Rip Rap and Bulk Aggregates for Bunker Hill, IL

Illinois Rock Supply brings gravel and aggregate delivery in Bunker Hill, IL to driveways, drainage work and landscaping jobs. CA-6, the dense graded crushed limestone this market calls road base, is where most base courses start.

Below that base, the ground here is loess over old, weathered drift with a tight claypan subsoil. Water stops at the claypan instead of draining down, so what you build has to move water sideways.

Materials for Bunker Hill Projects

Coarse stone is the first thing to think about on any slope, swale or bank in this county. Heavy broken stone holds ground that moving water would otherwise cut away.

RipRap is the heavy broken stone for bank protection, culvert outlets, pond edges and slope armoring.

At the largest clean size, #4 Crushed Stone handles construction entrances, heavy drainage and trench bottoms.

For track beds, hard standing and severe drainage, Railroad Ballast is the heavy coarse option. Illinois yards sell this size as CA-1 or RR1.

Moving down in size, CA-7 is washed clean stone with no fines, for bedding under pipe, drainage trenches and French drains. 3/4" Crushed Stone, sold locally as CA-11, is the clean washed stone that sits alongside CA-7 for bedding, drainage and concrete work.

At the fine end, Lime Screenings are the crushed limestone fines used for paver and flagstone bedding and for backfill around pipe. CA-6 carries the fines that let it tighten up under a driveway, parking pad or shed base.

Delivery to Bunker Hill and the Surrounding Area

Illinois Rock Supply delivers bulk material to Bunker Hill and the rest of Macoupin County, including Carlinville, Staunton, Gillespie, Virden and Mount Olive. You order online, pick your quantity by the ton or by the yard, and choose a delivery date at checkout.

Each product page has a calculator if you want to size the load before ordering. A dump truck then tips the material on site in one pile.

Before the truck arrives, have the drop spot clear and reachable, with room for a truck to pull in and out. Think about where you want that pile to sit, because it stays where it lands.

Ground and Conditions in Bunker Hill

Across the Southern till plain and claypan country, the season runs longer at both ends than it does upstate. A wet winter and spring still keep sites soft well into April, so late summer and fall are the reliable windows for a delivery.

The claypan sits close to the surface and stops water moving down. Winter and spring rain perches on top of it, ground stays saturated for weeks, and unbound base can pump under traffic.

That is why drainage layers matter as much as base here, and why clean washed stone such as CA-7 or CA-11 belongs in a trench or French drain. CA-6 belongs under a drive or pad, where its fines let it tighten up.

Erosion follows the same pattern: sheet and gully erosion where thin loess is bared, and bank scour where water concentrates. RipRap and other coarse stone armor those spots instead of letting them cut further.

Winters here are cold but shorter than in the north, with frequent freeze and thaw swings that work on saturated clay and heave drives and walks. Frost depth runs about 30 to 36 inches in this part of the state, and the local building department sets the figure that applies to your job.

Questions About Stone and Delivery in Bunker Hill

What stone should I use for drainage in Bunker Hill?

Use clean washed stone with no fines for drainage. CA-7 and CA-11, the 3/4 inch washed sizes, are the standard choices for French drains, foundation drains and bedding under pipe.

CA-16 chips work where you need a smaller 3/8 inch stone. CA-6 is a base material, so keep it out of a drainage trench where you want water to move freely.

What should I have ready when the truck arrives?

Have the drop area clear, open and reachable so a dump truck can pull in and out without obstruction. A dump truck tips the load in one pile, so decide where that pile should sit before the delivery date.

Keep vehicles, toys and anything fragile away from the spot, and make sure the ground there can carry a loaded truck.

Order Gravel and Stone for Bunker Hill

Illinois Rock Supply covers Bunker Hill and the surrounding Macoupin County area with bulk gravel, stone, sand, soil and mulch delivered to your site. Pick your material, set your quantity, and choose a delivery date at checkout to get your order moving.