Bulk Aggregate Delivery Across Clinton County, IA
Iowa Rock Supply handles gravel, stone and aggregate delivery in Clinton County, IA. Class A roadstone is the base most drives, farm lanes and parking pads in the county start from.
It is crushed limestone with the fines left in, so it binds and compacts. County engineers write it as Class A roadstone.
Delivery across Clinton County
You order online, choose a quantity by the ton or by the yard, and pick a delivery date at checkout. Each product page has a calculator if you want to size the load before you order.
A dump truck arrives and tips the load in one pile on site. That is the whole delivery.
Coverage runs across the county, including Clinton, DeWitt, Camanche, Wheatland, Grand Mound, Delmar, Charlotte, Calamus, Lost Nation, Goose Lake, Bryant and Teeds Grove.
Have the delivery spot clear before the truck arrives. Low ground near the river can stay soft well into spring, so a firm, dry standing area keeps the truck from working too hard.
Materials delivered in Clinton County
Lead with the job, not the material. For a new drive or a lane that carries heavy equipment, start with 1 inch roadstone and top it with a finer course.
Class A roadstone, also called roadstone or 3/4 inch roadstone, is the standard Iowa base course. It goes under driveways, parking pads and shed bases.
For drainage, clean rock is washed and open graded so water moves straight through. It backfills subdrains, drainage tile and pipe bedding, and it works behind retaining walls.
Rip rap, also called revetment stone, armors stream banks, culvert outlets and pond edges.
Ground conditions across Clinton County
Across the Mississippi River corridor, the ground is sand, gravel, silt and clay on the river terraces and floodplain. Sandy blow ground sits on the older terraces, with till and loess uplands rising behind the bluff line.
That mix decides how a base performs. Sandy terraces drain fast and need a base that holds together.
Floodplain ground barely drains at all, so a base built there needs somewhere for water to go.
Spring snowmelt from the upper basin raises the river and backs water up the tributary mouths. Low ground can flood long after local rain has stopped, so low lying work waits for the spring crest to pass before base goes in.
Upland work follows the ordinary thaw to fall freeze pattern. Cold winters bring repeated freeze-thaw, which heaves gravel drives and river road surfaces each spring.
Frost depth is commonly 42 inches, and the local building official sets footing depth.
Erosion is a real driver along the corridor. River bank cutting and flood scour work on the banks, and gully erosion works the loess covered bluffs above the valley.
Rip rap is the material for that work.
Choosing the right material
Clinton County sits on the Mississippi River corridor, and Jackson County spans that same corridor along with the Paleozoic Plateau, the driftless northeast. Both share river terrace and floodplain ground.
Jones County and Cedar County sit on the Iowan Surface, which is a different ground entirely. Loamy glacial till there was planed down by cold-climate erosion, with a thin, patchy loess cover.
That ground carries a residual stone line or pebble band near the surface and large granite and quartzite erratics scattered through the fields. Limestone bedrock is shallow along the eastern edge.
On the Iowan Surface, a roadstone base still compacts into a firm drive, but shallow limestone and scattered erratics change what you hit when you work the ground. Drainage there follows the till rather than river sand.
On the river corridor, drainage matters more than ever. Sandy terraces shed water fast, and floodplain ground holds it, so clean rock and open graded stone do the work that a fines-bearing base cannot.
Order Class A roadstone for your Clinton County job
Class A roadstone is the base that carries drives, lanes and pads across Clinton County. Iowa Rock Supply delivers bulk gravel, stone, sand, topsoil and aggregates to the job site.
Order online when you are ready. Choose your material, size the load, and pick a delivery date.