Order Gravel, Stone and Soil in Onslow, IA

Iowa Rock Supply handles gravel and aggregate delivery in Onslow, IA, with the materials this part of Jones County builds on. Class A roadstone is the standard base course here: crushed limestone with the fines left in, so it binds and compacts under driveways, parking pads, shed bases and farm lanes.

The ground around Onslow is loamy glacial till, planed down and covered with a thin, patchy layer of loess. That shallow, uneven profile is why so much work here starts with fill and a fresh base.

Delivery to Onslow and the Surrounding Area

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

A dump truck tips your material in one pile at the delivery address. The driver does not spread it or place it, so plan where you want the pile to sit before the truck arrives.

Iowa Rock Supply delivers across Onslow and the rest of Jones County, including Anamosa, Monticello, Olin, Oxford Junction and Wyoming.

Materials for Onslow Projects

Raising grade and building up a pad is the work that shapes most of this list. Fill and sub-base go down first, then a compacted course over the top.

Start with Fill Dirt for raising grade, filling low ground and backfilling before a roadstone course goes down. It comes as clay fill dirt or sandy fill dirt depending on what the site needs.

Over that, Class A Roadstone is the 3/4 inch crushed limestone base course for drives, pads and lanes. For a new drive or a lane that carries heavy equipment, 1 Inch Roadstone is the coarser grade that goes down under a finer surface course.

Where a pad or slab needs a clean, free draining layer, Clean Rock is washed and open graded, so water moves straight through it. It also backfills drainage tile, pipe bedding and retaining walls.

For bedding and leveling, Washed Sand goes under slabs and pavers, and Limestone Screenings bed pavers and flagstone and fill their joints.

Lawn repair and bed prep take Top Soil, the screened black dirt Iowa yards call for after grading.

Ground and Conditions in Onslow

Across the Iowan Surface, the till is loamy and the loess cover is thin and patchy. A residual stone line or pebble band often sits near the surface, and large granite and quartzite erratics turn up in the fields.

Drainage networks here are well established, but stream gradients are low, so water moves slowly and old wetland pockets still hold it. Groundwater can also sit close to the surface.

A base built over soft, wet ground will not hold, which is why fill and sub-base come first.

Runoff on the long, low slopes does two things: sheet wash across the surface, and gully cutting where it concentrates. Both are worth planning around when you set a pad or a lane.

Hard winters and repeated freeze-thaw lift gravel drives, walks and slabs each spring. Frost depth in this part of Iowa is commonly 42 inches, and the local building official sets footing depth.

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.

Questions About Ordering in Onslow

What is the best base under pavers in Onslow?

A compacted course of Class A roadstone, then limestone screenings for bedding. The screenings are the fines, and they bed the paver and fill the joint.

If the ground below is soft or wet, fill dirt goes in first to raise the grade before the roadstone goes down.

Do you supply contractors working in Onslow?

Yes. Iowa Rock Supply sells to contractors and homeowners alike across Onslow and Jones County.

You order online, choose a quantity by the ton or by the yard, and pick a delivery date at checkout. A dump truck tips the load in one pile at the site.

Order Roadstone and Fill for Your Onslow Site

Class A roadstone is the base course that carries driveways, pads and lanes across this part of Iowa, and fill dirt is what gets the grade up to meet it. Order online, size the load on the product page, and Iowa Rock Supply will deliver it to your site in Onslow.