Crushed Stone, Sand and Gravel in Uniontown, WA

Washington Rock Supply handles gravel and aggregate delivery in Uniontown, WA, and the material that starts most drives here is 5/8 minus. It is crushed rock with the fines left in, so it packs hard and sheds water instead of soaking it up.

For building a drive, setting a shed slab or running drainage, the same question comes first: does the rock need to hold together or drain freely?

Materials for Uniontown Projects

The base and driveway surfacing side of an order is where a Uniontown job gets decided. Minus products carry fines and compact under a vehicle.

Clean products have the fines washed out and pass water instead.

5/8 Minus is the Washington default surfacing course, also called crushed surfacing top course or CSTC. It goes on driveways, parking pads and shed or shop slabs, and it packs hard because the fines stay in the blend.

Under that top course sits 1 1/4 Minus, the crushed surfacing base course, or CSBC. Its larger top size and lower fines content carry load and stay workable on soft, wet ground.

For long rural drives and equipment parking, Driveway Gravel is sold as a blended surfacing material. Where a drive only needs a firm walking surface, Walkway Gravel packs down tight underfoot.

Water needs a path out. Drain Rock, also called 7/8 clean or washed rock, has no fines, so it keeps its voids in footing drains, French drains and infiltration trenches.

3/4" Crushed Stone handles trench backfill, pipe surround and under-slab drainage.

Sand and soil round out a site. Washed Sand goes into concrete mixes, paver setting beds and pipe bedding.

Mason Sand is the mortar and stucco sand, and it sweeps into paver joints. Top Soil covers lawn repair and new turf, while Fill Dirt raises grade and backfills over-excavations before a granular course goes down.

Ground and Conditions in Uniontown

The Palouse and the Blue Mountain foothills are built on loess, windblown silt piled into rolling hills. It is fine, deep and easily worked, and it moves easily too.

The real driver is water that cannot get in. When the top inch of loess thaws over frozen soil below, rain and snowmelt run across the surface instead of soaking in.

That makes every slope a drainage path. Anything built on a slope here needs runoff routed before it starts cutting, which is why a clean drainage stone belongs in the plan alongside the base course.

Erosion follows the same pattern. Sheet and rill erosion of loess on long slopes is driven by rain falling on frozen ground, and the thaw is the worst window rather than high summer.

Eastern Washington's wet weather season runs October 1 through June 30, and the working season closes when the ground freezes. Frost depth is set by the county or city building department, so confirm the local number before you plan footings.

Delivery to Uniontown and the Surrounding Area

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 need help sizing the load.

A dump truck tips the material in one pile on site. Have the drop area clear and reachable, with room for the truck to pull in and out.

Uniontown sits in Whitman County, and delivery covers the surrounding area, including Pullman, Colfax, Palouse, Tekoa and St. John.

Order Base, Stone, Sand and Soil for Your Uniontown Project

Washington Rock Supply delivers 5/8 minus, base course, drain rock, sand, topsoil and fill for driveways, parking pads, slab bases and drainage work around Uniontown. Order online, size your load, and a truck brings it to your site.