Gravel in Downieville, CA

The Yuba River runs through Downieville. Because many local gravels are alluvial, suppliers often source rounded river rock and mixed-size gravels from nearby deposits, so expect naturally smoothed stones and color variation that reflect the local geology.

Common sizes you’ll find locally include pea gravel (about 3/8u0022) for walkways, 3/8u0022 to 3/4u0022 crushed stone for patios and paths, 3/4u0022 crushed stone for driveway base and compaction, 1u0022–2u0022 river rock for drainage and decorative uses, and 2u0022+ riprap for erosion control. Choose a size based on use: fine for sitting and walking, crushed angular stone for compaction and driveways, and larger rounded rock for drainage or slopes.

Some alluvial gravels in the Yuba River still contain traces of placer gold, but commercial gravel sold by local suppliers and through our platform is typically processed and screened, so you should not expect recoverable gold in delivered material. If you plan to buy raw, river-harvested material for prospecting, ask your supplier about processing and local regulations.

One cubic yard equals 27 cubic feet. That covers about 108 sq ft at a 3u0022 depth, about 162 sq ft at a 2u0022 depth, and about 54 sq ft at a 6u0022 depth; to estimate for any depth divide 27 by the depth in feet (for example, 27 / 0.25 ft = 108 sq ft at 3u0022).

Costs vary by gravel type, delivery distance, and required depth, and Downieville’s mountain location can increase delivery charges. As a rough guide, a small 20 ft by 10 ft driveway (about 200 sq ft) at 3u0022 depth requires roughly 2 cubic yards (you’ll hit our 3-ton minimum), so expect material plus delivery to range from a few hundred dollars up to $1,000 or more depending on product and haul; request a quote or use our material calculator for a precise estimate.

No; 2u0022 is generally too thin for a driveway. For a stable surface in the Sierra foothills we recommend at least 3u0022–4u0022 of compacted gravel for passenger cars and 4u0022–6u0022 for regular parking or heavier vehicles, plus a compacted base layer and proper drainage to handle runoff and freeze-thaw cycles.

For drainage use clean, washed 3/4u0022 crushed stone or 1u0022–2u0022 river rock to let water pass through. For steeper slopes and banks, larger river rock or riprap (2u0022+) is better for stabilizing soil; always consider local permits if working near the Yuba River and consult with a supplier about suitability for your slope.

Yes, washed and screened products are available from many regional suppliers and are a good choice for patios, pathways, and drainage because they contain fewer fines and dirt. Washed gravel typically costs more than unwashed material, and availability or added fees may apply for remote deliveries into mountain areas.

For most private, on-property projects you won’t need a permit to spread gravel, but work within riverbanks, floodplains, or on public land often requires permits from Sierra County or state agencies. If your project touches the Yuba River or affects drainage, check local regulations and consider consulting Hello Gravel or county offices before ordering.

Historic placer mining reshaped local gravel deposits by removing and moving alluvial gravels along the Yuba River, so some original deposits were heavily worked while other pockets remain. That history means local gravel composition can be mixed and variable, and suppliers may source from reclaimed mine tailings, river bars, or nearby quarries—so expect regional variation in color, size, and cleanliness.

Our minimum order is 3 tons. Standard delivery is 2+ business days, with a next-day option for orders placed before noon CST for an additional fee; remote or mountain deliveries to Downieville may require extra lead time or fees, so check availability and delivery timing at checkout or contact our team for help.