How deep should a gravel driveway base be in Grant County?

The brief injects no depth figure for Grant County, so the honest answer is that depth depends on your ground and your load. What matters is that a minus rock compacts into a base and a clean rock drains. Size the quantity with the calculator on the product page and order by the ton or yard.

How much gravel do I need for my project?

Quantities are ordered by the ton or by the yard. Each product page has a calculator, and it is the right place to size the load for your own area and depth. Start there, then choose a delivery date at checkout.

Do you deliver to Grant County?

Yes. Oregon Rock Supply delivers bulk gravel, stone, sand, topsoil and aggregate across Grant County, including John Day, Canyon City, Prairie City, Mount Vernon, Dayville, Long Creek, Seneca, Monument, Bates and Kimberly. Order online and a dump truck tips the load on site.

Grant County 3/4 Minus and Gravel Delivery, OR

Oregon Rock Supply brings gravel, stone and aggregate delivery in Grant County, OR to jobs across the John Day valley and the country around it. The working window here runs from snowmelt to the first hard frosts, so timing matters as much as the material.

Most drives, pads and shop floors in Grant County start with 3/4 minus. It is crushed rock graded from 3/4 inch down to fines, so it compacts and locks up under a vehicle.

Materials Delivered in Grant County

3/4 minus is the standard Oregon base.

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

The pair that matters most is minus against clean. A minus material keeps its fines and compacts into a base.

A clean material has the fines screened out and drains instead.

Umatilla County sits on a different ground region, the Columbia River Gorge and Plateau. Columbia River Basalt flows there sit under wind-laid loess, with deep silt on the wheat ground and shallow soil where the basalt comes near the surface.

That deep silt changes the base choice. Silt ground holds water and moves under a load, so a compacted minus base and a drainage layer carry more of the job there than they do on Grant County ground.

Wheeler County and Union County share the Blue Mountains and Wallowas ground region with Grant County. The ground is the same, so the material choices are the same.

Ground Conditions Across Grant County

Across the Blue Mountains and Wallowas, snowmelt is the main event. The high ranges take 50 to 80 inches of precipitation a year and feed valleys that get far less.

Spring snowmelt scours stream banks and culverts. Runoff comes off steep forest roads, and bare slopes after wildfire shed water fast.

Riprap armors those banks, outlets and cut slopes.

The ground itself is some of the oldest rock in Oregon, with granitic intrusions under Columbia River Basalt and volcanic ash caps on the forested slopes. Valleys hold alluvial gravel.

Frozen ground stops compaction through the winter, so the season runs between snowmelt and the first hard frosts. Order before the ground freezes if the work needs to compact.

Delivery Across Grant County

You order online and choose a quantity by the ton or by the yard. Each product page carries a calculator, and sizing the load there first keeps the order simple.

A dump truck tips the load in one pile on site. Grant County deliveries cover John Day, Canyon City, Prairie City, Mount Vernon, Dayville, Long Creek, Seneca, Monument, Bates and Kimberly.

Order Your Grant County Material

Start with the quantity. Use the calculator on the product page to size your load, then order by the ton or by the yard and pick a delivery date at checkout.

Oregon Rock Supply delivers 3/4 minus, drain rock, riprap and more across Grant County.

3/4 Minus, Sand and Gravel Delivery in Grant County, OR