Fill Dirt in Sonoma, CA

Typical delivered prices for fill dirt in Sonoma range from about $25 to $50 per ton, depending on material quality, distance from local suppliers, and whether the material is screened or has rock. Hello Gravel has a 3-ton minimum and offers transparent quotes in checkout, with many areas eligible for free delivery; use our material calculator or contact our team for a customized estimate.

Fill dirt by itself is not a good finished surface for driveways or heavy truck use. For driveways you need compacted structural fill, a crushed-rock base, proper drainage, and usually an engineered design; we recommend using fill dirt only to build grade and then topping with road base or asphalt for heavy loads.

First calculate cubic yards: 20 x 30 ft x 0.5 ft = 300 cubic feet, which is about 11.1 cubic yards. Fill dirt in Sonoma typically weighs about 1.2 to 1.5 tons per cubic yard, so you would need roughly 13 to 17 tons; order an extra 5-10% to allow for settling and compaction.

Fill dirt can be used to regrade low spots and restore slope shape, but Sonoma's clay soils often hold water and can worsen surface runoff if not combined with drainage measures. For effective erosion control use clean, compacted fill, add swales, French drains, retaining features, and consult a soils engineer for steep or sensitive slopes.

You may need permits for large fills, grading, work near creeks or wetlands, or when altering drainage on a property in Sonoma County. Check with Sonoma County Permit and Resource Management Department (PRMD) and the City of Sonoma for local rules, and check with Hello Gravel before ordering so we can help flag potential permitting needs.

Deliveries are made by dump trucks (typically tri-axle) and Hello Gravel requires a minimum 3-ton order; standard delivery takes 2+ business days with next-day available for qualifying orders. Make sure the drop zone has truck access, no low wires, and a turnaround; note that tailgate spreading is available at the driver's discretion and should be requested at checkout.

No. Because Hello Gravel sources fill dirt regionally, color, texture, and the amount of clay, silt, and rock will vary with local geology in Sonoma. If you need a specific material spec, request details in order notes or contact our sales team for guidance and photos from nearby loads.