Fill Dirt in Diamond Springs, CA

Fill dirt is subsoil with minimal organic material used to raise grade, fill low spots, and backfill foundations. In Diamond Springs it is commonly used to level yards, raise driveways above seasonal runoff, and build up pads before installing gravel or pavers. It is not a finished surface, so plan to cap it with topsoil, gravel, or paving depending on the project.

Estimate cubic yards first: (square feet x depth in inches) / (12 x 27) = cubic yards. Multiply cubic yards by a rule-of-thumb of 1.3 tons per cubic yard to get tons. For example, raising 1,000 sq ft by 3 inches equals about 9.3 yd3, or roughly 12 tons of fill dirt.

Delivered fill dirt prices vary by supplier, distance, and load size, but a typical range in the Diamond Springs area is about $12 to $30 per ton (roughly $16 to $40 per cubic yard). Hello Gravel provides exact, upfront pricing for your zip code and shows delivery options; note our minimum order is 3 tons and next-day delivery may have an extra fee. Always request a full quote to confirm fees for your address and site access needs.

For slopes, choose fill dirt that is well-graded and low in organic material so it compacts well; avoid loose, high-organic topsoil. For erosion-prone slopes in Diamond Springs, consider mixing or topping with a coarse, free-draining layer (gravel or road base) and using vegetation or erosion control fabric to hold the slope. If the surface must carry traffic, use crusher run or road base on top of compacted fill dirt rather than relying on fill dirt alone.

Contractors typically aim for 90% to 95% relative compaction for structural pads; check local code for exact requirements. Compact in lifts no thicker than 6 to 8 inches using a plate compactor for small areas and a vibratory drum or sheepsfoot roller for larger areas. Have a geotechnical or soils report if you are building a foundation, since local clay or variable soils in the Sierra foothills can change the specification.

Fill dirt is mostly fines and subsoil used to change grade and fill voids, but it does not provide a stable driving surface. Crusher run and road base are angular, compactable aggregates mixed with fines that lock together and provide structural strength and drainage for driveways. Use fill dirt for raising or leveling and finish driveways with crusher run, road base, or compacted gravel for durability and drainage.

In Diamond Springs' climate, winter rains can cause settlement and surface erosion if fill dirt is not properly compacted, graded, and drained. Well-compacted fill with positive surface slope, drainage swales, or French drains reduces pooling and erosion, and a gravel or paved cap protects the surface. Because local soils can include clay, allow for extra compaction and inspection after the first rainy season.

A fill dirt base covered by gravel will need periodic regrading and additional material—commonly 1 to 2 inches added every 1 to 3 years depending on traffic and weather. Inspect areas after heavy rains for rutting or settlement and patch low spots promptly. A properly compacted fill pad that is capped and drained can remain stable for decades, but surface maintenance is ongoing for unpaved finishes.

Use Hello Gravel to check availability by zip code; we’ll connect you with local suppliers and show delivery dates, pricing, and truck types (typically tri-axle dump trucks). Order roughly 5% to 15% extra to allow for compaction, settlement, and waste—more for deep fills or uneven terrain—and remember our minimum order is 3 tons. Contact our team if you need help calculating quantities or scheduling delivery.