Class 2 Base, Sand and Gravel Delivery in Yuba County, CA
California Rock Supply handles gravel, stone and aggregate delivery in Yuba County, CA, and the material most orders start with here is Class 2 base. On the valley floor around Olivehurst, Marysville and Wheatland, heavy clay and a cemented hardpan a few feet down stop water from draining away. That ground moves under load, so base depth matters more than most homeowners expect.
Materials Delivered in Yuba County
Class 2 base is the standard California base material, also called Class II base rock or class 2 aggregate base. 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, and it is the common base under drives, pads and pavers.
Recycled base rock is Class 2 base made from Road Base or asphalt, used the same way under drives, patios and slabs. Caltrans allows processed reclaimed asphalt and concrete in aggregate base, which is why recycled Class 2 base is widely sold. Some suppliers list the same material as crushed miscellaneous base, or CMB.
Below is how the sizes run, coarsest to finest, with what each one is good for around here.
Beyond those, you can order Driveway Gravel to surface an existing drive, Drain Rock for drywells and downspout runs, and Fill Dirt to raise grade before the base goes down.
Ground Conditions Across Yuba County
Yuba County spans two ground zones, and each one changes how you build. On the Central Valley floor, deep valley alluvium leaves heavy clay that cracks in summer in the flood basins and along the valley edges. Parts of the valley also have a cemented hardpan a few feet down that stops water moving deeper.
Most rain arrives from late fall to spring in winter storms and atmospheric rivers. On flat clay and hardpan ground, water has nowhere to go and ponds, so drainage has to be built in. Plan a drainage layer under base and sand in low spots rather than counting on the soil to take water.
In the Sierra Nevada foothills and the hills around the northern Sacramento Valley, the ground is different. Soils are rocky and often shallow over bedrock, with clay in many areas and fast-draining Stone Screenings in others. Heavy winter rain runs off quickly over shallow soil and bedrock on slopes, while clay pockets hold water.
Erosion follows the same split. Flat ground carries little hillside erosion; the main risk is high water and bank erosion along rivers, creeks and levees during large winter storms and atmospheric rivers.
Timing follows the seasons too. The valley's long, hot, dry stretch from late spring into fall is the main working window, and dense tule fog can slow early starts. Winter rain that leaves clay soft and sticky is what stops jobs.
Delivery Across Yuba County
You can order online and have bulk material delivered by the ton across the county. Coverage runs through Olivehurst, Marysville, Wheatland, Dobbins and Smartsville, and up into Camptonville, Browns Valley, Brownsville, Challenge, Oregon House, Rackerby and Strawberry Valley.
Sizing a load starts with the job. Measure the area and the depth you want, then convert to tons or cubic yards so the load matches the work.
Lead time depends on the material and where you are. Valley-floor addresses are straightforward, while foothill and mountain roads can take longer to schedule. Ordering ahead of your working window is the simplest way to keep a job moving.
Choosing the Right Material
What you order shifts as you cross into neighbouring counties. Sierra County sits in the Sierra Nevada, with mostly thin, rocky soils over granite, volcanic or metamorphic rock, coarse and sandy where granite has weathered, plus deeper soils on some valley and basin floors between ranges.
Plumas County shares that mountain ground zone, with the same thin, rocky soils and deeper basin floors. There, drainage and slope protection usually lead, while Yuba County jobs more often start with Class 2 base over clay and hardpan.
Nevada County spans two zones: the Sierra Nevada foothills and hills around the northern Sacramento Valley, plus the mountain zone. Where it shares Yuba County's foothill ground, the conditions are similar, so compare typical projects instead. Foothill drives and pads in both counties usually want the same base and drainage approach.
Order Class 2 Base and Aggregate in Yuba County
California Rock Supply delivers Class 2 base, drain rock, sand, topsoil and fill across Yuba County, from the valley floor to the foothill towns. If you are building a drive, a pad or a drainage run, size the load and place your order online. We will get the material to your site so the work can start.