Bulk Material Delivery in Marshalltown, IA

Iowa Rock Supply handles gravel and aggregate delivery in Marshalltown, IA, by the ton or by the yard. Class A roadstone is the crushed limestone base course this market builds drives, pads and farm lanes on.

The ground here sits on the Iowan Surface, where loamy glacial till and a thin, patchy loess cover leave a pebble band near the surface. That shallow layer shapes how water moves and how fast a base settles.

Materials for Marshalltown Projects

Washed stone is the open graded, clean side of the yard. Water runs straight through it, so it belongs in French drains, drywells, downspout runs and any trench meant to move water away from a building.

Start coarse and work down. Clean Rock is washed and open graded, sized for subdrains, drainage tile backfill, pipe bedding and septic rock.

#4 Crushed Stone is a larger clean stone for heavy drainage, construction entrances and trench bottoms.

#57 Stone and #67 Stone sit a step smaller. Both work as concrete aggregate and in drainage runs, and Iowa concrete stone gradations are written D57 and D67.

At the fine end, 3/8" Crushed Stone is washed chips, used for seal coat aggregate, fine drainage, paver joints and a thin top dressing. #89 Crushed Stone is a small washed stone for tight bedding and paver joints.

For the fines side, Class A Roadstone is the standard Iowa base course, a 3/4 inch crushed limestone with the fines left in so it binds and compacts. Limestone Screenings bed pavers and flagstone and fill joints.

Delivery to Marshalltown and the Surrounding Area

You order online. Pick the material, choose a quantity by the ton or by the yard, and set a delivery date at checkout.

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

Marshalltown sits in Marshall County, and delivery reaches the rest of the county as well, including State Center, Melbourne, Albion, Gilman and Liscomb. Each product page carries a calculator if you want to size a load before you order.

Ground and Conditions in Marshalltown

Across the Iowan Surface, drainage networks are well established but stream gradients are low. Water moves slowly, and pockets of old wetland ground still hold it.

Limestone aquifers keep rivers running in dry spells and can put groundwater close to the surface.

That matters for any trench, drywell or downspout run. Where groundwater sits high, a clean open graded stone lets water pass instead of trapping it against a foundation.

Erosion on this ground comes as sheet wash on long, low slopes and gully cutting where runoff concentrates. Riprap armors culvert outlets, pond edges and banks against spring runoff.

Work starts once frost is out and the low ground has drained, and runs to the fall freeze. Low spots stay soft well after the uplands are ready, so timing a delivery matters as much as the material itself.

Northern Iowa winters bring a long frozen season and repeated freeze-thaw that lifts gravel drives, walks and slabs each spring.

Order Bulk Aggregate in Marshalltown

Iowa Rock Supply delivers Class A roadstone, washed stone, sand, soil and mulch across Marshalltown and Marshall County. Choose your material, order by the ton or the yard, and pick a delivery date at checkout.

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