Fill-dirt in Union Gap, WA

Prices vary by supplier, haul distance, and volume, but fill-dirt in the Union Gap area commonly falls in the range of about $12 to $30 per ton delivered. Larger orders and local supplies tend toward the lower end; small loads or long hauls push costs higher. Check your zip code on Hello Gravel for up-to-date local pricing and minimums.

Hello Gravel connects you with local suppliers and haulers serving Union Gap and Yakima County, and deliveries are made by tri-axle dump trucks. Minimum order size is typically 3 tons and delivery can include optional tailgate spreading at the driver’s discretion. Enter your address on our site or call us to see available suppliers and scheduled delivery windows.

Standard delivery requires 2 or more business days from order; next-day delivery may be available for orders placed before noon CST for an extra fee. Most deliveries follow a 3-ton minimum order policy and are completed by contracted dump truck fleets. Large jobs or special access situations may require additional scheduling lead time.

Small residential additions of fill-dirt on private property often do not require a permit, but city and county rules vary. Permits are commonly required if the work changes lot drainage, affects public rights-of-way, encroaches on setbacks, or is near streams and wetlands. Check with the City of Union Gap and Yakima County building or planning departments before delivering large volumes or altering site grades.

For engineered fills under slabs or roadways, contractors typically compact to around 90-95% of the modified Proctor density, using plate compactors for shallow lifts and ride-on vibratory rollers or sheepsfoot rollers for deeper lifts. Typical lift thickness before compaction is 4 to 8 inches depending on equipment and soil type. Ask for a compaction spec and verification testing if you have a structural or frost-sensitive project.

Fill-dirt is fine for raising non-structural grade and landscaping, but it is not an engineered base for driveways or garage slabs. For load-bearing areas and frost protection in Union Gap, choose crushed rock or road base with proper gradation and compaction; these materials shed water and resist frost heave better than fine fill-dirt. If you must use fill-dirt for leveling, place a properly compacted structural base layer beneath the surface.

A practical estimate is about 1.2 to 1.4 tons per cubic yard for fill-dirt; use 1.3 tons/yd3 as a working number unless you have a lab-specific density. Example: a 20 ft x 20 ft garage pad at 6 inches deep is about 7.4 cubic yards, roughly 9.6 tons of fill-dirt. Always calculate volume in cubic yards first (area x depth / 27) and then convert to tons, and add 5-10% for compaction and settlement.

Fill-dirt often contains fine particles that retain moisture, which can worsen frost heave and poor drainage if used as the primary base. In Union Gap’s cold-season conditions, using free-draining aggregate below finished grades, controlling surface runoff, and proper compaction reduce frost-related movement. For critical slabs or paved areas, use engineered base materials designed for drainage and frost resistance.

Contractors may price materials by the ton or cubic yard and charge separate line items for hauling, spreading, and compaction, or they may offer an all-in per-square-foot or per-cubic-yard installed rate. Factors that affect price include haul distance, site access, required compaction, and disposal of unsuitable excavated material. Ask for itemized bids to compare material cost, labor, and equipment charges.

Use fill-dirt for non-structural grading, raising beds, or backfill where load-bearing and drainage are not critical. Choose structural fill or road base when you need engineered gradation, compaction specs, and load-bearing capacity (for driveways, pads, and roads), and choose clean fill when you need material free of organics and debris for utility trenches or certain permits. If you are unsure, discuss your project with a contractor or Hello Gravel sales to match the right material to the application.