Large River Rock and Bulk Aggregates for Cooper, IA

Iowa Rock Supply handles gravel and aggregate delivery in Cooper, IA, and the ground here asks for stone that moves water. This is pothole country on the Des Moines Lobe.

Kettles and closed depressions hold spring melt until it finds a low spot.

Class A roadstone builds the base. Coarse stone takes the water.

Order both by the ton and a truck tips the load on your site.

Materials for Cooper Projects

Slope, swale and bank work starts with coarse, open stone. Washed material lets runoff pass instead of stacking up behind it.

That is the first call on ground that sheds water slowly.

Riprap armors stream banks, culvert outlets, pond edges and slopes that take spring runoff. Iowa specifies it as Class D or Class E revetment.

The angular stone locks together and stays put when water runs hard against it.

Clean Rock, sold as 1 inch clean and 1 1/2 inch clean, goes in subdrains, drainage tile backfill, pipe bedding and behind retaining walls. It is washed and open graded, so water moves straight through the void space.

3/4" Crushed Stone surfaces drives that want a loose, free draining layer. It also beds pipe and backfills trenches.

3/8" Crushed Stone, the washed chips Iowa quarries sell, seals coats and fills paver joints.

For the compacted side of the job, Class A Roadstone is the standard base course: 3/4 inch crushed limestone with the fines left in, so it binds and compacts. 1 Inch Roadstone is the coarser grade for a new drive, a soft spot or a lane carrying heavy equipment, laid under a finer surface course.

Delivery to Cooper and the Surrounding Area

Cooper sits in Greene County, and delivery covers the town and the surrounding area, including Jefferson, Grand Junction, Scranton, Churdan and Paton. You order online and pick a delivery date at checkout.

Quantities are ordered by the ton or by the yard. Each product page has a calculator if you want to size a load before you order.

A dump truck then tips the material in one pile on your site.

Have the drop spot clear and reachable before the truck arrives. Bulk loads need room to back in and turn around.

Ground and Conditions in Cooper

Timing drives the season here. Compaction waits for the frost to come out and for 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.

The ground is thick, compact pebbly loam till, 45 to 60 feet deep across the Des Moines Lobe. Sand and gravel run along old meltwater channels, and the moraine ridges are hummocky and stony.

Drainage is the real constraint. This is pothole country, and the drainage network is young and inefficient.

Most ground only drains because it is tiled, and snowmelt sits on the surface where the ground below is still frozen.

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

Riprap and clean rock answer that directly.

Winters 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 across the Des Moines Lobe, and the local building official sets footing depth.

Questions About Stone in Cooper

What stone should I use for drainage in Cooper?

Use washed, open graded stone so water passes through instead of pooling. Clean Rock in 1 inch or 1 1/2 inch sizes suits subdrains, tile backfill and pipe bedding.

For slope, swale and bank protection, riprap is the coarse answer. Where you want a compacted surface instead, Class A roadstone is the base course.

What should I have ready when the truck arrives?

Clear the drop spot and keep the approach open. A dump truck tips the load in one pile, so it needs room to back in and pull out.

Mark the spot you want the pile if that helps you find it later. Order by the ton or the yard and pick your delivery date at checkout.

Order Bulk Stone for Cooper

Iowa Rock Supply delivers bulk gravel, stone, sand and topsoil across Cooper and the rest of Greene County. Pick the material, order by the ton or the yard, and choose your delivery date at checkout.

Place your order online and we will get a truck out to your site.