missouri and Clackamas County, Oregon are sourcing aggregate sand and rock products on as-needed bases with multi-year terms. The City of Detroit and City of Tampa have each posted RFQs and ITBs for stone, sand, slag, and landscape materials supporting public works and parks operations. Rankin County, Mississippi is procuring crushed limestone and riprap through an interlocal cooperation structure that extends pricing to participating municipalities. School districts and special districts appear less frequently; Pinellas County School District solicited fencing and gate installation (a downstream end-use, not the aggregate procurement itself), while Sanitation District No. 2-3 in Santa Clara County embedded aggregate specifications within a sewer infrastructure rehabilitation ITB. Boulder County Parks and Open Space Department and the City of Tampa Parks & Recreation Department both target landscape and erosion-control aggregates for property maintenance and capital projects over multi-year vendor rosters.

Activity concentrates in Texas, California, Florida, Michigan, Colorado, Mississippi, Missouri, and Oregon. Collin County's multiple 2026 procurements (IFBs 2026-278, 2026-279, 2026-280) represent the most active single buyer in recent filings. Jackson County, Missouri (sand supply, November 3, 2026 due date) and Clackamas County, Oregon (rock products on as-needed basis, three-year term starting January 1, 2027) show typical county supply-contract structures. The City of Temple, Texas budgeted $120,000 for aggregate base with dual primary and secondary vendor awards; the City of Tampa estimated $60,000 for landscape and construction materials with SLBE bid-discount preference and two one-year renewal options. Collin County's asphaltic concrete procurement (IFB 2026-280, July 16, 2026 response) projected $3 million annual value across eight geographic zones, reflecting the scale of road-maintenance aggregates in Texas county procurement. Boulder County's May 27, 2026 short-list SOQ for landscaping and erosion-control materials operates on a tiered model where projects over $10,000 trigger competitive quotes from all pre-qualified vendors, with no minimum purchase guarantees.