Bulk Aggregates for Patios in Missouri Valley, IA

Iowa Rock Supply handles gravel and aggregate delivery in Missouri Valley, IA for two kinds of buyers: contractors building patios and flatwork, and homeowners fixing a drive or bedding a walk. Both work on the same ground, and both need Class A roadstone under whatever goes on top.

This part of the Loess Hills and the Missouri River valley sits on wind blown silt that runs deeper than 60 feet in places, so a base course has to carry the load.

Ground and Conditions in Missouri Valley

Loess fails in a particular way. Dry, it holds a near vertical face.

Saturated, it collapses, and runoff cuts steep sided gullies fast.

Under a patio, that shows up as settlement. A thin base lets the slab or the pavers move as the silt beneath shifts with the seasons.

The fix is a compacted roadstone base that spreads the load instead of letting it punch into soft ground. On the flat river bottom west of the bluff line, the water table sits high and the ground stays wet, so a free draining layer matters as much as thickness.

Timing follows the ground. Hill work waits for the silt to dry, because wet loess will not hold a cut.

Bottomland work waits for the spring rise to pass, and both run from the thaw into late fall.

Cold winters bring repeated freeze and thaw, which heaves drives and loosens the silt faces of cuts and banks as the ground thaws.

Materials for Missouri Valley Projects

Bedding under pavers and flatwork is where the choice of material decides how the finished surface behaves. Get the layers right and the patio stays flat.

Base and bedding

Class A roadstone, also called 3/4 inch roadstone, is crushed limestone with the fines left in. Those fines let it bind and compact into a stable base for patios, driveways, parking pads and shed bases.

1 Inch Roadstone, or 1 inch minus, is the coarser grade. It suits a new drive, a soft spot, or a lane carrying heavy equipment, laid under a finer surface course.

Limestone Screenings are the fine material for paver and flagstone bedding, joint filling, and a top dressing over a compacted roadstone base.

Washed Sand beds and levels under slabs and pavers, and works as fill where a clean, free draining grade is wanted.

Drainage and finish

Clean Rock, or clean stone, is washed and open graded, so water moves straight through. Use it for subdrains, pipe bedding, septic rock and backfill behind retaining walls.

3/8" Crushed Stone, sold locally as washed chips, suits seal coat aggregate, fine drainage, paver joints and a thin top dressing.

Riprap, also called revetment stone, armors stream banks, culvert outlets, pond edges and slopes against spring runoff.

Delivery to Missouri Valley and the Surrounding Area

Ordering happens online. You choose a quantity by the ton or by the yard, then pick a delivery date at checkout.

Choosing between tons and yards is the part worth slowing down for. Each product page has a calculator to help size the load before you commit.

A dump truck tips the load on site in one pile. From there the material is yours to move.

Iowa Rock Supply delivers across Harrison County, including Logan, Dunlap, Woodbine, Mondamin and Persia.

Order Your Aggregate for Missouri Valley

Start with the calculator on the product page and settle on a quantity. Then place your order online and choose a delivery date at checkout.

Iowa Rock Supply delivers bulk aggregate across Missouri Valley and the rest of Harrison County.