Bulk Gravel and Stone Delivery in Gilliam County, OR
Oregon Rock Supply brings gravel, stone and aggregate delivery in Gilliam County, OR to Condon, Arlington, Mikkalo and the ground between them. The base material here is 3/4 minus, also called 3/4-0 or 3/4 inch minus.
It is crushed rock graded from 3/4 inch down to fines, so it compacts and locks up under a driveway, a parking pad, a shop floor or a shed base.
The ground it goes on is Columbia River basalt under wind-laid loess, deep silt on the wheat ground and shallow soil where the rock comes near the surface.
Ground Conditions Across Gilliam County
Across the Columbia River Gorge and Plateau, precipitation runs about 8 to 15 inches a year. The trouble is not volume.
Loess turns greasy when wet, sheds water fast when dry, and runs off frozen ground in winter.
That shapes what you put down. A fines-bearing material such as 3/4 minus compacts into a base that will not pump when the silt underneath is soft.
A clean, open stone such as drain rock or 3/4" Crushed Stone lets water move through instead of sitting against a footing or a wall.
Erosion follows the same pattern. Wind moves bare loess, cultivated slopes cut rills and gullies, and dry draws run hard during summer thunderstorms.
Slope protection rock belongs on stream banks, culvert outlets, pond edges and cut slopes before winter runoff arrives.
The working season is long, bounded by hard frost at one end and summer dust at the other. Water for compaction often has to be hauled on the plateau, so timing a delivery matters as much as the material itself.
Winters here are cold and dry with sustained freezing and a hard east wind through the Gorge, and ground frost goes deeper than it does west of the Cascades. Frost depth is a footing figure set by the building department, so confirm it with the county before you plan a pour.
Materials Delivered in Gilliam County
Oregon specifies base material by top size with a minus notation.
The Oregon Standard Specifications for Construction set dense-graded base aggregate in Section 02630.10 at sizes of 2 1/2 inch - 0, 2 inch - 0, 1 1/2 inch - 0, 1 inch - 0 and 3/4 inch - 0, and Section 00641.10 states that base aggregate is dense-graded unless otherwise specified.
Section 02630.11 covers open-graded aggregate, the clean, fines-free material.
Choosing the Right Material
Morrow County and Wasco County sit on the same Columbia River Gorge and Plateau ground as Gilliam County, so the base and drainage choices there work from the same basalt under loess. Wheeler County is different ground entirely.
Wheeler County belongs to the Blue Mountains and Wallowas, some of the oldest rock in Oregon. Accreted terranes with granitic intrusions sit under Columbia River basalt, with volcanic ash caps on the forested slopes and alluvial gravel in the valleys.
That changes the material choice. Where alluvial gravel already drains, a clean open stone does the work.
On Gilliam County loess, a minus rock that compacts is what holds a drive together.
Delivery Across Gilliam County
Order online and the truck tips your load on site. Quantities are ordered by the ton or by the yard, and each product page has a calculator to help you size the load.
Pick a delivery date at checkout.
Coverage runs across the county, including Condon, Arlington and Mikkalo. A dump truck tips the material in one pile where you want it dropped, so have that spot clear before the truck arrives.
Order Bulk Gravel and Stone in Gilliam County
Oregon Rock Supply delivers bulk gravel, stone, sand and topsoil across Gilliam County, including Condon, Arlington and Mikkalo. Order online by the ton or by the yard, size the load with the calculator on the product page, and pick your delivery date at checkout.
Place your order and the truck brings it to your site.