Gravel, Stone and Soil for San Bernardino County, CA
What should you put under a new driveway or patio in San Bernardino County? For most jobs, Class 2 base. California Rock Supply delivers gravel, stone and aggregate delivery in San Bernardino County, CA, and orders run online by the ton or yard. Ground here shifts fast, from the sandy fans around Victorville and Hesperia to expansive clay in the Inland Empire valleys near Fontana and Ontario. That difference decides what you order.
Ground conditions across San Bernardino County
The county spans three ground zones, and each one changes how you build. In the Inland Empire valleys and the coastal plain edge, soils run from Top Soil to clay, with expansive clay in many basins. That clay swells when wet and shrinks and cracks when dry, so an under-built base moves under slabs and paving. Excavate and compact Class 2 base in lifts, and keep water away from the edges.
Out in the desert, around Victorville, Hesperia, Apple Valley and Adelanto, soils are mostly sandy and gravelly on alluvial fans and washes. Water moves through them quickly. Rain is scarce but arrives in short, intense bursts, and runoff pours off bare rock into washes and across fans and roads. Plan drainage first here, because flash floods scour washes and road crossings.
In the mountain towns, including Big Bear City, Big Bear Lake, Wrightwood and Lytle Creek, soils are thin and rocky over granite, volcanic or metamorphic rock. Winter storms bring rain and snow, and melting snow keeps ground wet into spring. Freeze-thaw is a real design factor, with freezing nights routine through winter. The working window is late spring to fall, since snow and frozen or saturated ground stop most base and excavation work.
Materials delivered in San Bernardino County
Class 2 base is the standard California base material here, and it is what most drives, parking pads and paver, slab and DG bases are built on. Locally it is specified by Caltrans Standard Specifications Section 26 as Class 2 or Class 3 aggregate base, in a 3/4 inch or 1-1/2 inch maximum grading. Class 2 is the higher-strength grade; Class 3 is lower strength. The spec also allows processed reclaimed asphalt and concrete, which is why recycled Class 2 base is widely sold.
Choosing the right material
Neighbours make the choice clearer. Los Angeles County sits in Southern California like San Bernardino, and it spans the same coastal plain and inland valley ground plus desert and mountains. The ground is similar, so the base decision is the same. Inyo County is desert only, sandy and gravelly on fans and washes, with slow-draining silty clay on old lake beds. There, drainage stone matters more than base depth.
Kern County is broader still, running from the Central Valley floor to Sierra foothills, desert and mountains. A San Bernardino job on expansive clay needs a compacted Class 2 base and controlled drainage. A Kern job on valley floor ground or an Inyo job on a sandy fan can lean harder on clean drain rock and rip rap for runoff control.
Delivery across San Bernardino County
Order online and pick your quantity by the ton or by the yard. If you are unsure how much a pad or drive needs, the calculator sizes the load for you before you check out. Then choose a delivery date at checkout, and a dump truck brings the material to your site. Have your spot clear for the truck to dump.
Delivery covers San Bernardino, Fontana, Ontario, Rancho Cucamonga, Victorville, Rialto, Hesperia, Chino, Upland, Chino Hills, Apple Valley, Redlands, Highland and Yucaipa. For a bulk delivery, have the dump area clear and reachable, and know where you want the pile placed. Keep gates wide enough for the truck and mark any sprinkler heads, meters or soft ground.
Order Class 2 base and landscape rock for your San Bernardino County job
Start with Class 2 base for drive, pad and patio work, then add the drainage stone, Stone Screenings or soil your site needs. Order online by the ton or yard, size the load with the calculator, and pick your delivery date. Build your load for San Bernardino County and place your order with California Rock Supply.