Gravel in St. Helena, CA

Costs vary by material, quantity, and exact delivery location, but expect material plus delivery in St. Helena to typically fall in a broad range of $60 to $150 per ton for decorative or specialty gravels and $30 to $80 per ton for common crushed rock. Hello Gravel has a 3-ton minimum order and delivery pricing depends on local supplier and truck access; check your zip code for exact rates. Get a quote through our site for the most accurate price for your address and desired material.

For driveways, 3/4u0022 crushed rock or '3/4u0022 minus' (angular) is most common because it compacts well and sheds water. For walkways and patios consider decomposed granite for a natural look or compacted crushed stone; pea gravel works for paths but is not ideal on steep slopes because rounded stone can shift. Local climate is Mediterranean with winter rains, so choose angular materials that lock together and add edging to keep material in place.

Use this quick rule: tons = area (sq ft) x depth (inches) x 0.00432. For example, 100 sq ft at 2u0022 depth needs about 0.86 tons; 100 sq ft at 4u0022 depth needs about 1.73 tons. That formula accounts for typical gravel density; use our online calculator or contact Hello Gravel for help with your exact dimensions.

On slopes choose angular, crushed stone (not rounded pea gravel) so the particles interlock and resist movement. Larger sizes like 3/4u0022 to 1u0022 crushed rock with a small percentage of fines help stability; consider installing terraces, edging, or geotextile underlayment for erosion control. For very steep areas, consult a contractor or civil engineer and consider drainage measures to prevent washout during heavy winter rains.

With proper base preparation and periodic maintenance, a gravel driveway in St. Helena’s mild climate can serve 10 to 20 years before major overhaul. Expect to regrade and add 1 to 2 inches of fresh gravel every 3 to 5 years, and address ruts or potholes promptly by filling and compacting. Regularly clear runoff channels, maintain edges, and check drainage after winter storms to keep the surface stable.

Installation costs vary with site access, base requirements, and grading complexity; typical professional gravel driveway installation in the Napa area ranges roughly $2 to $6 per square foot. Sites needing substantial grading, retaining walls, or extra drainage can be higher. Get local quotes that break out base rock, compaction, grading, and finish layer so you can compare bids accurately.

For drainage use open-graded aggregate such as 3/4u0022 clean rock, 1u0022 drain rock, or #57 stone depending on pipe size and flow needs. These free-draining materials work well in French drains, swales, and around culverts; combine with perforated pipe and geotextile fabric to prevent clogging. Because St. Helena gets winter rains, good drainage under driveways and around foundations is especially important to avoid saturation and washouts.

Permit and HOA rules vary by neighborhood; some property zones or HOAs require specific surfaces, setbacks, or stormwater controls. Contact Napa County Planning and Building for permitting questions and check with your HOA before changing driveway surfacing. If a permit is required, you may need to show drainage plans or edge details to meet local stormwater and grading standards.

Hello Gravel will connect you with trusted local suppliers in the Napa and Sonoma region when you enter your zip code on our site. Many local quarries and aggregate yards serve St. Helena and the surrounding area; availability and color will reflect local geology. If you prefer specific colors or types, include that in Order Notes or contact our sales team for help matching materials to your project.

Gravel is typically the lowest upfront material cost and is permeable, which helps with stormwater, but it requires ongoing maintenance like regrading and topping. Asphalt has higher initial cost and lower routine maintenance but is less permeable; pavers are the most expensive to install but offer durability and a finished look. Estimate installed costs roughly as gravel $1 to $4 per sq ft, asphalt $3 to $7 per sq ft, and pavers $10 to $25 per sq ft, but get local quotes for precise comparisons.

Order at least the Hello Gravel minimum of 3 tons and use the online material calculator to confirm quantities; add extra for slopes, compaction, or waste. Schedule delivery with room for a tri-axle dump truck at the drop location, request tailgate spreading in Order Notes (driver will decide at arrival), and note any driveway access issues when ordering. If you have concerns about erosion or drainage, mention them so suppliers and haulers can plan the best delivery spot.