Statewide Delivered Rock Salt for FY2027

The Iowa Department of Transportation is soliciting competitive sealed bids to supply and deliver rock salt for the FY 2027 winter season across the state’s DOT garages, cities, counties, and other political subdivisions. The contract is for one year (through May 31 2027) with an optional one‑year renewal, and quantities are estimated only; actual purchases will depend on weather, usage, and funding. Deliveries are FOB Destination, must meet ASTM D632‑12 specifications, and many locations impose specific truck‑type restrictions (end‑dump only or no end‑dump). Bidders must provide insurance, tax‑exempt documentation, and agree to price‑parity across Iowa agencies. • Provide rock salt (≥95 % NaCl, ≤2 % moisture, anti‑caking agent 50‑250 ppm) meeting ASTM D632‑12 Type 1, Grade 1. • Deliver estimated tonnage ranging from a few dozen tons to several thousand tons per line item; total statewide demand likely exceeds 100,000 tons. • Must issue invoices within Net 60, include fuel surcharge line items, and meet strict delivery timelines (15 business days after order, with advance notice).