Bulk Material Delivery in Addy, WA

Washington Rock Supply handles gravel and aggregate delivery in Addy, WA, by the ton or by the yard. The Washington default surfacing course here is 5/8 minus, also called crushed surfacing top course, and it is what most drives and pads in this corner of Stevens County get built on.

The northeast corner is glaciated mountain country. Thin stony soil sits over granite and metamorphic rock on the ridges, and snowmelt does most of the year's work in a few spring weeks.

Materials for Addy Projects

Washed stone is the material that answers wet ground here. With the fines taken out, the stone keeps its voids, so water moves through it instead of sitting in it, which is what a French drain or a drywell needs to work.

Drain rock, also called 7/8 clean or washed rock, is the washed drainage stone for footing drains and curtain drains. Because it is washed, it keeps the open voids that a perched water table needs.

For downspout runs and under-slab drainage, 3/4" Crushed Stone is the washed counterpart to a minus product. It drains instead of compacting, which is what a pipe surround or a drain field wants.

On the compacting side of the split, 5/8 minus is the surfacing course for driveways, parking pads and shed slabs. The fines stay in, so it packs hard and sheds water rather than soaking it up.

Below that top course, 1 1/4 minus, also called crushed surfacing base course or CSBC, is the structural course. Its larger top size and fewer fines carry load and stay workable on soft spring ground.

For garden paths and side yards, 1/4 minus packs tight underfoot. Where pavers or flagstone go down, crusher dust, also called 3/8 minus or screenings, beds them and compacts rather than drains.

Delivery to Addy and the Surrounding Area

You order online and pick a quantity by the ton or by the yard. Each product page carries a calculator to help you size the load.

Checkout is where you choose your delivery date. A dump truck then tips the material on your site in one pile.

Washington Rock Supply delivers across Addy and the rest of Stevens County, including Colville, Chewelah, Kettle Falls, Loon Lake and Springdale.

Ground and Conditions in Addy

This is the coldest corner of the state, with long winters and a slow spring breakup. Frost heave and soft spring ground govern any unbound base you put down.

Frost depth is 24 inches in Okanogan County. Your county or city building department sets the figure for your site, and it can be deeper at elevation.

Spring runoff scours ditches, culverts and gravel roads during breakup. Bare ground sheds soil and rock after a wildfire season, so washed stone and rock armour hold up better than a fines-heavy material in those spots.

The working season is short. Base, drive and paver work fits between the spring breakup and the autumn freeze, and the window narrows the further north the site sits.

Order Bulk Gravel and Washed Stone in Addy

Washington Rock Supply delivers 5/8 minus, washed drain rock, sand, soil and rock to Addy and across Stevens County. Choose your material, set the quantity by the ton or the yard, and pick a delivery date at checkout.

Place your order online and a truck will tip it on site.