What is Class A roadstone and what is it used for in Clay County?

Class A roadstone is crushed limestone with the fines left in, so it binds and compacts into a firm base. It goes under driveways, parking pads, shed bases and farm lanes.

How deep should a gravel driveway base be in Clay County?

No single depth fits every site. The ground here is compact pebbly loam till, and it stays wet in spring where the drainage is poor. Frost depth is commonly 42 inches, but that figure is a footing depth set by the local building official, not a gravel base depth. Size your base to your own ground and traffic.

How much gravel do I need for my project?

Each product page has a calculator you can use to size the load. Quantities are ordered by the ton or by the yard, and you pick a delivery date at checkout.

Clay County Class A Roadstone and Gravel Delivery, IA

Looking for gravel, stone and aggregate delivery in Clay County, IA? Iowa Rock Supply sells bulk material online and runs it to your site by the ton or the yard.

Start with Class A roadstone, the crushed limestone base course this part of Iowa builds drives and pads on. Order it for driveways, parking pads, shed bases and farm lanes.

Delivery across Clay County

You order online and pick a delivery date at checkout. A dump truck tips the load in one pile at your site.

Coverage runs across the county, including Spencer, Everly, Royal, Peterson, Dickens, Webb and Greenville. Quantities are ordered by the ton or by the yard, and each product page has a calculator to help you size the load.

Materials delivered in Clay County

Class A roadstone is the standard base course here.

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

It is crushed limestone with the fines left in, so it binds and compacts. That makes it the right choice under a drive, a parking pad or a farm lane.

Ground conditions across Clay County

This is pothole country on the Des Moines Lobe. The drainage network is young and inefficient, kettles and closed depressions hold water, and most of the ground only drains because it is tiled.

Snowmelt and spring rain sit on the surface where the ground below is still frozen. That is why a clean, open graded stone matters for subdrains and pipe bedding.

Compaction waits for the frost to come out and for the flat ground to shed its spring water. Base and paver work runs from late spring to the fall freeze, and a wet spring shortens that window.

Winters here are long and cold, with repeated freeze-thaw that heaves gravel drives, lanes and field entrances as the ground lets go in spring. Frost depth is commonly 42 inches, and the local building official sets footing depth.

Choosing the right material

O'Brien County, Cherokee County and Osceola County all sit on the Northwest Iowa Plains, where older glacial deposits lie under a loess mantle. Clay County sits on the Des Moines Lobe, the youngest glacial ground in Iowa.

That difference shows up in the soil. The Des Moines Lobe carries thick, compact pebbly loam till of the Dows Formation, 45 to 60 feet deep, with sand and gravel along old meltwater channels.

On ground that holds water, a clean open graded stone for drainage matters more than it would on long, even slopes. Riprap covers bank cutting and washouts where runoff concentrates.

Order bulk gravel and stone in Clay County

Iowa Rock Supply delivers bulk gravel, stone, sand and topsoil across Clay County, including Spencer, Everly, Royal, Peterson, Dickens, Webb and Greenville. Choose your material, size the load by the ton or the yard, and pick a delivery date at checkout.

Bulk Gravel and Stone Delivery in Clay County, IA