What is the difference between crushed stone and Natural Pea Gravel?

Crushed stone is angular and mechanically broken, so the pieces lock and a fines-bearing grade compacts into a base. Natural Pea Gravel is rounded and washed, so it stays loose and water runs through it. In Iowa, Natural Pea Gravel is the 3/8 inch rounded material used for walkways, play areas and small drainage runs.

Should I order material by the ton or by the yard?

Both work, and quantities are ordered either way. Each product page has a calculator that helps you size the load before you order. Have your dimensions ready and let the calculator handle the rest.

Which stone is best for drainage in Palo Alto County?

Clean rock is the first choice for subdrains, pipe bedding and trench backfill because it is washed and open graded. 3/4" Crushed Stone and 3/8" Crushed Stone both drain freely at smaller sizes. Where runoff concentrates, riprap armors the bank or outlet.

Gravel, Soil and Stone for Palo Alto County, IA

Iowa Rock Supply handles gravel, stone and aggregate delivery in Palo Alto County, IA. Class A roadstone is the base course most drives and farm lanes here are built on.

It is crushed limestone with the fines left in, so it binds and compacts.

The ground across the Des Moines Lobe is thick glacial till. Water sits where the tile does not carry it away, and that shapes what goes under a drive or a pad.

Delivery across Palo Alto County

You order online and a dump truck tips the load on site. Quantities are ordered by the ton or by the yard, and each product page has a calculator to help you size the load.

You pick your delivery date at checkout. Coverage runs across the county, including Emmetsburg, Graettinger, West Bend, Ruthven, Mallard, Ayrshire, Cylinder and Curlew.

Material arrives in one pile where the truck can reach. Have the spot clear before the truck arrives.

Materials delivered in Palo Alto County

It defines Class A crushed stone and Class B crushed stone to Gradation No.

11, and Class C gravel to Gradation No. 10.

County engineers and city entrance standards call the same material roadstone.

Class A roadstone is the standard base. It is what you want under a drive, a parking pad or a farm lane that has to hold up.

1 inch roadstone is the coarser grade for a new drive or a lane that carries heavy equipment.

Above the base, Driveway Gravel tops an existing drive that has thinned out. River Rock and Large River Rock cover decorative beds, borders and dry creek beds.

Shredded Mulch holds moisture in beds and windbreak plantings.

Ground conditions across Palo Alto County

This is pothole country. The drainage network is young and inefficient, kettles and closed depressions hold water, and most ground only drains at all because it is tiled.

Snowmelt and spring rain sit on the surface where the ground below is still frozen.

That drives two choices: a clean, open graded stone where water needs to move, and a fines-bearing roadstone where a surface has to bind and compact.

Erosion here is less about slope than about concentrated flow. Ditch and tile outlet scour, bank cutting on the larger rivers, and washouts on the moraine ridges are the patterns to plan around.

Riprap armors the places where runoff concentrates.

Compaction waits for the frost to come out and for the 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.

Winters are long and the frozen season is deep. Repeated freeze and thaw heaves gravel drives, lanes and field entrances as the ground lets go in spring.

Any footing depth is set by the local building official.

Choosing the right material

Palo Alto County sits on the Des Moines Lobe, the youngest glacial ground in Iowa. That is thick, compact pebbly loam till of the Dows Formation, 45 to 60 feet deep, with sand and gravel along old meltwater channels.

Clay County and Kossuth County share that same ground, so the base and drainage choices run the same way there.

Buena Vista County spans more than one ground region. Part of it sits on Des Moines Lobe till and part on the Northwest Iowa Plains, so the ground changes across that county in a way it does not here.

For a drive or pad, start with Class A roadstone. For a soft spot or a heavy lane, 1 inch roadstone goes down first.

Where water has to move, clean rock or 3/4" Crushed Stone does the work, and riprap handles concentrated flow.

Order gravel and stone in Palo Alto County

Iowa Rock Supply delivers bulk gravel, stone, sand, topsoil and mulch across Palo Alto County, from Emmetsburg and Graettinger to West Bend, Ruthven, Mallard, Ayrshire, Cylinder and Curlew. Pick your material, size the load by the ton or the yard, and choose a delivery date at checkout.

Palo Alto County, IA Gravel and Landscape Rock Delivery