Should I order material by the ton or by the yard?

Both work. Order by the ton when you know the weight you want, and by the yard when you are thinking in volume. Each product page has a calculator to help you size the load either way, and you choose the quantity at checkout.

Which stone is best for drainage in Mahaska County?

Washed, open graded stone is the drainage choice. Clean Rock and 3/4" Crushed Stone both let water move straight through, which suits subdrains, pipe bedding, septic rock and backfill behind retaining walls. The clay subsoil here does not take water, so an open stone layer carries it away instead.

What do I need to have ready for a bulk delivery?

Have the spot clear and reachable by a dump truck, with room for the pile. The truck tips the load in one pile on site, so pick a place that keeps the material out of the way of your work. Then order online and choose a delivery date at checkout.

Mahaska County, IA Aggregate and Rock Delivery

Iowa Rock Supply brings gravel, stone and aggregate delivery in Mahaska County, IA to drives, pads, gardens and building sites. Order online and a dump truck tips the load on site.

Start with Class A roadstone, the crushed limestone base course Iowa calls roadstone. It carries the fines that bind and compact, which is what a drive, a parking pad or a farm lane needs underneath.

Materials Delivered in Mahaska County

Class A roadstone is the standard base course here.

11 and Class C gravel to Gradation No. 10.

County engineers and city entrance standards call the same material roadstone and write it as Class A roadstone.

Order Class A Roadstone for driveways, parking pads, shed bases and farm lanes.

Where a new drive, a soft spot or a lane carrying heavy equipment needs a coarser start, 1 Inch Roadstone goes down under a finer surface course. For a drive or lane that has thinned out, Driveway Gravel tops a compacted roadstone base.

Washed, open graded stone moves water straight through. Clean Rock suits subdrains, drainage tile backfill, pipe bedding, septic rock and backfill behind retaining walls.

3/4" Crushed Stone gives a loose, free draining drive surface plus pipe bedding and trench backfill.

Finer material handles bedding and joints. Limestone Screenings bed pavers and flagstone, fill joints and dress the top of a compacted roadstone base.

3/8" Crushed Stone, sold as washed chips, covers seal coat aggregate, fine drainage and paver joints.

Slope and stream work takes larger stone. Riprap, called revetment stone, armors stream banks, culvert outlets, pond edges and slopes against spring runoff.

Section 4130 covers revetment stone, erosion stone and gabion stone by class letter, and Section 4123 covers modified subbase.

Ground work rounds out a load. Top Soil, screened black dirt, handles lawn repair, grading and bed prep.

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

Choosing the Right Material

Jasper County, Wapello County and Marion County all sit on the same ground region as Mahaska County: the Southern Iowa Drift Plain. The ground is the same, so the base and drainage choices are the same.

Across the Southern Iowa Drift Plain, old pre-Illinoian till sits under a windblown loess mantle, usually 5 to 30 feet thick, with buried paleosols beneath. The Yarmouth-Sangamon paleosol is a thick, gummy grey clay that water will not move through, and farmers call working in it gumbo.

That clay decides the material. A fines-bearing base like Class A roadstone binds and compacts on top of it.

Clean, open graded stone such as Clean Rock or 3/4" Crushed Stone carries water away instead of holding it.

Pick by what the ground has to do. Base under a drive wants roadstone.

A drainage run, a subdrain or a wall backfill wants washed stone. Bedding and joints want screenings or sand.

Ground Conditions Across Mahaska County

The failure a thin base shows here starts underneath it. Steeply rolling ground drains at the surface, but the clay subsoil does not take water, so it perches and runs off.

Drives go soft at the bottom of a grade.

Spring rain on saturated clay is the worst of it. This is Iowa's most eroded landscape, and streams cut deeply.

Hillslopes carry a fine texture of rills, and gully and stream bank erosion after heavy rain is the main reason rock goes in on slopes and outlets.

Riprap and clean stone answer that. Riprap armors a bank or an outlet, and clean, open graded stone lets water pass instead of building pressure behind it.

The working season here is the longest in the state, but clay soils need to dry before anything gets compacted. A wet spring pushes base work back several weeks.

Cold winters bring repeated freeze-thaw, milder than the north but still enough to heave gravel drives and lanes every spring.

Delivery Across Mahaska County

Order online and choose a quantity by the ton or by the yard. Each product page has a calculator to help you size the load before you order, and you pick a delivery date at checkout.

A dump truck tips the load in one pile on site. Delivery covers Oskaloosa, New Sharon, Fremont, Beacon, Rose Hill, Leighton, Barnes City and Cedar, along with the rest of Mahaska County.

Order Gravel, Stone and Topsoil in Mahaska County

Size your load with the calculator on any product page, then order by the ton or by the yard. Class A roadstone, clean rock, screenings, riprap, topsoil and fill dirt all deliver across Mahaska County.

Place your order online and a truck brings it to your site.

Mahaska County, IA Gravel and Landscape Rock Delivery