Gravel, Rock and Soil Delivery in San Angelo, TX

Tulia loam, a forgiving soil

The USDA survey maps Tulia loam, 1 to 3 percent slopes, at the ZIP's center point. The Tulia series makes up 100 percent of the map unit. Loam is a balanced mix of sand, silt and clay, and it is about as easy to work as soil gets. It holds together when squeezed, breaks apart cleanly, and takes both a shovel and a plate compactor well.^[1]

Drainage favors builders. The survey rates the soil well drained, in hydrologic group B with moderate infiltration. Rain soaks in at a steady pace instead of racing off the surface or standing in puddles, and the ground dries back out without much help.^[1]

That combination makes loam one of the easier soils for a beginner to build on. A test hole shows it plainly: the walls stand up on their own, the spoil crumbles in the hand, and water poured into the hole drains away within a short wait. If a hole holds water for a long time instead, that spot has a tighter layer below and deserves a bit more base and a drainage path.^[1]

Shrink-swell in the top 100 cm rates moderate, at 4.5 percent linear extensibility. The loam swells a little when soaked and shrinks a little when it dries, enough to notice in a long slab or a rigid edge but not enough to heave a well-built gravel surface. Flexible materials such as compacted stone handle that movement better than poured concrete.^[1]

The center point stands 1,940 feet above sea level, on a map unit sloping 1 to 3 percent. A gentle grade like that helps a driveway shed water, as long as the high side does not funnel runoff straight onto it.^[1],[2]

Dry country with sudden storms

The NOAA station San Angelo WFO, TX, about 13 miles away, supplies the weather normals. It averages 20.9 inches of precipitation and 1.3 inches of snowfall a year. Dry weeks are the rule, and a surface has to hold together through long spells of heat and wind. When rain comes, it can come hard, so drainage still needs a plan.^[3]

The station counts 60 days a year when the low reaches 32 F or colder. Its median last spring freeze is March 22, and its median first fall freeze is November 10. Freezes come and go overnight more than they settle in, so frost rarely gets deep into a well-drained base.^[3]

Plant tender annuals and vegetables after the late-March date, and wrap or cover them once mid-November arrives. A layer of mulch over the root zone smooths out the swing between warm afternoons and freezing nights.^[3]

Wind matters in open country too. Fine sand and dust lift off bare ground on a dry, gusty day, and loose wood mulch can blow into corners. Heavier materials, such as River Rock or 3/4" Crushed Stone, stay where they are spread. Shredded mulch knits together and holds better than chips in an exposed bed, while Wood Chips do well under trees where the wind is broken.^[3]

A ranch-style gravel drive

On well-drained loam, a long gravel drive goes together without much fuss. Strip the grass and topsoil, crown the subgrade so water runs to both sides, and compact it. Fabric is optional on soil like this, though it helps on any soft patch or low swale the drive has to cross.^[1]

Road Base is the backbone. Spread it in thin lifts, wet each one, and compact it until a boot heel barely marks the surface. The mix of angular rock and fines locks into a hard layer that handles pickups, trailers and the odd delivery truck. Crushed Concrete does the same job and suits a work yard or barn approach.^[1]

Top the base with 3/4" Crushed Stone or Driveway Gravel for grip. In dry weather a thin top layer keeps dust down, because the compacted fines below stay covered. Where the drive dips through a low spot, set a culvert and armor both ends with Riprap so storm runoff does not undercut the road.^[3]

Rock and mulch for a dry-climate yard

Many yards here trade thirsty lawn for rock and native plants. River Rock, Decomposed Granite and 3/8" Crushed Stone all work as a ground cover that does not need watering. Lay fabric under them to cut down on weeds, and edge each area so stone stays out of the remaining grass.^[3]

Mixing sizes adds interest without adding water. A border of larger River Rock around a bed of 3/8" Crushed Stone, with a Decomposed Granite path running through it, gives a front yard texture and color all year. Leave planting pockets with Compost worked into the loam for native shrubs and grasses, and run a drip line under the stone before it goes down.^[1],[3]

Loam is good planting soil, so beds need less help than on sand or clay. Mix Compost into the top layer for extra organic matter, and use Garden Soil to fill raised beds. Top the soil with Brown Shredded Mulch or Wood Chips to hold moisture between rains.^[1],[3]

Choosing between Road Base and Crushed Concrete

Road Base and Crushed Concrete each compact into a hard, stable layer, and each works well on Tulia loam. Road Base is natural crushed rock with fines blended in, so it has a consistent color and binds tightly when wet and rolled. Crushed Concrete is recycled material with a similar mix of sizes, slightly lighter in color and just as firm once packed.^[1]

Choose Road Base for a front driveway where an even look matters, and Crushed Concrete for a shop yard, a parking area behind a barn or a long ranch road where volume counts most. Either one wants a cap of clean stone on top in dry country, so the binding fines stay put instead of blowing away as dust.^[3]

Homes in ZIP 76901 and the state base book

The Census counts 14,021 housing units in ZIP 76901. Detached single-family houses account for 75 percent of them, a little above the 70 percent share across San Angelo. Owners live in 71 percent of the ZIP's occupied homes. The median home in the ZIP was built in 1975, and the city median is 1978. San Angelo as a whole has 44,176 housing units.^[4]

For state highways, the Texas Department of Transportation calls for Flexible Base under Item 247 of its Standard Specifications for Construction and Maintenance of Highways, Streets, and Bridges (2024). A home drive does not follow that book, but it shares the same principle of a dense, rolled stone layer.^[5]

With a high share of detached houses, common jobs include a fresh gravel driveway, a pad for an RV or trailer, and rock for a front yard that has given up on grass.^[4]