Railroad Ballast, Stone and Soil Delivery in Snoqualmie, WA

Washington Rock Supply handles gravel and aggregate delivery in Snoqualmie, WA. Start with 5/8 minus, the crushed surfacing top course this state builds drives and pads on.

It packs hard because the fines stay in.

Snoqualmie sits in King County, where thin, stony ground covers the slopes. That makes the coarse end of the size range worth knowing well.

Materials for Snoqualmie Projects

Slope, swale and bank protection is work for coarse stone. Water arrives fast on steep ground, and a small stone will not stay where it is placed.

Coarse Stone for Slope and Bank Work

RipRap is the heavy end of the range. It armors shorelines, streambanks, culvert outfalls and cut slopes.

Large River Rock, sold as 2 to 8 inch round, holds swales, ditch lines, bank toes and culvert outfalls. Rounded stone sheds moving water instead of locking together, so it belongs where a smaller stone would be carried off.

Railroad Ballast is track rock for rail spurs, yard track and heavy equipment pads. Say the name in full.

Drainage and Base Stone

Drain Rock, also called 7/8 clean, is washed with no fines, so it keeps its voids. It goes in footing drains, French drains and infiltration trenches where water sits on till.

1 1/4 Minus is the structural course under a drive, parking area or slab. Its larger top size and fewer fines carry load and stay workable on soft, wet ground.

5/8 Minus is the top course over that base. The fines are left in, so it compacts and sheds water rather than soaking it up.

Finer Stone, Sand and Soil

Walkway Gravel, or 1/4 minus, is the fine end of the minus range. It packs tight underfoot on garden paths and side yards.

Stone Screenings, called crusher dust or 3/8 minus, beds pavers and flagstone and fills joints. It compacts rather than drains.

Washed Sand goes into concrete mixes, paver setting beds and pipe bedding. Washing takes the silt out, which matters through the wet season.

Top Soil is screened and blended for lawn repair, new turf and grading out settlement.

Delivery to Snoqualmie and the Surrounding Area

Order online and pick your delivery date at checkout. Quantities are ordered by the ton or by the yard, and each product page has a calculator to help size the load.

A dump truck tips the material in one pile on your site. Have the spot clear before it arrives.

Washington Rock Supply covers Snoqualmie and the rest of King County, including Seattle, Bellevue, Kent, Renton and Federal Way.

Ground and Conditions in Snoqualmie

Across the Cascade Range and the east-slope valleys, the working window runs roughly from late spring to early autumn. Snow closes the high ground, and timing a delivery around that window matters more than anything else on the schedule.

Thin, stony soil sits over rock on the slopes, with glacial and river gravel on the valley floors. Water that cannot soak in has to be carried away, which is why a drainage layer earns its place.

Runoff off steep ground scours road shoulders, ditches and culvert outfalls. Coarse stone at those points takes the energy out of the flow.

Order Gravel, Stone and Soil in Snoqualmie

Washington Rock Supply delivers bulk gravel, stone, sand and soil across Snoqualmie and King County. Order online, size the load by the ton or yard, and pick your delivery date at checkout.

Place your order and the truck brings it to your site.