Gravel, Stone and Soil Delivery in Lubbock, TX

Wind-laid sediment and Acuff loam

The USGS geologic map places the ZIP's center point on the Blackwater Draw Formation, a Pleistocene unit made of sand, fine alluvium and silt. Much of that sediment was carried and dropped by wind and water over a very long time, which is why the ground on the plains is so even and fine-grained.^[1]

At the center point the soil survey maps the Acuff-Urban land complex, 0 to 3 percent slopes. A little over a third of the unit, 35 percent, is urban land that has been paved or built over. Acuff soil accounts for 50 percent.^[2]

Acuff is a loam there, rated well drained and placed in hydrologic group B, meaning it takes in water at a moderate pace. Loam like that drains well in an ordinary rain, but a hard storm can still drop water faster than it soaks in.^[2]

The shrink-swell rating is moderate, at 3.8 percent. Soil with a moderate rating swells when it gets wet and shrinks back as it dries. Over many wet and dry cycles, that movement can tilt pavers or crack a thin slab that sits directly on the soil.^[2]

With slopes of only 0 to 3 percent, much of the ground is nearly level. Water has little natural fall to follow, so every project here needs a deliberate slope built into it.^[2]

Where silty layers sit near the surface, rain from a hard storm can stand in low spots for a while before it soaks in. Watch where water gathers after the first big storm on a new lot, since that tells you where a drain or a raised bed belongs better than any map can.^[1],[2]

Dry plains weather and sudden storms

The NOAA station at the Lubbock weather forecast office, about 5 miles from the ZIP, averages 19.4 inches of precipitation a year. That total can arrive in a handful of heavy thunderstorms separated by long dry spells.^[3]

The forecast office station records 61 days a year with a low of 32 F or colder. Freezing nights are common through the cold months, though deep, lasting frost in the ground is far less of an issue than in northern cities.^[3]

The median last spring freeze at that station falls on March 24. Its median first fall freeze falls on November 11.^[3]

Long dry stretches leave bare loam dusty and loose. Wind lifts that fine soil and carries it across yards, drives and porches, so covering open ground with stone, mulch or plants means a cleaner house and less soil loss.^[2],[3]

The long frost-free stretch between those two dates leaves plenty of time for outdoor work. Base and stone work can go on most of the year, and new plantings have a long run of mild weather to root before freezing nights return.^[3]

A firm drive on flat ground

On loam with a moderate shrink-swell rating, a drive needs a stone base thick enough to spread the soil's movement. Strip any loose topsoil, compact the subgrade, and lay a woven fabric if the ground is soft in spots. Then build the base with Road Base or Crushed Concrete in thin, well packed lifts.^[2]

Because the ground is so level, the drive has to make its own fall. Crown the surface slightly and slope it toward the street or a side ditch, so storm water runs off instead of soaking into the middle of the base.^[2],[3]

Top the drive with Driveway Gravel or 3/4" Crushed Stone. For a long drive or a back lot, Asphalt Millings make a dark surface that binds as it is driven on and holds dust down far better than loose gravel in wind.^[1],[3]

Old fill near streets and buildings can hide rubble and pockets of loose soil. Dig a few test holes before laying a drive or a pad, and pull out anything that would leave a void as it settles.^[2]

Freezing nights do little harm to a drive that drains well. Water soaking into the subgrade is the bigger risk, since it softens the loam and lets the stone press down into it. Keep runoff moving toward the street and away from the base.^[2],[3]

Ground cover for wind and dust

Decomposed Granite is a natural fit for paths and open areas on the plains. Wetted and compacted in thin layers, it forms a firm crust that resists wind and stays walkable. Stone Dust Screenings do the same job as a bed under pavers or flagstone.^[2],[3]

River Rock, #57 Crushed Stone and Pea Gravel over fabric make a heavy rock mulch that the wind cannot lift. They suit beds with drought-tolerant plants, strips along a foundation and areas where grass struggles in dry weather.^[3]

For planted beds, mix Compost into the loam to help it hold moisture, or fill raised beds with Garden Soil. Cover the soil with Brown Shredded Mulch or Wood Chips a few inches deep. Heavy mulch stays put in wind better than light, fluffy material.^[2]

A shed or a carport pad on flat ground should sit a little higher than the yard. Build up a few inches of compacted base, slope it slightly, and edge it so storm water runs past it rather than under it.^[2],[3]

Crushed Concrete or Road Base

Two base materials do most of the heavy work under drives, pads and paver patios here. Road Base is crushed quarry stone mixed with fines, and it compacts very tight. Crushed Concrete is recycled, a little lighter to spread, and it compacts into a hard layer when it is wetted and rolled.^[1],[2]

For a home drive or a shed pad, either one does the job when it is compacted in thin lifts. Road Base suits areas where heavy trucks park. Crushed Concrete suits a shed pad, a side yard or a long drive, where a lighter material that still packs hard makes the spreading easier.^[2],[3]

Sand has its own jobs on the plains. Concrete Sand gives a sharp, firm bed for pavers, Mason Sand fills tight joints and mixes into mortar, and Fill Sand levels a low spot or beds a pipe trench. Playground Sand is washed and soft, the right pick for a sandbox that sits in full sun.^[2],[3]

Homes in ZIP 79401 and across Lubbock

Census Bureau survey numbers place 4,860 housing units in ZIP 79401, and detached single-family houses make up 23 percent of that count.^[4]

Lubbock overall holds 118,143 housing units. Detached houses account for 65 percent of them, and the citywide median build year is 1984.^[4]

The median home in the ZIP was built in 1986. Owners occupy 9 percent of the homes that are lived in.^[4]

Across Texas, state highway jobs build their base course to Flexible Base, Item 247, as written in the 2024 Standard Specifications for Construction and Maintenance of Highways, Streets, and Bridges.^[5]