Jefferson County, OR Gravel and Landscape Rock Delivery
Oregon Rock Supply delivers gravel, stone and aggregate delivery in Jefferson County, OR, and the working season shapes how you time a load. In the Central Oregon and High Lava Plains part of the county, the dry stretch runs from late spring into autumn and summer compaction normally needs added water.
Up at Camp Sherman the season is short, and snow and frozen ground stop base and paving work from late autumn until the ground dries out in late spring.
3/4 minus is the standard base under driveways, parking pads, shop floors and shed bases here. It is crushed rock graded 3/4 inch down to fines so it compacts and locks up.
Materials delivered in Jefferson County
Base material comes first because it carries the load.
Oregon specifies base aggregate by top size with a minus notation, and the Oregon Standard Specifications for Construction set dense-graded base 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.
Section 00641.10 states that base aggregate is dense-graded unless otherwise specified, and Section 02630.11 covers open-graded aggregate, which is the clean, fines-free material.
3/4 Minus, also called 3/4-0 or 3/4 inch minus, is the standard Oregon base under driveways, parking pads, shop floors and shed bases.
Quarry Run, also called pit run, is raw rock straight from the pit or quarry face, used to build up soft ground and raise grade before a graded base course goes on top.
Washed stone handles water. Drain Rock, also called 1 1/2 clean, is washed and open so water moves through it, for French drains, curtain drains, footing drains, drywells and downspout runs.
3/4" Crushed Stone, also called 3/4 clean or 3/4 open, is angular rock with the fines screened out, for drainage trenches, retaining wall backfill, construction entrances and bridging soft wet ground.
RipRap arms stream banks, culvert outlets, pond edges and cut slopes against winter runoff, and Oregon riprap is specified by class from Class 50 up to Class 2000. 1/4 Minus, also called quarter minus or crushed fines, beds pavers and flagstone and tops a compacted base.
Sands and soils finish the job. Washed Sand is washed so it drains instead of holding water, for pipe bedding, leveling under slabs and flatwork, concrete mix and arena footing.
Top Soil is screened for lawns, bed prep and finish grading, and Fill Dirt raises grade and backfills before a base course goes on.
For decorative work, 3/8" Natural Pea Gravel suits paths, play areas, dog runs and drainage where a smooth rounded stone is wanted. Large River Rock goes into dry creek beds, splash pads under downspouts and heavier bank work where small stone would wash out.
Delivery across Jefferson County
You order online, choose a quantity by the ton or by the yard, and pick a delivery date at checkout. Each product page has a calculator if you need to size the load.
A dump truck then tips the material on site in one pile.
Bulk delivery reaches Madras, Culver, Camp Sherman, Ashwood and the surrounding ground. Have the drop area clear and reachable by a truck before the load arrives.
Ground conditions across Jefferson County
Jefferson County spans more than one ground region, so conditions change with where you build. On the Central Oregon and High Lava Plains side, the ground is young basalt with pumice, cinder and ash soils and thin soil over hard rock along the rims.
Water behaves differently in each. The drier side sees 8 to 12 inches of precipitation a year over pumice and fractured basalt that drain very fast, so holding moisture for compaction is the usual problem rather than shedding water.
Erosion follows the same split. Wind moves bare pumice and ash, and short intense summer thunderstorms cut channels in dry draws.
Frost matters for anything set in the ground. In the Central Oregon and High Lava Plains zone, cold clear winters at roughly 3,000 to 4,000 feet bring wide day-to-night swings and repeated freeze-thaw, with frost depth of 12 to 18 inches below 4,000 feet and 24 inches at 4,000 feet and above.
In the Cascade Range and Hood River Valley zone, frost depth runs 18 inches from 2,500 to 4,000 feet and 24 inches at 4,000 feet and above, with 12 inches only in the lowest valley towns.
Choosing the right material
Neighbouring ground tells you a lot about material choice. Deschutes County sits in Central Oregon over the same young basalt with pumice, cinder and ash soils and thin soil over hard rock along the rims, so the base and drainage picture matches Jefferson County's dry side.
The ground is the same, and the same materials answer it.
Wasco County is different. There, Columbia River Basalt flows sit under wind-laid loess, with deep silt on the wheat ground and shallow soil where the basalt comes near the surface.
Linn County spans the Willamette Valley and Portland Basin along with the Cascade Range and Hood River Valley, so its low ground differs from Jefferson County's volcanic soils. Where ground holds water, washed stone and clean rock carry it away; where ground drains fast, a minus base that compacts is the place to start.
Order gravel, stone and soil for your Jefferson County project
Oregon Rock Supply covers driveways, parking pads, shop floors, shed bases, drainage runs, retaining wall backfill, stream bank armoring, garden paths and decorative beds across Jefferson County. Order 3/4 minus, drain rock, riprap, sand, topsoil or river rock online, size the load by the ton or the yard, and pick your delivery date at checkout.