Bulk Aggregate Delivery Across Hill County, MT
Montana Rock Supply sells gravel, stone and aggregate delivery in Hill County, MT, ordered online and tipped on site by dump truck. Start with the calculator on any product page to size the load, then pick your material.
Crushed base course is the base most ground here gets built on.
Hill County spans two ground regions. Around Havre, Rudyard, Gildford and Hingham the ground is glacial till over shale, heavy and slow-draining.
Around Box Elder it turns to silty prairie soil over gravelly terraces.
Ground Conditions Across Hill County
On the Hi-Line and the northern glaciated plains, the till is a mix of clay, gravel, sand and silt left by ice and glacial lakes. Much of it is heavy and drains slowly, and coulee and river-bottom alluvium cuts down through it.
In the Central Montana benchlands and island ranges, the soils are deep silt and clay on the benches. Gravelly terraces run along the Missouri, Judith and Musselshell, and the island ranges carry shallow stony ground.
Slow drainage is the practical problem. Snowmelt ponds on subsoil that is still frozen, and a semi-arid year breaks with a few intense summer storms.
Wind moves bare ground, coulees sheet and gully, and banks cut along the Milk and the Missouri. On the benchland side, wind works open farmland and silt and clay slopes gully.
Frost is in the ground from late autumn into spring on the Hi-Line, and compaction waits for it to come out. Work on the benchlands runs from breakup into autumn.
The local building department sets footing depth.
Materials Delivered in Hill County
Order by what you are building. A drive, a patio and a drain each want a different material, and the local name is the one to use.
Crushed base course is the one to know here. In Montana, base material is specified as crushed base course, and the MDT Standard Specifications for Road and Bridge Construction cover it under Section 701.02.4, naming grades by nominal top size.
Grade 5A is 2 inch minus and Grade 6A is 1 1/2 inch minus. A 3/4 inch minus grade, 7A, was developed for MDT 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.
For a decorative bed, Yellowstone River Rock is rounded river-washed stone, the usual alternative to bark in a dry climate.
Choosing the Right Material
Blaine, Chouteau and Liberty counties sit in the same region and the same ground region as Hill County. Glacial till over shale, heavy and slow-draining, with coulee and river-bottom alluvium cut through it.
The ground is the same across those lines, so the base and drainage choice does not change from one county to the next. What changes is where you build on it.
On heavy till, a compacted crushed base course carries the load and pit run goes below it to raise grade. Where water has nowhere to go, washed rock in a drain moves it away from the base.
On the benchland side, clay subgrades soften as soon as they wet up. Spring snowmelt runs across ground still frozen underneath, so drainage matters as much as the base itself.
For a finished drive, road mix packs hard. For a walkway, Walkway Gravel gives a finer, walkable surface than a drive.
For a patio, screenings bed the pavers and Washed Sand levels under flatwork.
Delivery Across Hill County
Order online and choose a quantity by the ton or by the yard. Each product page has a calculator to help size the load, and you pick a delivery date at checkout.
Montana Rock Supply delivers across Hill County, including Havre, Rudyard, Gildford, Hingham, Box Elder, Kremlin and Inverness. A dump truck tips the load in one pile on site.
Have the delivery area clear and reachable by a dump truck, with room for the pile. The driver tips the load and leaves it where it lands.
Order Crushed Base Course for Hill County
Crushed base course is the base material for drives, pads and patios across Hill County, and it is specified here as crushed base course under the Montana standards. Montana Rock Supply delivers it, along with pit run, road mix, washed rock and topsoil, to Havre, Rudyard, Gildford, Hingham, Box Elder, Kremlin and Inverness.
Size your load with the calculator and place your order online.
