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Aggregate Base Course (3/8″, Idot, Ca-70)

Perfect For

Road base Driveway subbase Pathway foundation Parking lot base Structural fill

Aggregate Base Course - IDOT CA-70, 3/8” Size

Aggregate Base Course with the IDOT CA-70 specification in a 3/8" size is a high-quality crushed stone blend designed for use as a stable foundation layer in construction projects. Manufactured by crushing and screening durable stone, this material meets Illinois Department of Transportation (IDOT) standards, ensuring consistent gradation and performance.




The 3/8" size offers a fine, compactable texture that provides excellent load-bearing capacity and stability, making it ideal for use beneath pavements, driveways, sidewalks, and patios. Its smaller particle size allows for tighter compaction, reducing voids and creating a solid base that resists shifting and settling. The CA-70 attribute ensures the material is well-graded, promoting optimal drainage while maintaining structural integrity. This aggregate is favored for both residential and commercial applications where a reliable, long-lasting base is essential. While its fine size enhances compaction, it may not be suitable for applications requiring rapid drainage or larger void spaces.

Applications & Uses

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

Frequently Asked Questions

What is Aggregate Base Course used for?
Aggregate Base Course is commonly used for Road base, Driveway subbase, Pathway foundation, Parking lot base, Structural fill.
What size is Aggregate Base Course?
Aggregate Base Course typically ranges in size from 3/8".
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.

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