FY27 3/4" Aggregate Material

Ada County Highway District (ACHD) is requesting sealed bids for the manufacture and delivery of approximately 10,000 tons of 3/4" aggregate material for road maintenance and infrastructure projects across Ada County, with bids due July 29, 2026 at 3:00 p.m. Mountain Time via the ACHD eProcurement Portal.

The material must comply with Idaho Transportation Department (ITD) Section 703 Aggregate Base specifications, including specific gradation limits (1-inch sieve 100%, 3/4-inch sieve 90–100%, No. 4 sieve 45–65%, No. 200 sieve 3–9%), fractured faces of not less than 75% by weight, and LA Abrasion Loss maximum of 40–50%. The successful bidder is responsible for quality control testing at minimum frequencies of one gradation test per 1,000 tons and one fractured faces test per 1,000 tons, with daily submission of results to the designated ACHD superintendent. ACHD will perform independent Quality Assurance testing at random intervals; material acceptance is based solely on ACHD's QA results. The bidder must provide certified scale tickets for all material produced and maintain detailed production and testing records.

Delivery must be completed by September 30, 2027 to the ACHD Schmidt Pit at 5650 W. Tenmile Creek Road, Kuna, Idaho. Bid security of 10% is required with submission. Upon award, the successful bidder may be required to furnish supply, material, payment, and performance bonds equal to 100% of the total contract value. The contract includes liquidated damages of $500 per calendar day for non-compliance. The contract award may be delayed without penalty for up to 60 calendar days after bid opening. Questions are due July 22, 2026 at 4:30 p.m., with responses provided by July 23 at 4:30 p.m. Bids will be publicly opened via Zoom on July 29, 2026. The successful bidder must execute the agreement within 15 calendar days of the Notice of Award.