Riprap and Bulk Aggregates for Silverton, OR

Winter rain on bare silt moves fast. Gravel and aggregate delivery in Silverton, OR starts with the stone that slows it down.

Oregon Rock Supply hauls riprap, drain rock and 3/4 minus by the ton.

Across the Willamette Valley and Portland Basin, 35 to 45 inches of rain lands almost entirely between November and March. Tight silt sheds it slowly.

Stone that stays open is how you get the water moving again.

Materials for Silverton Projects

Start coarse. The biggest stone does the work water cannot be talked out of doing.

Everything finer comes after the slope, swale or bank is armored.

• RipRap armors stream banks, culvert outlets, pond edges and cut slopes against winter runoff. Oregon riprap is specified by class, from Class 50 up to Class 2000.
• Railroad Ballast is coarse angular rock for track beds, heavy hard standing and severe drainage where a large open stone is wanted.
• #4 Crushed Stone is large open stone for construction entrances, trench bottoms and heavy drainage. Oregon yards more often sell this size as 1 1/2 clean.
• Drain Rock, also called 1 1/2 clean, is washed and open so water moves through it instead of sitting. Use it in French drains, curtain drains, footing drains, drywells and downspout runs.
• 3/4" Crushed Stone is angular rock with the fines screened out. It goes in drainage trenches, behind retaining walls, and over soft wet ground that needs bridging.

Then come the minus materials. 3/4 Minus, also called 3/4-0 or dense-graded base rock, is crushed rock graded 3/4 inch down to fines so it compacts and locks up.

It is the standard Oregon base under driveways, parking pads, shop floors and shed bases.

Quarry Run, or pit run, is raw rock straight from the pit face. It builds up soft ground and raises grade before a graded base course goes on top.

Do not expect it to compact like a minus rock.

Finer still, 1/4 Minus is the fines product Oregon yards sell as quarter minus. It beds pavers and flagstone, tops a compacted base, and fine grades paths.

Round stone has its own jobs. Willamette River Rock is water-worn stone for decorative beds, borders and dry creek beds.

Large River Rock suits dry creek beds, splash pads under downspouts and heavier bank work where small stone would wash out.

For ground that will not drain or plant, Top Soil and Garden Soil cover lawns, bed prep and raised beds. Fill Dirt raises grade and backfills before a base course goes on.

Delivery to Silverton and the Surrounding Area

Silverton sits in Marion County, and delivery covers the town and the surrounding area. Coverage reaches Salem, Woodburn, Stayton, Aumsville and Hubbard too.

Order online and choose your quantity by the ton or by the yard. Each product page has a calculator to size the load.

Pick your delivery date at checkout, and a dump truck tips the material on site in one pile.

Have the drop spot clear before the truck arrives. Bulk loads need room to tip and a surface that will take the weight.

Ground and Conditions in Silverton

Timing decides most of this work. Portland treats October 1 to April 30 as the wet weather season and requires bare ground stabilized within two days.

From May 1 to September 30 you get seven days.

That is why base and paving work concentrates in the dry season. Schedule a delivery around the season you are actually building in, not the one on the calendar.

The ground under Silverton is deep slackwater silt laid down by the ice-age Missoula floods on the valley floor, with red clay and silty clay loam of the Jory series in the foothills. River gravel runs along the Willamette and its tributaries.

Silt and clay shed water slowly, and the lowlands carry a seasonal high water table. A compacted base over ground that stays soft will move.

Open stone under the base gives water somewhere to go.

Winter rain on bare silt scours banks and cuts into steep foothill slopes. Riprap sized by class is how those edges get held.

Frost heave is a minor problem here next to winter saturation and soft subgrade.

Questions About Stone and Delivery in Silverton

What stone should I use for drainage in Silverton?

Use washed, open stone so water passes through instead of sitting. Drain Rock, also called 1 1/2 clean, handles French drains, footing drains, drywells and downspout runs.

3/4" Crushed Stone is angular rock with the fines screened out, for drainage trenches and retaining wall backfill. For heavy drainage and trench bottoms, #4 Crushed Stone is the larger open option.

What should I have ready when the truck arrives?

Have the drop spot clear and reachable, with room for a dump truck to tip its load. The truck tips the material in one pile, so pick a spot that suits where the stone is going.

Order your quantity by the ton or by the yard on the product page, and pick your delivery date at checkout.

Order Aggregate Delivery in Silverton

Oregon Rock Supply delivers bulk gravel, stone, sand and soil across Silverton and Marion County, from Salem and Woodburn to Stayton, Aumsville and Hubbard. Choose your material, size the load, and pick a delivery date at checkout.

Order your riprap, drain rock or 3/4 minus online and get it on site.