Buy Clean Rock in Johnston, IA

Order gravel and aggregate delivery in Johnston, IA the easy way. Iowa Rock Supply sells bulk material by the ton or the yard, and a dump truck tips it on your site.

Start with Class A roadstone, the crushed limestone base course this market builds on. It carries the fines that bind and compact under a drive.

Materials for Johnston Projects

Base and driveway surfacing is where most Johnston ground work starts. Class A roadstone is the standard base course for drives, parking pads, shed bases and farm lanes.

It is crushed limestone with the fines left in, so it tightens up under a plate compactor.

For a new drive, a soft spot or a lane that carries heavy equipment, step up to 1 inch roadstone. Lay it as the lower course and finish over it with a finer surface.

Top an existing drive that has thinned out with driveway gravel over a compacted base. Garden paths and walkways that want a finer, walkable surface take walkway gravel instead.

Washed stone handles water. Clean rock is open graded, so water moves straight through it.

Use it for subdrains, drainage tile backfill, pipe bedding, septic rock and backfill behind retaining walls.

3/4 inch clean stone covers drive surfacing where a loose, free draining stone is wanted. Limestone screenings bed pavers and flagstone, fill joints and dress the top of a compacted base.

Sand and soil round out the order. Mason sand mixes brick and block mortar and fills paver joints.

Washed sand beds and levels under slabs and pavers. Black dirt, the local name for screened topsoil, repairs lawns and preps beds.

Fill dirt raises grade and backfills before a roadstone course goes down.

Decorative stone finishes the yard. River rock and large river rock build dry creek beds and borders.

Natural Pea Gravel suits walkways, play areas and patio bedding. Riprap armors culvert outlets, pond edges and slopes against spring runoff.

Ground and Conditions in Johnston

Water is the driver here. Johnston sits on the Des Moines Lobe, and the drainage network across this part of the state is young and inefficient.

Kettles and closed depressions hold water.

Most of the ground only drains at all because it is tiled. Snowmelt and spring rain sit on the surface where the ground below is still frozen.

The soil is thick, compact pebbly loam till of the Dows Formation, 45 to 60 feet deep. Sand and gravel run along old meltwater channels, and moraine ridges leave hummocky, stony ground.

That shapes material choice. Where water stands, a clean, open graded stone moves it and a fines-bearing base does not.

Where the ground is soft, 1 inch roadstone carries a lane before a finer course goes over it.

Erosion here is less about slope and more about concentrated flow. Ditch and tile outlet scour, bank cutting on the Des Moines, Boone and Iowa rivers, and washouts where runoff gathers on the moraine ridges.

Riprap at an outlet holds that flow back.

Timing matters. Compaction waits for frost to come out and for flat ground to shed spring water.

Base and paver work runs from late spring to the fall freeze, and a wet spring shortens that window.

Long, cold winters bring repeated freeze-thaw that heaves gravel drives, lanes and field entrances as the ground lets go in spring. Frost depth in this part of Iowa is commonly 42 inches.

The local building official sets footing depth, and northern jurisdictions may ask for more.

Delivery to Johnston and the Surrounding Area

Bulk material arrives by dump truck and tips in one pile at the drop point you choose. Have that spot clear and reachable, and know where you want the pile to sit before the truck backs in.

Order online. Pick your material, choose a quantity by the ton or by the yard, and each product page has a calculator to help size the load.

Pick a delivery date at checkout.

Iowa Rock Supply delivers across Johnston and Polk County, including Des Moines, Ankeny, Altoona, Grimes and Clive.

Questions About Ordering in Johnston

Do you supply contractors working in Johnston?

Yes. Iowa Rock Supply sells bulk aggregate to contractors and homeowners alike, ordered online by the ton or the yard.

Builders, excavators and landscape crews order the same materials for drive bases, drainage work, paver bedding and grading. Deliveries run across Johnston and Polk County, including Des Moines, Ankeny, Altoona, Grimes and Clive.

Do you deliver Class A roadstone to Johnston, IA?

Yes. Class A roadstone is the crushed limestone base course this market builds drives, parking pads and lanes on, and it delivers to Johnston and the rest of Polk County.

Choose your quantity by the ton or the yard when you order, and a dump truck tips the load on site. For a coarser lower course, 1 inch roadstone is also available.

Order Base, Stone and Soil for Johnston

Iowa Rock Supply covers drive bases, paver bedding, drainage runs, grading, raised beds and decorative stone across Johnston. Order online, size the load, and pick a delivery date.

Place your order and get bulk material dropped at your site.