Fill Dirt in Nampa, ID

Typical delivered fill-dirt in Nampa usually runs in the range of $10 to $30 per ton (about $12 to $36 per cubic yard), depending on supplier, order size, site access, and whether screening or clean fill is requested. Hello Gravel shows exact pricing for your zip code at checkout and requires a 3-ton minimum; delivery fees or next-day charges may apply.

Use this rule: cubic yards = area (sq ft) x depth (in inches) / 324, then multiply cubic yards by about 1.2 to get tons (fill-dirt density varies). For example, raising 500 sq ft by 3 inches needs ~4.6 cubic yards (about 5.5 tons) and 1,000 sq ft by 6 inches needs ~18.5 cubic yards (about 22 tons).

Fill-dirt can be used to raise grades or fill low spots, but it is not ideal as a finished driveway surface or structural building pad because it tends to settle and holds fines that can freeze-thaw. For driveways and pads in Nampa, use properly compacted granular base or engineered fill beneath the surface material to ensure stability and drainage.

For foundation backfill you want clean, compactable material with low organic content and good drainage — typically a well-graded granular fill rather than loose topsoil or high-clay fill-dirt. Specifications often call for limited organics, moderate fines, and compaction to roughly 90–95% of Standard Proctor; always confirm local building department or engineer requirements for your project.

Hello Gravel connects you with trusted local suppliers and contracted trucking fleets that serve Nampa and the Boise metro; check availability by entering your zip code on our site. If you need help finding a supplier or confirming site access, contact our team at 855-241-8884 or text 844-407-3734 for guidance.

Fill-dirt tends to settle over time, especially if not placed and compacted properly; expect some settlement and occasional regrading or topping, particularly for landscaped areas. As a long-term structural base for driveways or load-bearing pads, fill-dirt alone usually performs poorly — a compacted granular base or engineered fill will last much longer and need far less maintenance.

Fill-dirt is fine-grained and often retains moisture and fines, which makes it prone to settling and poor drainage. Crushed rock provides structural strength and drainage, while engineered fill is specified, placed, and compacted for load-bearing use; for driveways and drainage in Nampa’s conditions, crushed rock or engineered fill is usually the better choice.

Yes — for anything structural (building pads, beneath driveways, or deep fills), professional compaction with plate compactors or rollers and testing is recommended to meet compaction specs. For small, shallow landscape fills you might get by with hand tools or a rented plate compactor, but heavier-duty work should be done by pros to avoid future settlement problems.

Loose fill-dirt with a lot of fines can wash and cause erosion on slopes, especially during spring runoff; it is not the best material for slope-facing surfaces. For sloped lots use well-graded granular material, install proper drainage swales or terraces, and use erosion controls (silt fence, hydroseed, mats, or retaining structures) to stabilize slopes in Nampa’s terrain.

Potentially — depending on the scope of work you may need city or county permits for grading, retaining walls, or changes to drainage; HOAs can also have rules about visible grading or exterior changes. Also confirm truck access, driveway weight limits, and space for offloading with your supplier and check with Hello Gravel if special delivery instructions or permits are required; our team can help you review access and scheduling.