Gravel, Stone and Soil for Dickinson County, IA
Iowa Rock Supply brings gravel, stone and aggregate delivery in Dickinson County, IA to driveways, farm lanes, shorelines and building pads. Class A roadstone is the base most of that work starts from.
This is pothole country on the Des Moines Lobe, where the ground only drains at all because it is tiled.
Order online by the ton or the yard, size the load on the product page, and a dump truck tips it on site.
Materials Delivered in Dickinson County
Class A roadstone is 3/4 inch crushed limestone with the fines left in, so it binds and compacts into a base.
11 and Class C gravel to Gradation No. 10.
County engineers and city entrance standards call the same material roadstone. Order it for driveways, parking pads, shed bases and farm lanes.
Around the base course you also have 3/8 inch washed chips for seal coat aggregate and paver joints, and Natural Pea Gravel for walkways, play areas and patio bedding. Where a soft spot or a ditch needs a drainage layer instead of a compacted one, clean rock and 3/4 inch clean stone both stay open.
Riprap, also called revetment stone, armors stream banks and slope toe against spring runoff, and Section 4130 covers it by class letter. For soil work, screened black dirt handles lawn repair and bed prep, fill dirt raises grade before a roadstone course goes down, and shredded hardwood mulch holds moisture through a dry Iowa August.
Choosing the Right Material
Dickinson County sits on the Des Moines Lobe, the youngest glacial ground in Iowa: thick, compact pebbly loam till of the Dows Formation, 45 to 60 feet deep, with sand and gravel along old meltwater channels.
Emmet County and Clay County share that same ground region, so the base and drainage choices there work from the same till. Osceola County is different.
It lies on the Northwest Iowa Plains, where older glacial deposits sit under a loess mantle that thins from about 16 feet toward the northeast, giving long, even slopes, and Sioux quartzite bedrock comes to the surface in the far northwest corner.
That difference matters at the base. On Dickinson County till, water that gets into the ground has nowhere quick to go, so a compacted roadstone base and an open drainage layer under it do different jobs.
On loess-mantled ground, the surface sheds differently. Sand and gravel along old meltwater channels also give you pockets that drain faster than the till around them, which is why two drives in the same township can behave nothing alike.
Ground Conditions Across Dickinson County
Across the Des Moines Lobe, ditch and tile outlet scour, bank cutting, and washouts where runoff concentrates are the common erosion patterns. Class A roadstone gives you a compacted surface that sheds water rather than holding it.
Riprap on a culvert outlet or a stream bank takes the energy out of concentrated flow.
Compaction waits for 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.
Long, cold winters bring repeated freeze and thaw that heaves gravel drives, lanes and field entrances as the ground lets go in spring. Iowa footing depth is commonly 42 inches, set by the local building official, and some northern jurisdictions ask for more.
Where a base is thin, the heave shows up first as a soft, rutted lane after melt. A coarser roadstone under a finer surface course spreads that load better than a topping alone.
Kettles and closed depressions hold water, so plan a drainage layer rather than counting on the ground to take it.
Delivery Across Dickinson County
Order online and choose your quantity by the ton or by the yard. Each product page has a calculator to help you size the load, and you pick your delivery date at checkout.
A dump truck then tips the material on site in one pile.
Delivery covers Spirit Lake, Milford, Lake Park, Arnolds Park, Okoboji and Terril. Bulk loads come by the ton or the yard, and the calculator is the place to start when a project spans more than one material.
Order Roadstone and Landscape Rock for Dickinson County
Start with the quantity. Each product page has a calculator, and you order by the ton or by the yard, then pick a delivery date at checkout.
Class A roadstone, clean rock, riprap, black dirt and mulch all deliver across Dickinson County, from Spirit Lake and Milford to Lake Park, Arnolds Park, Okoboji and Terril. Choose your material and place the order online.