This Government Contract opportunity from Michigan was posted on July 21, 2026. The submission period has ended. Browse the details below for market research, or find similar active opportunities.

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Materials Supply – Aggregate Base

Closed

State & Local

Submission Closed08/05/2026, 06:00:00 PM UTC

Contract Overview

Solicitation details, issuing organization, response deadlines, documents, and interested companies for this government contract opportunity.

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NAICS: 423320

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SUPPLY AND DELIVERY OF AGGREGATE MATERIALS TO RIVERSIDE COUNTY LANDFILLS

Solicitation # WMARC-489

The County of Riverside Department of Waste Resources is soliciting quotations for the supply and delivery of various aggregate materials, including crushed rock, base, and gravel. These materials are required for the Badlands and Lamb Canyon landfills, as well as potentially thirty-three closed or inactive sites and other jobsites throughout Riverside County. Specific materials requested include clean unwashed crushed rock for gas wells and roads, crushed rock for road base, larger crushed rock for wet weather pads, and washed gravel for erosion control sandbags. The County also seeks pricing for Class II, Class III, or Crushed Miscellaneous Base for roadway applications, with the option for a washed surcharge if required. The procurement process began with the release of the request on August 25, 2026, and includes a non-mandatory pre-bid meeting via Microsoft Teams on September 8, 2026. Interested bidders must submit all questions through PublicPurchase.com by September 14, 2026, and final quotations are due by September 24, 2026. The contract is expected to be awarded to the lowest bidder meeting all specifications, with a tentative effective date of February 1, 2027.

County of Riverside

POSTED

18 days ago

DEADLINE

in 12 days

AI Contract Overview

The contract titled Materials Supply – Aggregate Base solicits the provision of crushed stone or gravel specifically for use as a sub-base layer, with strict requirements regarding gradation and compaction to ensure structural integrity and performance. The materials must meet engineered specifications to support future pavement layers, and suppliers are expected to deliver consistent, high-quality aggregate that complies with applicable industry standards for density and particle distribution. The solicitation is issued as a subcontract under NAICS code 423320, which pertains to construction material merchant wholesalers, indicating the procurement is part of a broader infrastructure project. The posting date is July 21, 2026, with responses due by August 5, 2026, at 6:00 PM. The place of performance covers various locations across Michigan, meaning deliveries may be required at multiple job sites throughout the state. The contract is managed by DTMB, the Michigan Department of Technology, Management and Budget, and interested vendors must submit their offers through the designated state procurement portal linked in the notice. There is no designated set-aside or preferred vendor classification, and the contract does not specify additional reporting or certification requirements beyond material compliance and delivery logistics.