Gravel, Stone and Soil Delivery in St. George, UT

Bare rock at the mapped point

The USDA soil survey gives the map unit at the ZIP's center point a blunt name, Rock land. Surveyors use that label where exposed bedrock and thin, stony pockets of earth cover most of the surface, with little true soil to dig into. A shovel on ground like that can strike stone within a few strokes, and a planting hole may call for a pry bar before it calls for a spade. For a buyer, the name settles one question early. Most of what a project needs, from the bed mix to the course under a slab, will arrive on a truck rather than come out of the hole.^[1]

Rock land flips the usual order of work. On deep soil, a crew cuts down and then builds up. On a rock floor, the job becomes filling and leveling: packing low spots between ledges, bridging cracks, and laying a flat, firm course over an uneven surface. Fill Dirt suits the deep hollows where nothing will ever grow. Road Base, with its blend of angular stone and fine dust, wedges into the gaps and compacts into a hard shelf that a surface stone can rest on without rocking.^[1]

Rain, snow and freeze dates at Veyo Powerhouse

Weather averages for the ZIP come from the NOAA normals station at Veyo Powerhouse, UT, about 9 miles away. That station averages 14.2 inches of precipitation a year, a dry figure that shapes almost every yard decision. Water is scarce enough that a planting bed must hold on to what it gets, and a hard surface that sheds every drop can starve the shrubs growing beside it.^[2]

Snow does fall at Veyo Powerhouse, about 10.8 inches in an average year, and the station logs 98 days a year when the low reaches 32 F or colder. A gravel drive copes with cold nights because loose stone has room to shift, but water trapped in a flat spot will freeze and pry the top layer loose. A slight crown sends melt to the edges before dark.^[2]

The station's median last spring freeze falls on April 9. Its median first fall freeze arrives on November 5. Seeding, new beds and tender plants fit after the spring date, and a fresh layer of mulch laid before the fall date shields roots from the first hard nights.^[2]

Laying a driveway on a stone floor

Start by scraping away loose debris, drifted sand and roots until the crew reaches firm rock or packed stony ground. Where the floor dips, fill it in thin layers rather than one deep dump, and run a plate compactor over each layer before adding the next. Road Base works well here, and Crushed Concrete or Asphalt Millings make sturdy stand-ins that also pack hard. On a stone floor, fabric matters less than it does on clay, since there is little fine soil below to pump up into the base.^[1]

Once the base sits flat and firm, spread the surface course. 3/4" Crushed Stone gives a tight, grippy top that resists rutting, and Driveway Gravel gives a similar finish in a blended look. For a parking pad that carries heavy trucks or a trailer, a lower course of 1-1/2" Crushed Gravel or #4 Crushed Stone adds bulk under the finer stone. With only 14.2 inches of yearly precipitation at the station, damage comes mostly from short, hard storms rather than long soaks, so a shallow swale lined with Riprap or River Rock at the low edge carries that rush of water away from the drive.^[1],[2]

Beds, paths and dry-yard stone

Because the mapped point offers so little soil, most planting starts with a raised bed or a built-up mound. Fill it with Garden Soil, or mix Topsoil with Compost so the blend holds water longer between waterings. A layer of Brown Shredded Mulch or Wood Chips on top slows evaporation, and Black Shredded Mulch or Red Mulch gives the same shade in a color that stands out against stucco or block walls.^[1]

Plenty of yards in dry country skip lawn and use stone as the ground cover instead. Decomposed Granite packs into a firm, natural path that drains between storms. 3/8" Crushed Stone and Pea Gravel make a softer walking surface around a fire pit or a bench, while #57 Crushed Stone fills borders and drip lines where water should sink in rather than run off. River Rock edges a dry creek bed that sits empty most weeks and fills fast when a storm passes over. Walkway Gravel and Stone Dust Screenings finish a garden path that should feel smooth under bare feet, and a thin edge of steel or stone keeps either one from spreading into the beds.^[2]

Decomposed Granite or crushed stone for a path

Two materials compete for most garden paths in dry, rocky country, and each wins in a different spot. Decomposed Granite is granite weathered down to a coarse, sandy grit with a lot of fines. Spread over a compacted base, wetted and rolled, it binds into a firm, almost paved surface that a wheelbarrow can cross and that keeps its tan, natural color. It suits a main path from the drive to the door, a patio for chairs, or a flat area under a shade tree. Its weak point is water. A low spot that collects runoff from a short, hard storm can soften the top and carry fines away, so a DG path wants a slight cross slope and an edge that holds it in place.^[1],[2]

3/8" Crushed Stone, Walkway Gravel and Pea Gravel never bind together the way DG does, and that is their strength in the right place. Water passes straight through them, so they suit side yards, stepping-stone fills and the ground under a downspout. They also shrug off the 98 frosty nights a year counted at the Veyo Powerhouse station, since loose stone has nothing to crack. The trade is a softer, shifting feel underfoot and some scatter onto nearby beds. A good rule is to pick DG where people walk every day and loose stone where water needs to drain, and to lay both over a firm, leveled layer so the uneven rock floor below does not show through as bumps.^[1],[2]

A look at housing in ZIP 84770

The Census tallies 21,668 housing units inside ZIP 84770, set against 43,039 units for the whole city of St. George. Roughly half of the city's housing sits in this single ZIP.^[3]

Detached single-family houses make up 58 percent of the homes counted in ZIP 84770. Across all of St. George the detached share climbs to 67 percent, so the ZIP holds more townhomes, condos and apartments than the city does overall.^[3]

By the Census median, homes in ZIP 84770 date to 1997, while the citywide median lands a few years later, in 2001. Owners occupy 60 percent of the lived-in homes in the ZIP. Gravel Valet trucks serve every kind of address on that list, from a single-family drive that wants a new top coat to a small townhouse patio that needs one load of paver base.^[3]