Fill Dirt Delivery for Steilacoom, WA

Washington Rock Supply handles gravel and aggregate delivery in Steilacoom, WA, with bulk loads tipped at your site. The state primary base material here is 5/8 minus, also called crushed surfacing top course.

It is crushed rock with the fines left in, so it packs hard and sheds water instead of soaking it up.

That matters on ground where the water table sits close to the surface all winter. Steilacoom sits in Pierce County, on the Puget Sound lowland.

Delivery to Steilacoom and the Surrounding Area

You order online and choose a quantity by the ton or by the yard. Each product page has a calculator if you want to size the load before checkout.

Pick a delivery date at checkout and a dump truck tips the material on site.

Delivery covers Steilacoom and the rest of Pierce County, including Tacoma, Lakewood, University Place, Puyallup and Graham. The truck tips the load in one pile where it can reach.

Have the drop area clear and firm enough to carry a loaded truck.

Materials for Steilacoom Projects

Fill and sub-base work drives the material choice on most sites here, because raising grade and building up a pad comes before any surface course goes down. Start with what the ground has to do.

For raising grade, backfilling over an excavation or building up a low spot, order Fill Dirt. It is common borrow, an unscreened fill that goes down before a granular course.

It is not structural fill and it does not take the place of a base.

Above the fill, the structural course is 1 1/4 Minus, also called crushed surfacing base course. It has a larger top size and fewer fines than 5/8 minus, so it carries load and stays workable on soft wet ground.

The surfacing course on top is 5/8 Minus. Use it for driveways, parking pads and shed or shop slabs.

It packs hard and sheds water, which is what you want on a drive that has to hold up through a wet winter.

Where water has to move instead of sit, use Drain Rock, also called 7/8 clean. It is washed with no fines, so it keeps its voids.

Footing drains, French drains and infiltration trenches all rely on that open structure.

For paths and side yards, Walkway Gravel, or 1/4 minus, packs down tight underfoot. For paver bedding and joint filling, Stone Screenings, also called crusher dust, compacts rather than drains.

Ground and Conditions in Steilacoom

Across the Puget Sound lowland, the ground is glacial material left by the Vashon ice sheet. A dense till cap sits over advance outwash sand, with silt and clay below that.

The lower part of the till is hard enough that crews call it hardpan.

Rain soaks the loose upper soil, reaches the till and stops. The water table then sits close to the surface all winter instead of draining away.

That is perched water, and it is why a base that was firm in August can rut in February.

Anything built on till needs the water taken sideways to daylight. That is the work footing drains and washed drain rock do here, and it is why a fines-free stone belongs in a drain while a minus product belongs in a base.

The wet season runs October through April. In that window, exposed soil on a western Washington site must be stabilized within two days, against seven days in summer.

Base, paving and paver work is scheduled for the dry months, and winter work needs the grade kept covered.

Winter rain also perches where outwash sand meets the clay below it. That is what puts the coastal and valley bluffs of this area on the landslide maps, and it undercuts cut slopes and fill on a smaller scale.

Order 5/8 Minus and Fill Dirt in Steilacoom

For grade work, pads and drives in Steilacoom, start with fill and sub-base and finish with 5/8 minus on top. Washington Rock Supply delivers bulk loads across Pierce County.

Order online, size the load on the product page, and choose your delivery date at checkout.