Crushed Stone, Sand and Gravel in Central, UT

Utah Rock Supply brings gravel and aggregate delivery in Central, UT, and untreated base course is where most drive and pad work starts here. UTBC is the Utah name for the compacting base under a driveway, a parking pad, a slab or a shed.

This part of Washington County runs a long working season. Heat, not frost, sets the pace through summer, so timing a load around the weather matters more than waiting out a freeze.

Materials for Central Projects

Base and driveway surfacing carry the work here. Untreated base course, also called UTBC, is the graded crushed material that compacts into a firm, load-bearing layer.

Size base by top size. Road Base is sold as 3/4 inch minus or 1 1/2 inch minus, and the same material goes under driveways, parking pads, slabs, shed bases and paver work.

For a finished drive surface, Driveway Gravel tops a compacted base on rural, canyon and bench drives. Walkway Gravel gives paths and garden walks a finer, walkable surface than drive gravel.

Washed stone for drainage

Drain Rock, which Utah yards also call washed rock or clean rock, goes into French drains, footing and foundation drains, window wells, drywells and downspout runs. It is washed, so it passes water instead of holding it.

3/4" Crushed Stone serves drainage beds, trench backfill, drive surfacing and construction entrances.

3/8" Crushed Stone handles fine drainage, pipe bedding and paver joints.

Where a spec number is used, it is spec language. #57 stone and #67 stone cover drainage and concrete aggregate at slightly different sizes, and #4 crushed stone suits heavy drainage and trench bottoms.

Sand, soil and decorative stone

Mason Sand is the mortar sand for brick and block work and paver joints. Washed Sand, or concrete sand, beds and levels pavers and slabs and mixes into concrete.

Ground here is alkaline and low in organic matter, and new lots are often stripped to clay subsoil. Top Soil is screened and starts a lawn or a bed.

Garden Soil is a soil and compost blend for raised beds and planting areas.

RipRap armors wash and arroyo banks, culvert outlets and ditch banks against flash runoff. Wasatch Cobble and Large River Rock cover decorative beds, borders, park strips and dry creek beds.

Ground and Conditions in Central

Water is the driver in this part of the state. Summer monsoon cloudbursts and winter frontal rain fall on ground that takes in very little, and the washes rise fast.

Across the Southwest Utah ground region, from the St. George basin to the Escalante Desert, soils run sandy and gravelly over red sandstone and volcanic rock, with heavy expansive clay in places and alkaline flats farther north.

Clay holds water under slabs and flatwork.

That is why drainage stone belongs under and around flatwork here. A clean washed stone moves water away from a slab edge, and expansive clay that stays wet pushes back.

Erosion follows the same pattern. Sheet flow crosses bare desert slopes and alluvial fans, wind moves loose sandy ground, and flash flooding works the washes.

Riprap on a bank or a culvert outlet takes that energy.

Frost is brief at the warm low end of this region and heavier at the plateau towns above it. Every jurisdiction sets its own footing depth, so confirm the figure locally before you pour.

Delivery to Central and the Surrounding Area

Bulk material arrives by dump truck and is tipped in one pile at the delivery address. Have the drop area clear and reachable before the truck arrives.

Order online and choose your quantity by the ton or by the yard. Each product page has a calculator to help you size the load before checkout.

Utah Rock Supply delivers across Central and Washington County, including St. George, Washington, Hurricane, Ivins and Santa Clara.

Pick a delivery date at checkout and the truck brings the material to the site.

Order Base, Gravel and Sand for Your Central Project

Utah Rock Supply delivers untreated base course, driveway and walkway gravel, drainage stone, sand, topsoil and decorative rock to Central and Washington County. Order online, size the load on the product page, and pick your delivery date at checkout.