Dirt delivery in the Brazos Valley
The Brazos Valley sits on post oak savannah soil: sandy loam ridges over expansive Wilson and Burleson clay. A slab wants a select fill pad in 6 to 8 inch lifts, a lawn wants 4 to 6 inches of imported topsoil, and a rural tract wants clay fill by the load.
Which material do I need in College Station?
In College Station the clay under the sandy ridge decides the material. The Wilson and Burleson series are expansive clays that swell and shrink with their moisture, so anything carrying a load, a slab, a driveway or a shop, wants select fill placed in 6 to 8 inch compacted lifts. Clay fill dirt is right for bulk volume, raising a low yard, levelling a tract or building a tank, and 4 to 6 inches of topsoil finishes anything that has to grow grass.
What is the ground under College Station made of?
College Station and Bryan sit in the post oak savannah, a belt of sandy loam ridges laid over heavy clay subsoil. The mapped soils here run to the Wilson and Burleson series, moderately to highly expansive clays that swell when they take on water and shrink back when they dry. On the ridge tops you get a workable sandy surface. A few feet down, and across the lower ground between the ridges, the clay takes over and it behaves the way Texas clay always does.
The other feature is the Brazos River and its tributaries. The bottomland along the river carries deep alluvial sandy loam that floods, which is why development climbs onto the terraces above it. Between a fast-growing university city and the farmland turning into subdivisions around it, most of the dirt that moves in this market is building a pad up out of clay or dressing a new lot for grass.
What do people buy dirt for here?
Bryan-College Station has grown hard around Texas A&M, and the farmland on the edges is becoming subdivisions. Every slab over the Wilson and Burleson clay wants a select fill pad in 6 to 8 inch compacted lifts rather than a slab poured on native ground that moves with the seasons.
Outside the city, toward Navasota, Caldwell and Franklin, there are working acreage tracts where dirt goes into building tank dams, levelling for a barn or arena, and shaping driveways. Clay fill by the hundred cubic yards is the order on those jobs, not a yard or two.
A new build here is handed over with subsoil at the surface, and the sandy ridge loam that will grow St. Augustine is not always what is left on the lot. 4 to 6 inches of imported topsoil is what turns a scraped pad into a lawn.
Concrete on expansive clay cracks and lifts. A compacted select fill base under a driveway, a shop slab or a patio is what keeps the concrete from following the clay through a wet spring and a dry August. A 20 foot by 40 foot subgrade is usually a 20 to 30 cubic yard order.
What do the local material names mean?
The Brazos Valley uses standard Central Texas material names, and the words are not interchangeable. Knowing which one your plans mean is the difference between one delivery and two.
The spec-driven, compactable fill placed under pads, slabs and driveways over the expansive clay. Plans usually name a plasticity index ceiling and a compaction percentage against a Proctor test. It is not a grade of fill dirt, it is a different product.
The mineral subsoil bought for volume: raising ground, levelling a tract, filling a low spot, building a tank dam. It runs clay-heavy in this market and it is the cheapest bulk material we deliver here.
Not a graded product so much as a requirement. A stock tank only holds if the clay placed in the dam is heavy enough and compacted well enough to seal. On a pond job the question is the clay quality as much as the yardage.
The workable surface soil of the ridges and the Brazos bottomland. It is what grows well when it is on the surface, which is why a scraped build site often needs it imported back as topsoil before a lawn will take.
How do the expansive clays change what I order?
The central fact of building in the Brazos Valley is the shrink and swell of the Wilson and Burleson clays. In a dry summer the ground pulls back and cracks. After a wet spring it takes on water and lifts. A slab poured on that ground moves with it, which is why the standard answer is to isolate the structure on a pad of imported select fill compacted in lifts to a density the engineer specifies.
For a homeowner adding 20 or 30 cubic yards to a yard this rarely involves a permit, but a subdivision pad or a commercial slab is a different matter, and the compaction specification rather than the material price is usually what decides whether a pad passes. If a geotechnical report is attached to your job, send it and we will tell you whether we can source to it before you order.
On rural tracts the constraint is the clay itself. A tank that will not hold water is a tank built twice, so it is worth being sure the clay going into the dam is up to the job before the excavator starts, not after the pasture stays dry.
How does scheduling and access work here?
College Station is close to our Texas base, on the Highway 6 and I-45 side of the state, so it is one of our faster markets to reach from stock. Standard orders run 1 to 3 days. On very large jobs of around 500 loads or more we can source to the cheapest supply instead, which is worth doing on a subdivision or an acreage levelling job that can sit on a longer window.
Rain is the scheduling variable, the same as everywhere clay is the ground. Saturated Wilson and Burleson clay cannot be placed or compacted, and a loaded truck on a soft lot has to be pulled out. Tell us the site access when you order, because a tight new-build street can take a smaller dump truck when an 18-wheeler cannot turn.
How many yards will my College Station job take?
A residential pad is the volume job here. A 40 foot by 50 foot pad raised 12 inches is about 74 cubic yards in place, and select fill compacted in lifts wants a 20 to 25 percent allowance, so order 89 to 93 cubic yards. Ordering the in-place figure is the usual reason a pad runs short on the last lift.
A lawn is the other common order. A 4,000 square foot yard at 4 inches of topsoil is about 49 cubic yards, and at 6 inches about 74, plus roughly 10 percent for consolidation. Rural levelling and tank work run far larger, routinely 200 cubic yards or more on a single job.
Which cities do we deliver to?
- College Station
- Bryan
- Navasota
- Hearne
- Caldwell
- Brenham
- Franklin
That is the Brazos Valley core. Out toward Somerville, Madisonville and the smaller towns off Highway 6 and 21, ask, because it comes down to haul distance from the pit rather than a county line.
College Station dirt delivery questions
What dirt do I need for a building pad in College Station?
Select fill, placed in 6 to 8 inch lifts and compacted to the percentage your engineer specifies. Building the pad out of imported material rather than reworking the native Wilson and Burleson clay is standard, because that clay changes volume with its moisture through the year.
Can you help me build a pond or stock tank?
We deliver the clay fill for a tank dam by the cubic yard. Whether a tank holds depends on the clay being heavy enough and compacted well enough to seal, so it is worth being sure of the material before the dam goes up. A tank that will not hold is one you build twice.
How much topsoil do I need for a lawn here?
4 to 6 inches over graded ground. A 4,000 square foot yard at 4 inches is about 49 cubic yards and at 6 inches about 74, plus roughly 10 percent for consolidation. New builds usually need it imported because the good ridge loam gets scraped or buried during construction.
Do you deliver to Bryan, Navasota and the acreage around town?
Yes. We list College Station, Bryan, Navasota, Hearne, Caldwell, Brenham and Franklin, and the acreage off Highway 6 and 21 around them is generally reachable. Coverage is a haul distance question, so give us the address and we will answer it straight.
How soon can you deliver in the Brazos Valley?
Most orders run 1 to 3 days from stock, and this is one of our faster Texas markets to reach. On very large jobs of around 500 loads or more we can source to the cheapest supply instead. Rain is the real variable, because saturated clay cannot be placed or compacted.
Need dirt in College Station?
Tell us the address, the cubic yards and the date you need it by. If your address is not on the list above, ask anyway. Coverage is about haul distance.