Order 5/8 Minus and Crushed Stone in Skagit County, WA

Washington Rock Supply handles gravel, stone and aggregate delivery in Skagit County, WA. Start with 5/8 minus, the crushed surfacing top course that packs hard under a driveway, a parking pad or a shop slab.

Winter rain perches on the dense till here and sits close to the surface. Washed drain rock takes that water sideways to daylight, and the same ground decides how the rest of the order goes.

Ground Conditions Across Skagit County

Skagit County spans two ground regions. The Puget Sound lowland takes in Mount Vernon, Anacortes, Sedro-Woolley, Burlington and La Conner.

In the lowland, glacial ground laid down by the Vashon ice sheet caps the site. Dense till sits over advance outwash sand, and silt and clay sit below that.

Rain soaks the loose upper soil, reaches the till and stops.

That perched water is why footing drains, French drains and washed drain rock do so much of the work on lowland sites. Water has to move sideways to daylight, not down.

The Cascade side runs steeper and wetter. Thin, stony soil covers volcanic and granitic rock on the slopes, with glacial and river gravel on the valley floors.

Timing follows the same split. Lowland work runs through a wet season from October to April, when exposed soil has to be stabilized within two days.

Frost behaves differently too. The lowland ground seldom freezes deep, so saturation, not frost, is what softens a base.

Materials Delivered in Skagit County

Each product page has a calculator, and quantities are ordered by the ton or by the yard. Sizes below run from coarsest to finest, with the local name first.

5/8 minus carries the most weight in a typical order. It is crushed rock with the fines left in.

Above it, 1 1/4 minus is the same family at a coarser grading, base course, or CSBC, with a 1 1/4 inch top size and fewer fines. It goes below a 5/8 minus course to carry load.

Washed sizes come next. RipRap and Large River Rock armour shorelines, bank toes and culvert outfalls, while Railroad Ballast goes under rail spurs and heavy equipment pads.

For an order sheet, inch size is what a Washington yard is asked for, so 3/4 clean reads faster than a numbered grading.

Choosing the Right Material

Skagit County shares its ground with Snohomish County and Whatcom County. All three span the Puget Sound lowland and the Cascade Range and east-slope valleys, so the same till, outwash and perched water turn up on all three sides of the line.

That means the base and drainage choice does not change at the county line. A lowland site in any of the three wants a compacting minus course over a washed drainage layer where water perches.

Island County sits on one ground region: the Puget Sound lowland, with the same Vashon till over advance outwash sand and the same silt and clay below. One difference stands out.

If a site sits on till with water perching above it, drainage comes first and the base follows. If a site sits on outwash sand or valley gravel, water already moves and the base course does more of the work.

• Firm walking surface: 1/4 minus packs down tight underfoot for garden paths and side yards.
• Paver joints and small drain runs: 3/8 clean is washed and fines-free.
• Play areas, dog runs and pipe bedding: Natural Pea Gravel is rounded and washed.
• Dry creek beds and splash pads: river rock is round stone, not crushed.

Match the material to what the ground does with water, and the surface holds up through the wet months.

Delivery Across Skagit County

Washington Rock Supply delivers bulk aggregate across Skagit County. Coverage includes Mount Vernon, Anacortes, Sedro-Woolley, Burlington, La Conner, Concrete, Bow, Marblemount and Rockport.

Order online. Choose a quantity by the ton or by the yard, use the calculator on the product page to size the load, and pick a delivery date at checkout.

A dump truck arrives and tips the load on site in one pile. Plan for the pile where the truck can reach it, and build the grade from there.

Questions About Ordering Stone in Skagit County

What is the difference between crushed stone and Natural Pea Gravel?

Crushed stone is angular rock broken from larger material, and the minus sizes keep the crusher fines, so they compact and hold. Natural Pea Gravel is rounded and washed, so it stays loose and will not lock together.

Should I order material by the ton or by the yard?

Both work, and the choice is mostly about how the material is measured in a given size. Each product page has a calculator that sizes a load from your own numbers, and you pick a quantity by the ton or by the yard when you order online.

Pick one unit and stay with it for the whole order.

Which stone is best for drainage in Skagit County?

Washed, fines-free stone is what drains. Drain rock, also called 7/8 clean, is the workhorse for footing drains, French drains and infiltration trenches where perched water sits on till.

For smaller runs and under-slab drainage, 3/8 clean and 3/4 clean do the same job at a finer size.

Order Aggregate Delivery in Skagit County

Washington Rock Supply delivers gravel, stone, sand and soil across Skagit County, from the lowland towns to the Cascade valleys. Order 5/8 minus for a packed surface, washed rock for drainage, or sand and soil for the finish work.

Choose your quantity by the ton or by the yard, pick a delivery date at checkout, and place the order online.