Large River Rock and Bulk Aggregates for Spencer, IA

Iowa Rock Supply brings gravel and aggregate delivery in Spencer, IA to driveways, farm lanes and building sites. Start with Class A roadstone when you need a base that binds and compacts.

This is pothole country. Kettles and closed depressions hold water, and most ground here only drains because it is tiled, so coarse stone earns its place on slopes, swales and banks.

Materials for Spencer Projects

Water is the thing to plan around in Clay County. Snowmelt and spring rain sit on ground that is still frozen below, and runoff concentrates where the land rolls.

Coarse, open graded stone moves that water instead of holding it.

Start at the coarse end. Riprap, sold locally as revetment stone, armors stream banks, culvert outlets, pond edges and slopes against spring runoff.

Next down, #4 Crushed Stone handles heavy drainage and trench bottoms. Iowa quarries usually sell this size as clean rock by the inch.

Clean Rock is washed and open graded, so water moves straight through. Use it for subdrains, drainage tile backfill, pipe bedding and behind retaining walls.

#57 Stone and #67 Stone cover drainage runs, subdrain backfill and concrete aggregate at slightly different sizes. Iowa concrete stone gradations are written D57 and D67.

Move to the finer end for surfaces and bedding. Class A Roadstone is the standard Iowa base course: crushed limestone with the fines left in, so it binds and compacts under driveways, parking pads, shed bases and farm lanes.

Limestone Screenings bed pavers and flagstone, fill joints and top dress a compacted roadstone base. 3/8" Crushed Stone, sold as washed chips, covers seal coat aggregate and fine drainage.

Delivery to Spencer and the Surrounding Area

Iowa Rock Supply delivers bulk material across Spencer and Clay County, including Everly, Royal, Peterson, Dickens and Webb. Order online and pick a delivery date at checkout.

Quantities are ordered by the ton or by the yard. Each product page has a calculator if you want to size a load before you order.

A dump truck tips your material in one pile at the site. Have the spot clear and reachable before the truck arrives.

Ground and Conditions in Spencer

Plan the working season first. On the Des Moines Lobe, 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.

That window shortens in a wet spring. Order when the ground is ready, not before.

The ground here is thick, compact pebbly loam till, 45 to 60 feet deep, with sand and gravel along old meltwater channels and stony ground on the moraine ridges. Water sits where the drainage network is young and inefficient.

Slope erosion is lighter than in other parts of Iowa, but ditch and tile outlet scour, bank cutting and washouts where runoff concentrates still do damage. Coarse stone at those points is the practical answer.

Winters run long and cold, with repeated freeze and thaw that heaves gravel drives, lanes and field entrances as the ground lets go in spring. Frost depth is commonly 42 inches, and the local building official sets footing depth.

Questions About Stone and Delivery in Spencer

What stone should I use for drainage in Spencer?

Match the stone to the water. Clean Rock, #57 Stone and #67 Stone are washed and open graded, so water passes through for subdrains, pipe bedding and trench backfill.

Riprap and #4 Crushed Stone suit bank protection and heavier flow. Avoid fines-bearing material where you want water to move.

What should I have ready when the truck arrives?

Have the drop spot clear, reachable and on firm ground. The truck tips the load in one pile, so leave room around it.

Order your quantity by the ton or the yard, then choose a delivery date at checkout.

Order Bulk Aggregate for Spencer

Iowa Rock Supply delivers gravel, crushed limestone, sand and topsoil across Spencer and Clay County, including Everly, Royal, Peterson, Dickens and Webb. Choose your material, set the quantity by the ton or yard, and pick a delivery date at checkout.

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