NIGP 75056: Lightweight Aggregate, All Types

NIGP 75056 Lightweight Aggregate, All Types is an Item code that encompasses crushed stone, riprap, chip seal aggregates, and recycled asphalt products delivered to support highway maintenance, road resurfacing, pavement repair, and municipal infrastructure projects across state and local jurisdictions. State and local governments procure these materials through both competitive sealed bids and requirements contracts, typically on unit-price-per-ton bases with delivery or pickup options to service centers, stockpile locations, and job sites. Issuing bodies include county departments of transportation and public works (Collin County, Texas; Santa Clara County, California; Boulder County, Colorado; Rankin County, Mississippi; Barrow County, Georgia; Brevard County, Florida), city public works and parks departments (Detroit, Arlington, Tucson, Tampa), regional purchasing cooperatives (Berkshire Regional Group Purchasing Program in Massachusetts), state DOT procurement offices (Nevada Department of Transportation), and county school districts (Pinellas County, Florida). Counties and municipalities with extensive road networks appear most frequently, soliciting year-round material supply on annual or multi-year requirements contracts.

Recent activity concentrates in Texas, California, Colorado, Nevada, Florida, Massachusetts, Mississippi, and Georgia. Representative recent opportunities include Collin County IFB 2026-279 for cement-treated base and cement-stabilized backfill (bids due July 16, 2026; $600,000 estimated annual value; pickup from McKinney stockpile or delivery within 24 hours); Boulder County competitive sealed bid for approximately 3,300 tons of fractured chip seal aggregate meeting CDOT specifications 703.05 (due April 2, 2026); City of Detroit RFQ 546989 for fine and coarse aggregate materials (MDOT 23A stone, Sand 2NS, and Slag 22A; restricted to Detroit-based certified businesses with equalization credit ranging 1–5 percent depending on certification type); and the Berkshire Regional Group Purchasing Program cooperative procurement for aggregates and loam across 32 Massachusetts municipalities (bids due April 2, 2026; pricing firm through June 30, 2027). Contracts typically include firm unit pricing (per ton or cubic yard), insurance requirements (general liability at $1,000,000 minimum), worker compensation, and compliance with state DOT or local specifications; many include recycled content questionnaires and price adjustment provisions tied to the Producer Price Index at anniversary dates. Vehicle liability, bid bonds at 5 percent, and payment/performance bonds are standard when contract values exceed $25,000–$100,000 thresholds. Delivery windows range from 24–48 hours to 15 working days, with pickup alternatives common for larger orders.