Aggregate Products & Gravel in San Juan County, Colorado

Best Aggregates for Driveways and Roads

Driveway and road projects in San Juan County face steep slopes, heavy winter snowfall, and a short construction season. Selecting the right mix of aggregates ensures longevity and lower maintenance.

Driveway Construction Essentials

Use a layered approach: compacted road base, then a binder or crusher run, topped with a wear surface such as 3/4 inch crushed stone or driveway gravel. For steeper sections, add geotextile fabric and proper drainage with drain rock to prevent washouts.

• Base: Road Base or Crushed Concrete for stable subgrade.
• Binder: Crusher Run or 3/4 inch Crushed Stone for interlock and compaction.
• Surface: Driveway Gravel or #57 Stone depending on finish and traction needs.

In cold climates like San Juan County, aggregates with good drainage properties reduce freeze-thaw damage. Use Drain Rock at culverts and along ditchlines to move meltwater away from the road base.

Crushed Stone, #57 Stone, and Aggregates Compared

Choosing between crushed stone types depends on use, drainage, and compaction requirements. The table below summarizes common choices for San Juan County projects.

Sand, Soil, and Specialty Materials

Beyond aggregates, Sand and soil products are essential for planting, masonry, and playground areas. In San Juan County's thin alpine soils, bringing in quality topsoil and sand can make the difference for successful revegetation and masonry work.

Topsoil and Fill Solutions

Screened topsoil restores planting areas after construction. Use fill dirt for bulk grading where structure is needed. Our Topsoil and Fill Dirt are screened and tested for consistency to improve compaction and plant establishment in local conditions.

Sands for Masonry and Play

We offer multiple sand types for specialized uses. Use Mason Sand for mortar, Washed Sand for bedding pavers, and Playground Sand for safe play surfaces. Proper sand selection helps prevent washouts and ruts in areas with high rainfall or snowmelt.

Decorative Stone and Erosion Control

San Juan County’s steep slopes and fast runoff during spring melt require careful erosion control. Decorative aggregates can serve both aesthetic and functional roles.

River Rock and Decorative Options

Use River Rock for stabilizing slopes, lining swales, and accenting xeric plantings. Pea Gravel and Decomposed Granite provide natural-looking walking surfaces that blend with local color palettes.

• River rock reduces erosion along channels and splash zones.
• Pea gravel provides comfortable walkways and porous surfaces.
• Decomposed granite compacts into a stable, natural finish for trails.

Recycled and Cost-Effective Aggregates

Recycled aggregates reduce costs and environmental impact. Crushed concrete and crusher run can be ideal subbase materials where structural performance is required without premium cost.

When to Use Crushed Concrete

Use Crushed Concrete or Crusher Run for backroads, temporary access pads, and construction staging areas. These aggregates perform well under compaction and are often accepted for permitted road projects.

Project Types Suited to Each Material

Different materials fit specific project needs. Below are common project types and recommended aggregates for San Juan County conditions.

• Driveways and private roads — Road Base, Crusher Run, surface with 3/4 inch Crushed Stone or Driveway Gravel.
• Drainage and culverts — Drain Rock, #57 Stone.
• Paths, patios, and pedestrian areas — Decomposed Granite, Walkway Gravel, Pea Gravel.
• Lawn repair and revegetation — Topsoil.
• Masonry and bedding — Mason Sand, Washed Sand.
• Play areas — Playground Sand.

Local Conditions and Material Recommendations

San Juan County sits high in the San Juan Mountains with thin soils, volcanic and metamorphic bedrock, and significant snowfall. These local factors influence aggregate performance and material selection.

Soil and Geology Considerations

Soils are often shallow, rocky, and acidic with a lot of coarse fragments from glacial and volcanic deposits. Thin topsoil layers mean that imported topsoil is often necessary for planting and reclamation. We recommend screening topsoil and adding amendments for revegetation near disturbed sites.

Climate and Drainage

High snow loads and rapid spring melt create heavy runoff and potential erosion. Choosing angular aggregates that interlock and provide good drainage can prevent rutting and frost heave. Use drain rock in low points and along culverts to safeguard base materials during thaw cycles.

Nearby Counties and Regional Work

We also serve projects that cross county lines into Ouray County and Hinsdale County. Road crews and contractors working regionally often specify the same aggregate mixes across county borders to ensure consistent performance across mountain road systems.

Service Features: Delivery, Scheduling, and Support

Delivery and Logistics

We offer free gravel delivery San Juan County wide for standard loads. Trucks are staged to reach mountain addresses, and our drivers are experienced with switchbacks, high-elevation routes, and seasonal access limitations.

• Free delivery to most addresses within San Juan County.
• Load sizes from a single yard to truckloads for large projects.
• Experienced drivers for narrow alpine roads and steep driveways.

Material Handling & Testing

We inspect aggregates for gradation and consistency. For structural projects, specifying tested road base and compactable crusher run helps meet county road standards. We can advise on appropriate aggregates for local building codes and driveway permits.

Frequently Asked Questions About Gravel in San Juan County