Order Crushed Base and Crushed Stone in Natrona County, WY
Wyoming Rock Supply handles gravel, stone and aggregate delivery in Natrona County, WY. Start with the calculator on any product page to size the load, then pick the material.
Crushed base is the standard Wyoming base course, and it is what most drives and pads here start from.
Ground across the county runs from river terrace gravel along the North Platte to bentonitic clay and gumbo that turns greasy when it is wet and shrinks back hard when it dries.
Ground Conditions Across Natrona County
Natrona County spans more than one ground region. Around Casper, Evansville, Alcova and Arminto you get shale-derived clay with bentonite in it, sandy and gravelly river terraces along the North Platte, and granite and limestone slopes on the Casper Mountain and Laramie Range front.
Toward Midwest and the Powder River Basin side, the ground is bentonitic gumbo clay cut by badlands and draws, with red clinker ridges called scoria where coal seams burned out.
That clay is the reason base depth matters. Bentonitic subgrade sheds water rather than taking it in, so a drive needs a granular layer that will drain and compact instead of pumping.
Snowmelt down the North Platte and off Casper Mountain, sudden thunderstorm runoff on bare clay, and snowmelt sitting on frozen subgrade all work against a shallow base.
The working season runs from spring breakup into autumn. Frozen ground and wind-driven cold stop compaction through the winter, and wet gumbo has to dry before it will compact at all.
Frost is deep here, and repeated chinook thaws freeze and release the ground several times a season. Unbound surfacing breaks up at spring thaw.
The frost figure published in Casper is 3 feet to the top of the footing, and Douglas publishes 42 inches; the local building department sets footing depth.
Materials Delivered in Natrona County
Crushed base, also called 3/4 minus, is the standard Wyoming base material. Base in Wyoming is specified as crushed base.
Section 803.4.3 is Crushed Base and Table 803.4.4-1 sets the gradings, lettered J, GR, L, K and W rather than numbered. Grading W is the common one-inch-top-size base and Grading GR is the 3/4 inch gradation.
City and county work is usually written against Section 02190 of the Wyoming Public Works Standard Specifications, which uses the same grading letters and states that base shall be crushed base unless otherwise specified.
Finer sizes and the rest of the yard round out a load. Stone Screenings bed pavers and flagstone and pack into pathway surfaces that hold together in wind.
3/8" Natural Pea Gravel suits walkways, play areas and dog runs where rounded stone is wanted. Wind River Rock and Large River Rock cover decorative beds, borders and dry creek beds.
For sand and soil, Mason Sand handles brick and block work and paver joints, and Washed Sand levels and beds under flatwork. Garden Soil fills raised beds where native clay will not do, and Fill Dirt raises grade before a base course goes down.
Choosing the Right Material
Johnson County sits in the Powder River Basin, and its ground reads like the basin side of Natrona County: the same bentonitic gumbo clay, the same badlands and draws, the same red scoria ridges where coal seams burned out.
Where the ground is the same, the material answer is the same. Crushed base over a drained granular layer, with washed rock where water needs somewhere to go.
Fremont County is different. Its Wind River Basin ground runs to shale-derived clay and badlands too, but it also carries alkaline flats and coarse granite outwash and cobble washed off the Wind River Range.
Carbon County is higher and colder, with alkaline and saline lake-bed soils across the Laramie Basin and coarse granite grus off the Laramie and Snowy Ranges. Those soils change what a base has to sit on.
Across all of it, the choice comes down to two questions. Does the ground under the material drain, and does the surface need to hold together or let water through?
Delivery Across Natrona County
Wyoming Rock Supply delivers bulk material across Natrona County, including Casper, Evansville, Midwest, Alcova, Arminto, Hiland and Natrona.
You order online. Choose a quantity by the ton or by the yard, size the load with the calculator on the product page, and pick a delivery date at checkout.
A dump truck tips the load in one pile on site. Plan where that pile should sit before the truck arrives, because the driver does not place, spot or spread it.
Ground conditions decide when a delivery makes sense. Frozen ground and wet gumbo both stop compaction, so timing a load to the working season matters as much as the material itself.
Order Crushed Base and Stone for Your Natrona County Job
Wyoming Rock Supply delivers crushed base, washed stone, sand, soil and decorative rock across Natrona County, from Casper and Evansville to Midwest, Alcova, Arminto, Hiland and Natrona. Size your load with the calculator, choose your material, and pick a delivery date at checkout.
Place your order online and a truck will tip it on site.
