#2 Crushed Stone in California

Around a structure, #2 Crushed Stone gives the ground a coarse mineral cover rather than a dense finished layer. The stone is angular and washed, with no fines left among the pieces. Open spaces remain between the rock, allowing water to move through during the wet season instead of collecting within a fine-filled surface.

For drainage swales or areas near structures, keep this material as the drainage layer below larger stone when a layered installation is planned. That use suits California projects where non-combustible ground cover is wanted near buildings and water still needs a route through the stone. It can also serve at construction entrances and around culvert work, but its loose, open character means it is not the right choice when the goal is a smooth finished driving surface.

Construction Entrances

At the road connection, use a deep layer of angular rock to help keep soil from being carried onto the street by truck tires.

Culvert & Ditch Lining

Place heavy rock at culvert outlets and in ditches where concentrated runoff could displace smaller material.

Heavy Base Layers

Install it as the bottom layer for farm roads, equipment areas, and weak ground, with finer aggregate placed above it.

Drainage Courses

The open voids between pieces allow high flows to pass through and move away from the site.

Stays Put

Its large, heavy rock pieces are less prone to moving or forming ruts under vehicle traffic.

Open-Drain Rock

This washed, fines-free stone leaves open voids that let water pass through.

Bridges Soft Ground

Angular, oversized rock distributes weight over wet or weak subgrade.

Low Maintenance

After placement, upkeep is usually limited to adding material occasionally.