Fill Dirt in Tomales, CA

Typical delivered costs for fill dirt in Tomales vary with supplier, haul distance, and site access. Expect roughly $25 to $60 per cubic yard delivered (about $15 to $40 per ton), though actual pricing can be higher for tight access or very short-notice delivery. Hello Gravel has a 3-ton minimum order and can provide an exact quote based on your zip code and delivery conditions.

Local fill dirt suppliers are typically found in Marin and neighboring Sonoma County pits and quarries, with small independent dirt sellers serving West Marin. Hello Gravel can connect you to vetted local suppliers and haulers in the Tomales area so you get a match for your schedule and material needs. For big jobs, ask suppliers about source location and whether the material is screened or contains organic matter.

Fill dirt can be used as bulk fill to build up grade, but it is not a suitable wearing surface for driveways—especially on coastal clay soils that retain moisture. For driveways, use fill dirt only below the finish section, with a proper separation fabric, geotextile, and a compacted road base or crushed rock on top to provide drainage and durability. Without those measures, wet winters around Tomales increase the risk of settlement and rutting.

Compact fill in 4 to 6 inch lifts and condition moisture for best results; small jobs can be compacted with a rented plate compactor or jumping jack, while larger areas typically need a vibratory roller or sheepsfoot roller. For trenches and tight spots use a hand tamper or compacting plate, and consider hiring a contractor for larger fills to ensure even compaction. Always test a small area to confirm firmness before placing additional lifts or finish material.

To raise 1,000 sq ft by 6 inches you need about 18.5 cubic yards of material (1000 sq ft x 0.5 ft = 500 cubic ft; 500/27 = 18.52 cu yd). In weight that is roughly 22 to 32 tons depending on local moisture and material density (fill dirt in this area commonly ranges from about 1.2 to 1.7 tons per cubic yard). Always order a small overage to allow for compaction and settlement, and ask Hello Gravel for a site-specific estimate.

Yes, importing fill in Tomales may trigger Marin County or California Coastal Commission permitting if it involves grading, changes to drainage, or work near wetlands and creeks. Property owners should contact Marin County Planning and Building and check coastal-zone rules before bringing substantial quantities of fill; you may need erosion-control plans, haul-route approvals, and documentation of the material source to prevent contamination or invasive weeds. When in doubt, consult local officials or have your contractor confirm permit requirements before delivery.

Fill dirt is generally not suitable for septic leach fields because those systems need permeable, engineered materials (clean sand or gravel) and county health department approval. For drainage trenches use properly sized gravel and perforated pipe; for erosion control fill dirt can be used to rebuild grades but should be combined with erosion-control measures, revegetation, and proper slope stabilization. Always check Marin County Environmental Health or your engineer before using fill in sensitive or regulated areas.

For a durable Tomales driveway, crushed rock or engineered road base is the better top and base material because it compacts tightly, sheds water, and resists rutting during wet winters. Fill dirt is cheaper and useful for bulk raising or leveling below the base, but it lacks drainage and strength for finished surfaces. Best practice is to use fill dirt only as subgrade where needed, then install geotextile separation and a compacted road base or crushed rock layer as the wearing surface.