Gravel, Stone and Soil for Sangamon County, IL
Water stands on this ground rather than runs. Gravel, stone and aggregate delivery in Sangamon County, IL starts with that fact, because flat ground over dense clay subsoil holds what falls on it.
Illinois Rock Supply delivers CA-6 and the rest of the aggregate line to Springfield, Chatham, Auburn and the towns around them.
CA-6 is the Illinois base material: dense graded crushed limestone with the fines left in. It goes under driveways, parking pads, shed bases and trench backfill.
Ground Conditions Across Sangamon County
Sangamon County sits on the Grand Prairie till plain of central and eastern Illinois. That region is flat to gently rolling Wisconsin Episode till under deep, dark prairie silt loams, with long moraine ridges crossing the plain and silty lake beds in the old slack-water basins.
Underneath, the subsoil is dense clay and the natural fall is slight. Water sits after heavy rain instead of draining away, which is why so much farmland in this part of the state is tile drained.
That matters for what you build. A base course laid on ground that stays wet will pump and rut, so the ground has to be shaped to shed water before stone goes down.
Erosion on the Grand Prairie till plain comes in three forms: sheet erosion off bare silt loam, gullying where runoff concentrates, and stream bank scour after heavy rain. Bare ground and concentrated flow are the two things to watch.
Frost heave shows up in gravel drives, walks and shallow slabs each spring across this part of Illinois. Frost depth runs about 36 inches through most of central and eastern Illinois, and the local building department sets the figure that applies to your footing.
Base, driveway and paver work runs from the spring thaw into late fall here. The ground is slow to dry in a wet spring and frozen solid through the winter.
Materials Delivered in Sangamon County
Order by project. A driveway, a patio, a drain and a garden bed each take a different material, and the local names below are what Illinois yards use.
CA-6 carries the base work. It is dense graded crushed limestone with the fines left in.
Driveways, parking pads, garage and shed bases and trench backfill all start there.
Clean stone handles water. CA-7 and CA-11 are washed stone with no fines, for bedding under pipe, drainage trenches and concrete flatwork.
CA-16 chips are the 3/8 inch size for permeable paver bedding and drainage around tanks.
Lime screenings bed pavers and flagstone and backfill around pipe. Torpedo sand, the coarse washed sand Illinois yards sell, goes into concrete and leveling.
Mason sand is the finer clean sand for brick and block mortar, paver joints and sandboxes.
For beds and borders, river gravel and large river rock are rounded decorative stone. Natural Pea Gravel covers walkways and play areas.
Screened topsoil and garden soil handle lawns and planting beds, and fill dirt raises grade before a CA-6 base course goes down.
Choosing the Right Material
Macoupin County and Montgomery County sit on the southern till plain and claypan country. That ground is loess over old, weathered Illinoian drift, with a tight claypan subsoil that gives south central Illinois its reputation for hard, slow ground.
That is a different profile from Sangamon County's prairie silt loam over dense clay till. Where a claypan sits under the soil, water perches on it and moves sideways rather than down, so drainage stone and a shaped grade matter more than they do on deeper ground.
Morgan County spans more than one zone, covering Western Illinois loess uplands and the Mississippi border country along with the Illinois River valley and its sand areas. Sandy ground there drains faster than the till plain, so a base course behaves differently.
On Sangamon County ground, the material choice follows the water. Use CA-6 where you need a compacted base that sheds water.
Use CA-7 or CA-11 where you need a clean drainage layer that lets water through.
Delivery Across Sangamon County
Order online and pick a quantity by the ton or by the yard. Each product page has a calculator if you need to size the load, and you choose a delivery date at checkout.
A dump truck tips the load in one pile on site. Delivery covers Springfield, Chatham, Auburn, Sherman, Rochester, Riverton, Pawnee, Williamsville, New Berlin, Divernon, Loami, Illiopolis, Mechanicsburg and Pleasant Plains.
Order CA-6 and Aggregate for Sangamon County
CA-6 is the base material this ground calls for, and it is the one to start with on a driveway, a pad or a trench. Illinois Rock Supply delivers gravel, stone, sand and soil across Sangamon County.
Size your load on the product page and place the order online.