Bulk Gravel and Stone Delivery in Canyon County, ID
Idaho Rock Supply delivers gravel, stone and aggregate delivery in Canyon County, ID, ordered online by the ton or by the yard. If you are building a drive, a pad or a shed slab, road mix is the material to start with.
This is old lake silt, sand and clay with basalt beneath, worked into irrigated silt loam on the valley floor. That ground moves when it stays wet, so base depth matters more here than surface choice.
Materials delivered in Canyon County
Base material comes in a few sizes and each one does a different job. Road mix, also called 3/4 road mix or crushed base, is crushed rock with the fines left in so it locks up under a roller.
State highway work follows the ITD Standard Specifications for Highway Construction, where Section 703.04 covers Aggregate for Untreated Base, Treated Base and Road Mix and is the source of the 3/4 inch minus gradation. Section 703.11 covers aggregate for granular subbase.
City, county and highway district work is usually written to the Idaho Standards for Public Works Construction, whose Section 802 covers crushed aggregate in Type I and Type II and Section 801 covers uncrushed aggregate. Those are how material is described in Idaho.
Clean washed rock and round rock cover the drainage and decorative side. Natural Pea Gravel and river rock are round, so they stay loose.
Chips and drain rock are angular and hold their place.
Sand and soil finish the job. Washed concrete sand beds pavers and slabs, mason sand suits brick and block work, and screened topsoil or garden soil goes over thin desert ground.
Ground conditions across Canyon County
The Treasure Valley and the western Snake River Plain give the longest working season in Idaho, from an early spring thaw into late fall. Canal water running from spring to autumn governs when work along ditches and laterals can happen.
Across the valley floor, caliche layers, clay lenses and shallow basalt perch water under yards and drives. Irrigation canals and laterals hold the summer water table high, and summer cloudbursts run straight off crusted desert soil instead of soaking in.
That perched water is why a drainage layer belongs under a base course on low ground. Where water sits, the base softens and the surface above it follows.
Runoff off the Boise Front after fire and cloudbursts, canal and ditch bank scour, furrow erosion on irrigated ground, and spring wind moving dry bare soil all shape what a yard needs. Rip rap armors the banks and outlets that take that water.
Cold nights and mild days give many shallow freeze and thaw cycles through the winter rather than one deep freeze. Frost depth is about 24 inches in Boise and the surrounding Treasure Valley cities, and the local building official sets footing depth.
Delivery across Canyon County
Order online and choose 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.
You pick a delivery date at checkout, and a dump truck tips the load in one pile on site. Coverage runs across the county, including Nampa, Caldwell, Middleton, Parma, Wilder, Greenleaf and Melba.
On a long rural approach, a compacted road mix base with a clean surfacing layer over it holds up better than loose gravel alone. Pit run works underneath as fill where grade has to come up first.
Choosing the right material
Owyhee County, Ada County and Payette County all sit on the same ground region as Canyon County. Old lake silt, sand and clay with basalt beneath, with sandy and gravelly terraces along the rivers and hard caliche under thin desert soils on the benches.
Because the ground is the same, the base and drainage choices are the same. What changes from one lot to the next is how close the water table sits and how much caliche is under the surface.
Where caliche or a clay lens perches water, a clean drainage layer under the base does more than extra depth of the same material. Where the ground drains freely, road mix compacted over pit run fill is enough.
Order road mix and aggregate for your Canyon County job
Idaho Rock Supply delivers bulk gravel, stone, sand and soil across Canyon County, including Nampa, Caldwell, Middleton, Parma, Wilder, Greenleaf and Melba. Order online by the ton or by the yard, size the load on the product page, and pick your delivery date at checkout.