Order SB-2 Base and Crushed Stone in Crawford County, AR
Arkansas Rock Supply handles gravel, stone and aggregate delivery in Crawford County, AR. If you are building a drive, a pad or a drainage run, the material to start with is SB-2 base.
SB-2 is the dense graded 1 1/2 inch minus crushed stone that Arkansas yards sell by that name. It carries the fines, so it locks up under a roller.
This county spans two ground regions, the Arkansas River Valley around Van Buren and Alma and the Boston Mountains around Mountainburg and Chester, and the ground under your project decides how much base you need.
Ground Conditions Across Crawford County
Water is the driver here, and where it goes depends on which side of the county you are on. In the Arkansas River Valley, bottomland sits over clay subsoils that let go of water slowly, and the water table runs high near the river.
That means a base course over valley clay needs to shed water rather than sit in it. A compacted SB-2 layer over a soft, wet subgrade will pump and break down.
In the Boston Mountains, shale beds perch water above the rock, so slopes stay wet and slick. The sandstone above sheds rain straight down the hollow, and a steep gravel drive takes water arriving from uphill, not just the rain that falls on it.
Erosion follows the same split. Valley ground sees bank scour and flood flow along the river and its lakes, plus sheet erosion off bare clay in spring thunderstorms.
Timing matters too. Valley work runs nearly all year, with a wet late winter and spring as the real limit.
Frost is shallow in this part of Arkansas, and no statewide frost depth is published. The Arkansas residential code has each jurisdiction set the frost line and requires exterior footings at least 12 inches below undisturbed ground.
Materials Delivered in Crawford County
SB-2 base is the standard Arkansas base material and the one to order when you are building something that has to hold up. It is a dense graded 1 1/2 inch minus crushed stone with the fines left in.
Cities and counties across Arkansas write Class 7 into their own street, sidewalk and parking standards, and Class 7 is the same material under the name engineers use.
Section 302 covers select material used as a foundation course underneath.
When you are working to a written spec, order it as Class 7 base.
Class 8 base is the 1 inch minus dense graded base quarries sell alongside Class 7, for the same uses in a tighter size. Crusher run is another dense graded material that binds and compacts, and it works for drives and pads where a finer gradation is wanted.
Washed stone handles everything that needs to move water. #57 Limestone is the workhorse washed size, used for French drains, foundation and pipe drainage, concrete aggregate and a clean top over a compacted base.
3/4" Crushed Stone goes into drainage beds, construction entrances and drive surfacing anywhere a washed stone with no fines is wanted.
Screenings are the Arkansas trade name for crusher fines, used for paver, flagstone and brick bedding, joint filling and a tight walking surface. RipRap armors banks and slopes on creeks, lake edges, culvert outlets and ditch checks.
Sand and soil round out a project. Washed Sand is bedding, leveling and sand under slabs and pools.
Mason Sand is for brick, block and stone work, paver joints and play sand. Top Soil covers lawns, grading and bed prep, and buyers here usually want it screened.
Fill Dirt raises low ground and builds a pad up out of the wet before a base course goes on.
For decorative work, Arkansas River Rock fills beds, borders, dry creek beds and splash pads. Arkansas suppliers say river gravel or creek gravel at least as often as river rock.
3/8" Natural Pea Gravel suits walkways, play areas, dog runs and drainage, and it usually arrives brown or beige, rounded and washed out of river gravel deposits.
Delivery Across Crawford County
Bulk material arrives by dump truck and tips in one pile on site. The driver does not place or spread the load, so the drop point needs to be somewhere the truck can reach and somewhere you are happy to work from.
Have the spot clear before the truck arrives. Overhead lines, low branches, soft ground and parked vehicles all get in the way of a truck that has to back in and tip.
Ordering runs online. You choose a quantity by the ton or by the yard, and each product page has a calculator if you need to size the load.
Delivery covers Van Buren, Alma, Mulberry, Cedarville, Mountainburg, Rudy, Uniontown, Chester and Natural Dam. A steep mountain drive and a flat valley lot take the same truck, but the ground at the drop point is worth a look before the date.
Choosing the Right Material
Washington County sits in the Ozark Mountains and spans the Ozark Plateaus and the Boston Mountains. That is a different ground region from Crawford County, and the mountain slopes there share the wet shale and thin ridge soil you find on the Boston Mountains side of this county.
Sebastian County and Franklin County both sit in the Arkansas River Valley, on the same deep silt loam and clay over shale and sandstone uplands that runs through the valley part of Crawford County. The ground is the same, so the base and drainage choice is the same.
Where the ground is clay bottomland, a compacted SB-2 base is the starting point, and washed stone goes in wherever water needs to move. Where the ground is steep and rocky, drainage matters as much as base, and rip rap protects the slopes that take the most runoff.
Order Gravel, Stone and Aggregate in Crawford County
Arkansas Rock Supply delivers SB-2 base, washed stone, sand, soil, fill and decorative rock across Crawford County. That covers driveways, parking pads, building pads, drainage runs, patios, walkways, garden beds and slope protection from Van Buren and Alma to Mountainburg and Chester.