Gravel, Sand and Mulch Delivery in Tuscaloosa, AL

Silt loam over a hardpan

The USDA soil survey maps Shatta silt loam, 2 to 6 percent slopes, at the center point of ZIP 35401. Shatta makes up 90 percent of that map unit. The top mineral layer is silt loam, a soft, smooth soil that packs well when damp but turns to slick mud when soaked.^[1]

Silt particles are finer than sand but coarser than clay. They hold water well and let it go slowly, which helps lawns through dry spells but leaves the surface soft after rain.^[1]

A deeper layer matters more. The survey places a fragipan at about 28 inches, a dense, brittle layer that water and roots pass through only slowly. Rain soaks into the silt loam above it, then stalls on the pan, which is why the survey rates the soil moderately well drained and puts it in hydrologic group C/D: D while the water table is high, C where it has been drained.^[1]

Shrink-swell in the top 100 cm is low, at 1.5 percent, so the soil barely moves between wet and dry spells. Slabs and pavers stay level on it. The challenge on this ground is water, not movement.^[1]

The USGS state geologic map shows Alluvial, coastal and low terrace deposits at the center point, a Holocene unit made of sand, clay, gravel, chert, silt, marl and peat. A mix like that can vary a lot over a short distance. The ground at the center point stands 140 feet above sea level.^[2],[3]

A wet year with mild winters

The nearest NOAA normals station is Tuscaloosa Acfd, AL, about 3 miles away. It averages 57.8 inches of precipitation and 0.0 inches of snow a year. The low reaches 32 F or colder on 40 days in an average year at that station.^[4]

The station's median last spring freeze is March 12, and its median first fall freeze is November 15. That leaves a long growing stretch for shrubs, lawns and vegetable beds.^[4]

With that much rain and a hardpan below the topsoil, the upper soil can stay saturated for days after a storm. Gravel surfaces stay firm only if water drains out of them and away from their base. Frost is a minor issue next to the steady soaking a wet year brings.^[1],[4]

Warm, wet months also speed up the breakdown of wood mulch. Plan on topping up beds more often than in a drier place, and use stone such as River Rock or #57 Crushed Stone in spots where you never want to replace it.^[4]

Gravel drives on soft silty ground

Silt loam loses strength when wet, so a gravel drive needs separation from it. Dig out the topsoil, compact the floor and lay a woven geotextile. Without fabric, silt works up into the stone with every rain and the drive softens into ruts.^[1]

Build the base from Road Base or Crushed Concrete in thin, wetted, compacted lifts. On a low or wet section, start with a course of #4 Crushed Stone or 1-1/2" Crushed Gravel to bridge soft ground. Finish with Driveway Gravel or 3/4" Crushed Stone, crowned so rain runs off to the sides.^[1]

Asphalt Millings make another surface choice. They pack into a firm, dark top that sheds rain and binds tighter in summer heat.^[4]

The Alabama Department of Transportation names Crushed Aggregate Base in Section 825 of its Standard Specifications for Highway Construction (2026). That section governs the crushed stone layer the state builds under its roads.^[5]

A home driveway does not have to meet a highway section, but the principles transfer: angular stone, a well graded mix, firm compaction and water kept away from the subgrade. On slopes of 2 to 6 percent, add a shallow ditch or a row of River Rock along the downhill edge so runoff does not cut across the drive.^[1]

Perched water and how to drain it

Before digging, walk the property in a hard rain. Note where water comes from, where it pools and where it leaves. A drain placed on that path does far more than one placed by guesswork.^[4]

Water that stalls on a fragipan can seep sideways and surface downhill, often in a lawn, a crawlspace or against a foundation. A curtain drain cuts it off: a trench across the slope above the wet spot, lined with fabric and filled with Drain Rock or #57 Crushed Stone around a perforated pipe that runs to an outlet.^[1]

Dry wells struggle here because the pan stops water from sinking. A pipe that carries water to lower ground or the street works better than a pit. Splash pads of River Rock under downspouts stop the 57.8 inches of yearly precipitation at the station from carving holes beside the house.^[1],[4]

Paths stay usable through wet months when they drain. A walk of Walkway Gravel or #67 Stone on fabric sheds water quickly, while bare silt turns slick.^[1]

Homes on crawlspaces gain from the same thinking. Grading soil away from the walls and running gutters into pipes that carry water past the low side of the house keeps the space under the floor drier.^[1]

Beds, lawns and soil on gentle slopes

Most roots stay above a fragipan, so beds benefit from depth on top rather than digging. Raised beds or mounded rows filled with Garden Soil give plants more room to grow. Compost mixed into the silt loam improves its structure and helps it drain.^[1]

On gentle slopes, bare silt washes quickly in a hard rain. Cover new beds right away with Brown Shredded Mulch, Black Shredded Mulch, Red Mulch or Wood Chips. Spread fresh mulch after the March 12 median last freeze and again before the November 15 median first freeze.^[1],[4]

Topsoil patches thin lawn areas and fills low spots before seeding. Fill Dirt raises larger low areas, compacted in layers, with Topsoil spread on top for grass.^[1]

Low shrink-swell soil is kind to pavers, walls and edging. A small retaining wall of block or stone can hold a terraced bed on a slope, with #57 Crushed Stone behind it so water drains through instead of pushing on the wall.^[1]

Homes in ZIP 35401

The Census counts 19,519 housing units in ZIP 35401. Detached single-family houses make up 37 percent of them, and owners live in 27 percent of the occupied homes. The median home in the ZIP was built in 1979.^[6]

For Tuscaloosa as a whole, the Census reports 52,122 housing units, with detached houses at 49 percent. The city's median year built is 1988.^[6]

With most homes in the ZIP rented and many in apartment buildings, property managers make up a large share of buyers. Common jobs include stone for a parking area, mulch for shared beds and sand for a volleyball court or play area.^[6]