Bulk Aggregates for Pathways in Discovery Bay, CA

Planning a path, a patio base or a drainage run? California Rock Supply handles gravel and aggregate delivery in Discovery Bay, CA, and the material most of these jobs start with is Class 2 base. Soils here change over short distances, from sandy ground near the shoreline to heavy clay that swells when wet, so the base you set decides how the surface above it holds up.

Order online by the ton or the yard, size the load with the calculator, and pick your delivery date at checkout.

Ground and Conditions in Discovery Bay

A thin base shows itself fast on clay. The path ruts, the pavers rock, and the edges pump when the ground is saturated. Clay soils in the Coast Range valleys crack when dry and swell when wet, so a skim coat of base will not hold a line.

The fix is a thicker, well-compacted lift over the native ground. Most rain arrives from late fall to spring, often in a few large winter storms and atmospheric rivers. That water soaks into sandy ground quickly but sits on clay and runs off slopes, which is exactly why the base has to drain as well as carry.

Late spring into fall is the main window for base, driveway and paver work. Winter rain and saturated clay are what hold jobs up, so lock in the grading and base before the wet season.

Materials for Discovery Bay Projects

Paths and walkways are the jobs that come up here, and the finish material matters as much as the base under it. Start with Class 2 Base, also called Class II base or Class 2 aggregate base. It is the standard California base material, specified by Caltrans as Class 2 aggregate base, and it goes under paths, driveways, parking pads, pavers and slabs.

Recycled base rock, also called recycled Class 2 base, does the same work. It is Class 2 base made from Road Base or asphalt, and Caltrans allows processed reclaimed asphalt and concrete in aggregate base. Some suppliers also call this crushed miscellaneous base, or CMB.

On top of a compacted base, the fines and screenings take over:

• Stone Screenings, or DG, for paths, patios and low-water ground cover. It packs fine and firm over a compacted base.
• Walkway Gravel for paths and garden walks that need a finer, walkable surface.
• Driveway Gravel for surfacing an existing drive or topping a compacted Class 2 base.
• Natural Pea Gravel for play areas, walkways and bedding.

Where a path meets a downspout or a low spot, run clean stone underneath. Drain Rock and 3/4" Drain Rock have no fines, so water moves through instead of ponding under the surface.

Delivery to Discovery Bay and the Surrounding Area

Bulk material is sold by the ton or by the cubic yard, and the two are not the same. Bagged product hides this, but a bulk load does not, so decide which unit you are ordering before you check out.

That is what the calculator is for. Enter the area you are covering and the depth you want, and it returns the quantity in tons or yards for the material you picked. Keep your numbers on hand when the truck is booked.

Then choose your delivery date at checkout. A dump truck delivers to the site and tips the load where you want it. If the truck cannot reach the spot, say so in your order notes and we can work with where the pile lands.

We deliver across Discovery Bay and the rest of Contra Costa County, including Concord, Richmond, Antioch, San Ramon and Pittsburg.

Size the Load, Then Place the Order

Put your path or pad dimensions into the calculator and let it return the tonnage or yardage for the material you chose. That number is what goes into your order, along with the delivery date that suits the job. Ready to get started? Place your order online and we will deliver bulk aggregate to your Discovery Bay site.