Bulk Gravel and Stone Delivery in Washington County, ID
Idaho Rock Supply sells gravel, stone and aggregate delivery in Washington County, ID. The ground here is old lake silt, sand and clay over basalt, with hard caliche layers under thin desert soil on the benches.
A base that is under-built on ground like that will not hold up.
Road mix is the base material Idaho yards stock for driveways, parking pads, shop floors and shed slabs. It is crushed base with the fines left in, so it locks up under a roller.
Order it by the ton or the yard and a dump truck tips it on site.
Ground Conditions Across Washington County
Across the Treasure Valley and the western Snake River Plain, the soil is old lake silt, sand and clay with basalt beneath. Irrigated silt loam covers the valley floor, and sandy gravel terraces sit along the rivers.
Caliche, clay lenses and shallow basalt perch water under yards and drives. Water that gets through the sand stops at the caliche and sits there.
Irrigation canals and laterals hold the summer water table high across the valley floor. Summer cloudbursts also run straight off crusted desert soil instead of soaking in.
Both push water at the base of a drive or a pad.
Runoff off the Boise Front after fire and cloudbursts, canal and ditch bank scour, and furrow erosion on irrigated ground all move soil. Spring wind moves dry bare soil too.
This zone has 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.
Materials Delivered in Washington County
Start with the job. A driveway, a patio and a drain each call for a different material, and the local name is the one to order by.
Road mix and how it is specified
Road mix is also called 3/4 road mix, road base or crushed base. It is the same material as 3/4 inch minus, just asked for by size instead of by name.
A contractor ordering 3/4 minus and a homeowner ordering road mix are asking for the same load.
Idaho writes base material up two ways. 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 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.
For a drive or a pad, road mix goes down as the base and a surfacing material goes over it. Driveway Gravel surfaces an existing drive or tops a compacted road mix base on a long rural approach.
Walkway Gravel gives garden paths a finer, walkable surface than a drive needs.
For a drain, RipRap armors creek banks, culvert outlets, canal banks, pond edges and cut slopes against snowmelt and cloudburst runoff. Large River Rock handles dry creek beds, drainage swales and borders, usually in the 2 inch to 10 inch range.
Sand and soil round out a job. Washed Sand beds pavers and slabs and backfills concrete work.
Mason Sand suits brick and block work, paver joints and play sand. Garden Soil fills raised beds where the native ground is too thin, too stony or too alkaline to plant into.
Fill Dirt backfills and raises grade before a base course goes on top.
Choosing the Right Material
Payette County shares the ground region with Washington County. Old lake silt, sand and clay over basalt, caliche under thin desert soil, and gravel terraces along the rivers.
Adams County is different ground. It sits in the Central Idaho mountains and high valleys, where thin, coarse soils lie over the granite of the Idaho Batholith and weather down to sandy Stone Screenings.
That difference matters at the base. Coarse granitic soil drains freely, so a base there sheds water on its own.
Delivery Across Washington County
Order online and pick a quantity by the ton or by the yard. Each product page has a calculator if you want to size the load before checkout.
Delivery covers Washington County, including Weiser, Cambridge and Midvale. Rural approaches, pads and building sites all take a bulk delivery the same way.
Order Road Mix and Aggregate for Washington County
Road mix is the base material this ground calls for, and it is the one to start with on a drive, a pad or a shop floor. Idaho Rock Supply delivers bulk gravel, stone, sand and soil across Washington County.
Order online by the ton or the yard and a truck brings it to the site.