Order 3/4 Minus and Crushed Stone in Wasco County, OR
Oregon Rock Supply handles gravel, stone and aggregate delivery in Wasco County, OR. Start with the lead material: 3/4 minus, the crushed rock graded from 3/4 inch down to fines that compacts and locks up.
Each product page has a calculator, so you can size the load before you order. Quantities are ordered by the ton or by the yard, and a dump truck tips the material on site.
Delivery across Wasco County
Order online and pick a delivery date at checkout. Size the load with the calculator on the product page, then choose your quantity by the ton or by the yard.
Bulk delivery covers The Dalles, Dufur, Mosier, Maupin and Tygh Valley. A dump truck tips the load in one pile where you want it dropped.
Materials delivered in Wasco County
Lead with the job. A driveway or a shop pad wants a minus rock that compacts.
A drain wants clean, open stone that water moves through.
3/4 minus is the standard Oregon base under a driveway, a parking pad or a shop floor.
Oregon specifies base material by top size with a minus notation, and the Oregon Standard Specifications for Construction set dense-graded base aggregate in Section 02630.10 at sizes from 2 1/2 inch - 0 down to 3/4 inch - 0.
Section 00641.10 states that base aggregate is dense-graded unless otherwise specified. Section 02630.11 covers open-graded aggregate, the clean material with the fines screened out.
Ground conditions across Wasco County
Across the Columbia River Gorge and Plateau, Columbia River Basalt flows sit under wind-laid loess. The wheat ground holds deep silt, and the soil goes shallow where the basalt comes near the surface.
Precipitation runs roughly 8 to 15 inches a year, so volume is not the trouble. Loess turns greasy when wet and sheds water fast when dry, which is why an under-built base fails on this ground.
Erosion follows the same pattern: wind on bare loess, rill and gully cutting on cultivated slopes, and sudden runoff in dry draws during summer thunderstorms. Riprap and clean stone armor those places.
The working season is long, bounded by hard frost at one end and summer dust at the other. Water for compaction usually has to be hauled on the plateau, so plan the timing around it.
Winters here are cold and dry, with sustained freezing and a hard east wind through the Gorge. Frost goes deeper here than west of the Cascades, so confirm the footing figure with the county building department.
Choosing the right material
Sherman County and Gilliam County share this ground region, the same basalt under wind-laid loess with deep silt and shallow soil where the rock comes near the surface. The ground is the same, so the base and drainage choices carry over.
Jefferson County spans more than one zone, reaching into Central Oregon and the High Lava Plains, and into the Cascade Range and Hood River Valley. Where the ground changes, the material choice changes with it.
On ground that holds silt, a minus rock that compacts gives you a base. Clean, open stone gives you drainage, and it will not lock up into a surface.
Order 3/4 Minus for Your Wasco County Project
For most drives, pads and shop floors in Wasco County, 3/4 minus is the material to start with. It is crushed rock graded 3/4 inch down to fines, and it compacts into a base that holds.
Size your load with the calculator on the product page, then place your order online and a truck will tip it on site.