Order Gravel, Stone and Soil in Lamona, WA

Washington Rock Supply handles gravel and aggregate delivery in Lamona, WA, and the ground here shapes what you order. This is loess country: windblown silt over basalt, dry and loose through the summer.

That makes 5/8 minus, the local crushed surfacing top course, the sensible surface for a drive or a pad.

Size the load with the calculator on any product page, then order by the ton or by the yard.

Delivery to Lamona and the Surrounding Area

You order online, pick your quantity by the ton or by the yard, and choose a delivery date at checkout. A dump truck then tips the load on your site in one pile.

Lamona sits in Lincoln County, and delivery covers the surrounding county as well, including Davenport, Wilbur, Odessa, Sprague and Reardan. Whether the work is in town or out on a county road, the same process applies: order online, take the pile, and build from there.

Materials for Lamona Projects

Raising grade and building pads is the work this ground asks for. Where the silt sits deep and soft, a pad needs fill under it and a structural base above the fill before anything hard goes on top.

Start with Fill Dirt for raising grade and backfilling over-excavations. It builds up low spots so a granular course has something to sit on.

Above the fill, 1 1/4 Minus is the structural course, also called crushed surfacing base course or CSBC. Its larger top size and lower fines content carry load and stay workable on soft, wet ground.

Top that with 5/8 Minus, the crushed surfacing top course. The fines are left in, so it packs hard and sheds water instead of soaking it up.

For a long rural approach, Driveway Gravel is sold as a driveway blend alongside the graded surfacing courses. For a patio or walkway, Walkway Gravel is the fine end of the minus range and packs tight underfoot.

Where water needs to move instead of sitting, Drain Rock is washed with no fines, so it keeps its voids in a footing drain or infiltration trench. Under pavers, Stone Screenings bed the units and fill the joints.

Ground and Conditions in Lamona

Across the Columbia Basin, Yakima Valley and the channeled scablands, the ground is windblown loess over Columbia River basalt. Where the Ice Age floods ran, that loess was stripped off and the basalt left bare.

The floods also dumped sand and gravel bars in the coulees and along the rivers. Where that flood gravel reaches the surface, water disappears straight down instead of pooling.

Rainfall is scarce for much of the year, then arrives all at once. Silt sheds water rather than absorbing it, so a cloudburst or a rapid thaw cuts rills and gullies in bare ground, and wind moves dry silt where nothing holds it.

An under-built base shows up fast in that cycle. Fill placed over soft silt, with no structural course above it, moves and settles once it takes water.

Timing matters too. The wet weather season for erosion control runs October 1 through June 30, and once snow falls or the ground freezes, placing and compacting base material stops being practical.

Winters here are cold and dry, and the ground freezes properly, unlike west of the Cascades. Frost heave in an unbound base is something to design for.

Frost depth figures are set by the county or city building department and run deeper with elevation.

Order 5/8 Minus and Base Material in Lamona

For a pad, a drive or a shop slab in Lamona, start with fill and 1 1/4 Minus below and finish with 5/8 minus on top. Order online by the ton or by the yard and pick your delivery date at checkout.