Crushed Base Course, Sand and Gravel Delivery in Teton County, MT
Montana Rock Supply brings gravel, stone and aggregate delivery in Teton County, MT to driveways, shop pads, patios and drainage runs. If you are building a drive or setting a shed base, crushed base course is the material that carries it.
Locally that means 3/4 minus, the standard Montana base. It is the same material the county and the state write into their specs, and it is the first thing to line up before anything else lands on the site.
Materials delivered in Teton County
Base material, washed stone, sand, soil and decorative rock all move by the ton or by the yard. Each product page has a calculator to size the load.
Crushed base course is specified in Montana as crushed base course, not by a trade nickname.
The MDT Standard Specifications cover it under Section 701.02.4, where grades are named by nominal top size: Grade 5A at 2 inch minus and Grade 6A at 1 1/2 inch minus, with 7A at 3/4 inch minus developed as pit sources for the larger sizes ran short.
City and county work is more often written against Section 02235, Crushed Base Course, of the Montana Public Works Standard Specifications. County road standards call sizes out the same way, as 3 inch minus sub-base and 1 inch minus crushed base or top course.
Choosing the right material
Start with what the surface has to do. A drive wants a compacted base under a road mix surface.
A drainage run wants clean washed stone with the fines taken out. Bedding under flatwork wants sand, and beds want soil or decorative rock.
Ground in neighbouring counties can push the choice around. Chouteau County sits on the Hi-Line and the northern glaciated plains, where glacial till over shale leaves a mix of clay, gravel, sand and silt, much of it heavy and slow-draining.
That kind of ground holds water instead of passing it, so a drainage layer matters more there than it does on ground that already sheds. Cascade County runs to deep silty and clayey prairie soils on the benches and across the Judith Basin, with gravelly terraces along the Missouri, Judith and Musselshell.
Lewis and Clark County spans more than one zone, taking in southwest and south-central mountain valleys and western intermontane valleys. Teton County's own ground is described below, and it is what the material choice here has to answer to.
Ground conditions across Teton County
Across the Rocky Mountain Front, the ground runs from gravelly glacial till and outwash along the mountain front to deep clay and silty prairie soils farther out. Creek bottoms carry cobble alluvium coming out of the mountains.
Water is the driver. Snowmelt comes off the front fast, upslope storms stall rain against the mountains, and prairie clay sheds water instead of taking it in.
That combination is why drainage stone and a compacted base both earn their place.
Erosion follows the same pattern. Wind works on open ground, creeks coming off the front flash runoff, and banks cut along the Teton, Marias and Two Medicine.
Riprap armors stream banks, culvert outlets, coulees and ditches against spring runoff.
This is chinook country. Long cold spells break when warm downslope winds lift temperatures in hours, so ground thaws and refreezes through the winter rather than staying frozen.
Published north-central Montana frost figures start around 42 inches and run deeper, and the local building department sets footing depth.
Work runs from breakup into autumn. Wind is constant enough here to matter for dust, bare soil and anything left unmulched, so shredded mulch holds better on slopes and in wind than nuggets do.
Delivery across Teton County
Order online and a dump truck tips the load on site in one pile. Have the drop area clear and reachable, and know where you want the pile to sit before the truck arrives.
Quantities are ordered by the ton or by the yard. Each product page has a calculator, and you pick a delivery date at checkout.
Delivery covers Choteau, Fairfield, Dutton, Power and Bynum along with the surrounding county ground. Pit run, crushed base course, washed rock and topsoil all arrive the same way, in bulk.
Order base, stone, sand and soil in Teton County
Montana Rock Supply delivers crushed base course, road mix, washed rock, sand, topsoil and decorative stone across Teton County for drives, pads, patios, drainage and beds. Choose the material that matches the job, size the load with the calculator, and order online for delivery.