Gravel, Stone and Soil for Stephenson County, IL
Illinois Rock Supply delivers gravel, stone and aggregate delivery in Stephenson County, IL, and timing the load matters here. Work runs from the spring thaw into late fall, and a wet spring is the hard part.
On steep ground, loess turns greasy and a truck can tear up a soft drive. Order CA-6, or road base, once the ground firms up and the pile lands on ground that can take the weight.
Ground conditions across Stephenson County
Across the Driftless and old-drift northwest, the ground is wind-blown loess over dolomite and limestone. Soil sits thin on the ridges, and valley sides are steep with rock close to the surface.
A thin base over that ground shows its failure fast. Water moves down the slope instead of soaking in, and the surface ruts out where the stone is shallow.
Steep ground also moves water quickly into narrow valleys. Springs and seeps come out of the dolomite, and heavy rain runs off the loess ridges before it can soak in.
That runoff has to go somewhere. If it crosses a drive, it takes the fines with it and leaves ruts behind.
The erosion pattern follows the same slope. Gullies and rills cut into loess on steep grades, and cut banks slump and drop rock.
Frost works harder on thin soils over rock and on cut slopes than it does on deep, level ground. Cold winters bring sharp freeze and thaw cycles here.
The frost depth is about 42 inches, in line with the rest of northern Illinois, and the local building department sets it. Footing depth is that office's call, not a rule for a gravel drive.
Materials delivered in Stephenson County
CA-6 is the base material for this part of Illinois.
Article 1004.01 sets the coarse aggregate gradations CA 1 through CA 20, so dense graded base is CA-6.
Order CA-6 for driveways, parking pads, shed and garage bases and trench backfill. It compacts into a surface that carries a load because the fines bind the stone together.
Clean stone is the other half of the work. CA-7 is washed 1 inch stone with no fines, and Article 1004.01 lists it for bedding under pipe, drainage trenches, French drains and concrete flatwork.
3/4" Crushed Stone is the CA-11 gradation, the 3/4 inch clean washed stone sold alongside CA-7 for bedding, drainage and concrete work.
CA-16 Chips are 3/8 inch chips for permeable paver bedding, drainage around tanks and topping a compacted base.
Delivery across Stephenson County
Ordering happens online. You choose a quantity by the ton or by the yard, pick a delivery date at checkout, and a dump truck tips the load on site.
Tons or yards is the first decision. Each product page has a calculator to size the load before you order.
Illinois Rock Supply delivers across the county, including Freeport, Lena, Orangeville, Pearl City, Kent, Dakota, German Valley, Davis, Rock City, Winslow, Ridott and McConnell.
A bulk delivery is one pile tipped where the truck can reach. Plan for a spot on firm ground, because a loaded truck on soft loess is hard to move.
Choosing the right material
Winnebago County and Ogle County sit on Northern Illinois till plains and Rock River country. That ground is Wisconsin Episode till and loamy prairie soils over dolomite, broken by rocky hill country.
Stephenson County ground is different. It is the Driftless and old-drift northwest, where the ice never covered the land.
That difference matters for a base. Deep till holds a driveway pad better than thin loess over rock, so a steep Stephenson County pad needs clean stone at the edges to move water away.
Jo Daviess County shares this ground region. Its soil, slopes and rock sit close to the surface the same way, so the material choices run the same.
On a slope here, keep fines-bearing base away from the edge and use CA-7 or CA-11 where water has to drain.
Order gravel and stone for Stephenson County
Start with the quantity. Use the calculator on the product page to size your load in tons or yards, then choose a delivery date at checkout.
Illinois Rock Supply brings CA-6, clean stone, sand, topsoil and mulch to Stephenson County addresses.