Cobble and Bulk Aggregates for Newark, CA

Winter storms drive the work here. Rain arrives in a few big pushes, soaks into sandy ground fast, then sits on clay and runs off slopes. California Rock Supply delivers gravel and aggregate delivery in Newark, CA, and the material that answers that runoff is coarse stone.

Start with riprap for slope, swale and bank protection. Then build the rest of the job on Class 2 base, the standard California base material.

Materials for Newark Projects

Order by size. Coarse stone armors and drains. Fine material compacts and finishes. Match the size to the job and the load does the work.

Riprap, also called rock slope protection, is the heaviest option. Place it on creek banks, culvert outlets and steep slopes where winter runoff hits hard. Caltrans calls placed rock on slopes rock slope protection, and that is how it gets specified locally. Use RipRap where water needs to slow down and the ground needs to hold.

Below that, drainage stone keeps water moving instead of pooling. 3/4" Drain Rock is clean stone with no fines, so water passes straight through French drains and drainage trenches. Drain Rock handles drywells, downspout runs and the drainage layer behind a retaining wall. For heavy trench bottoms and construction entrances, step up to #4 Crushed Stone.

For swales and dry creek beds, rounded stone slows runoff and looks finished. Large River Rock and River Cobble both work in a channel, and cobble suits borders and low-water beds.

Then the base. Class 2 Base, also called Class II base rock or Class 2 aggregate base, is the compacted layer under driveways, parking pads, pavers and slabs. It is specified by Caltrans as Class 2 aggregate base. Recycled Class 2 base made from Road Base or asphalt does the same job.

Fine material finishes the surface. Stone Screenings, or DG, packs firm for paths and patios over a compacted base. Washed Sand levels and beds under slabs, and Top Soil rebuilds planting areas over heavy clay.

Delivery to Newark and the Surrounding Area

Order online and pick your delivery date at checkout. Choose your quantity by the ton or by the yard, and use the calculator to size the load before you submit it. A dump truck then delivers to your site.

Coverage runs across Alameda County. Along with Newark, we deliver to Oakland, Fremont, Hayward, Berkeley and San Leandro. If your site sits on a tight residential street, tell us where the truck should drop the pile so it lands where you can move it.

Ground and Conditions in Newark

Soils change over short distances here. Sandy dune and beach soils sit along parts of the shoreline. Heavy clay soils that crack when dry and swell when wet are extensive in the Coast Range valleys and hills.

That split decides your base depth and your drainage layer. On clay, water sits on top and the subgrade moves, so a clean drainage layer and a well compacted Class 2 base matter more. On sand, water drains quickly and compaction is the whole game.

Time the work to the dry season. From late spring into fall, base, driveway and paver jobs go in cleanly. Summer fog near the shore is normal and does not stop anything. Winter rain and saturated clay are what hold jobs up, so plan your delivery date around the forecast.

Questions Newark Buyers Ask

What stone should I use for drainage in Newark?

Use clean, washed stone with no fines so water moves through it. 3/4" Drain Rock is the usual pick for French drains and drainage trenches, and Drain Rock covers drywells, downspout runs and the layer behind a retaining wall. For heavy trench bottoms, use #4 Crushed Stone. On clay ground, pair the stone with a compacted Class 2 base above it.

What should I have ready when the truck arrives?

Clear the drop spot and mark it. A dump truck needs room to back in and a firm surface to stand on, so move vehicles, trailers and bins out of the way first. Point out overhead wires and low branches. If the pile goes on the street, have any permit ready. Then confirm the quantity you ordered matches the space you cleared.

Order Coarse Stone and Base for Newark

California Rock Supply delivers riprap, drain rock, Class 2 base and more to Newark and the rest of Alameda County. Pick your material, size the load with the calculator, and choose a delivery date at checkout. Place your order online and we will get the truck out to your site.