Fill-dirt in Vashon, WA

Typical delivered prices for fill-dirt in the Vashon/West Washington area usually fall in a range rather than a fixed number because of local sourcing and island access. Expect roughly $20 to $45 per ton or about $25 to $60 per cubic yard as a starting point; final price depends on delivery distance, load size, and whether a ferry/barge surcharge applies. For an exact price plug your zip code into our checkout or contact our sales team for a local quote.

Hello Gravel connects you with local suppliers and contracted haulers that serve Vashon Island and nearby West Washington suppliers; we do not use Hello Gravel-branded trucks. Most suppliers have a minimum around 3 tons (our platform minimum), though some island or small-haul operators may set higher minimums of 5 to 10 tons. Island deliveries can incur additional ferry/barge or terminal handling surcharges that commonly range from a modest fee up to a few hundred dollars depending on load size and access, so check your quote at checkout or call our team.

Vashon's wet climate and glacially derived soils increase the risk of settlement and poor drainage if fill-dirt contains organics or too many fines. For structural fills or pads you should use clean, well-graded granular fill and compact in thin lifts with proper moisture control; loose, uncompacted fill will consolidate more in this climate. Contractors often recommend geotechnical guidance for large fills or where seasonal water is present.

A 1,000 sq ft area raised 6 inches equals about 18.5 cubic yards of loose material. Accounting for typical placement and compaction loss (about 15-25%), plan on roughly 22 cubic yards, which converts to about 25 to 35 tons depending on material density (we commonly use ~1.2–1.6 tons per cubic yard). Order a little extra to cover settlement and uneven grading, and use our calculator or contact sales for a site-specific estimate.

Yes. Deliveries to Vashon can require coordination with ferry or barge schedules and sometimes terminal handling, which can add time and extra fees compared to mainland West Washington. Heavy rains and winter weather may slow access or require rescheduling; for island jobs we recommend booking earlier and allowing extra lead time. Check our delivery calendar at checkout and contact our team if you need a specific delivery window.

For driveways and under-slab fill, avoid loose organic fill; use a clean, well-graded granular material (mixed sand and gravel or crushed rock) that compacts well and sheds water. Under slabs and septic drain fields typically require engineered or washed granular base per building or health department specs—plain fill-dirt with fines or organics is usually not acceptable. Always confirm gradation requirements with your contractor and local permitting authority before ordering.

Fill-dirt is generally not the best top surface for long-term driveways in a wet climate because it can rut, hold moisture, and vegetation may grow through it. Crusher fines or a properly installed engineered base (compacted crushed rock layers) provide much better drainage, stability, and longevity on Vashon. For durable driveways, use an engineered base topped with appropriate surface material rather than fill-dirt alone.

Vashon is in King County, and large regrades, building pads, or work affecting septic systems and shorelines commonly require permits and may require compaction testing or engineered fill reports. Smaller landscaping fills often do not trigger permits, but you should check King County Department of Permitting for specific thresholds and consult your contractor or engineer. If a permit is required, testing frequencies and acceptance criteria will be set by the county or your project engineer.

Typical equipment includes excavators or loaders to place material, followed by plate compactors or small rollers for patios and driveways, and larger vibratory rollers for bigger pads. Sloped, tight-access sites add time and may require smaller machines or staged hauling, increasing labor and mobilization costs; many contractors factor slope and access into the bid. Get several site-specific quotes and ask vendors to itemize mobilization, equipment, and compaction testing so you can compare accurately.

Contractors calculate volume first: area times depth (in feet) divided by 27 to get cubic yards, then add a compaction/settlement allowance (commonly 10–25%). They convert cubic yards to tons using local bulk density (often about 1.2–1.6 tons per cubic yard for fill-dirt or granular mixes). If you share dimensions and desired finished elevation with our team we can do that math for you or provide a printable estimate.

Control measures include limiting stockpile size, using silt fence, straw wattles, temporary seeding or erosion control blankets, and staging work outside of sensitive buffers where required by King County or state rules. Avoid placing fill within regulated wetland or shoreline buffers without permits and a qualified plan; contractors typically schedule work for drier months and protect stormwater paths during installation. Always confirm permit and buffer requirements with King County and mention environmental concerns when you request a quote so suppliers and haulers can plan appropriately.