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Aggregate Base Course (Caltrans)

Perfect For

Road construction Driveway base Parking lot subbase Pathway foundation Structural fill

Aggregate Base Course - Caltrans Specification

Aggregate Base Course meeting Caltrans specifications is a high-quality blend of crushed stone, gravel, and sand engineered for use as a foundational layer in road and pavement construction. Manufactured to strict standards, this material ensures optimal compaction, stability, and load-bearing capacity, making it a preferred choice for projects requiring compliance with California Department of Transportation (Caltrans) guidelines.




The Caltrans attribute signifies that the aggregate meets rigorous gradation, durability, and cleanliness requirements, resulting in a base material that resists shifting and settlement under heavy traffic. This makes it ideal for use beneath highways, streets, parking lots, and airport runways, as well as for residential driveways and walkways where long-term performance is critical. The well-graded composition promotes excellent compaction and drainage, reducing the risk of surface cracking and water-related damage. While its engineered properties may make it less decorative than other aggregates, its reliability and strength are unmatched for structural applications.

Applications & Uses

  • Road construction Recommended
  • Driveway base Recommended
  • Parking lot subbase Recommended
  • Pathway foundation Recommended
  • Structural fill Recommended

Frequently Asked Questions

What is Aggregate Base Course used for?
Aggregate Base Course is commonly used for Road construction, Driveway base, Parking lot subbase, Pathway foundation, Structural fill.
Where can I get Aggregate Base Course?
You can order Aggregate Base Course for delivery from Hello Gravel. We deliver bulk aggregate materials directly to your site with transparent pricing and no hidden fees.

Get Aggregate Base Course Delivered

Order online and get it delivered — often in as soon as 2 business days.

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