This Government Contract opportunity from Colorado was posted on June 18, 2026. The submission period has ended. Browse the details below for market research, or find similar active opportunities.

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Aggregate Base Course Installation

Closed

State & Local

Submission Closed06/18/2026, 04:00:01 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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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.

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POSTED

17 days ago

DEADLINE

in 13 days

AI Contract Overview

This contract involves the supply and placement of Class 6 aggregate base material to be used as a sub-base for road construction. The project is managed by the Colorado Department of Transportation (CDOT) and will take place in Jefferson. It is categorized under NAICS code 423320, indicating it relates to building materials and supplies dealers. The contract is a subcontract opportunity with a posted and response deadline of June 18, 2026. The work requires delivering and properly installing the aggregate base course material, which serves as a foundational layer for road pavement. This contract aims to support infrastructure development by ensuring a stable and durable sub-base is established. Although no specific office contact or set-aside type is indicated, interested parties can access further details and submit proposals through the CDOT bidding portal.

General Info

Supply and placement of Class 6 aggregate base for Jefferson road sub-base, deadline June 18, 2026.

Agency

Colorado → CDOTView Agency

NAICS

423320 - Brick, Stone, and Related Construction Material Merchant WholesalersView NAICS

Place of Performance

Jefferson, CO, USA

Set-Aside

NONE

Documents

This scope was carved out of C25543.

The full solicitation package (4 documents), including the RFP, is on the prime solicitation, not on this scope.

View the prime solicitation

Call 004 C25543

AI Contract Breakdown

Uniform Contract Format

No contract breakdown available.

Cannot generate Contract Breakdown because no documents were found from this contract's source.

Timeline

PhaseClosed

PostedJun 18

subcontract

Response DeadlineJun 18

Deadline has passed

Submission Closed

06/18/2026, 04:00:01 PM UTC

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Organization & Contact Information

AgencyColorado → CDOT

ContactsNo contacts available

OfficeN/A

Organization / Agency

Colorado → CDOT

View Agency Profile

Office AddressN/A

ContactsNo contact information available

Full Description

Supply and placement of Class 6 aggregate base material for road sub-base.

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