Alluvial Gravel Production
Alluvial gravel is one of the three major aggregates in our region. In the tristate area we serve – Montana, Wyoming, and North Dakota – gravel is mostly sourced from alluvial deposits.
At Melgaard Construction, we mine this alluvial gravel from our own quarries to ensure a steady supply of gravel for all our local production projects. We also offer excess gravel for sale to the construction industry at large in any specified grade.
What Is Alluvial Gravel?
Alluvial gravel is a generic term that describes any small, rounded stones deposited by flowing water – whether rivers, streams, or ancient glaciers. When deposited by glaciers, this gravel is often covered by overburden and must be mined in quarries known as gravel pits. Although it can have a diverse mineral composition, quartz and granite are common, making these stones harder and more durable than most other forms of aggregate.
Uses of Gravel
Melgaard Construction uses gravel for a number of different applications, including:
Gravel is commonly used as a road base. A foot of pure aggregate is commonly spread over the subgrade (compacted soil) to protect it from excessive direct force. Gravel also makes up most the next layer of bituminous binder, where it is mixed with asphalt. Pure gravel roads, where the aggregate is used for surfacing is also common, particularly in rural regions and to create temporary and permanent access roads from ranching needs to oil and gas industry.
The concrete slab that forms the foundation of nearly every major construction project cannot be laid directly on the soil, due to the weakness and shifting nature of the dirt. Instead, a layer of aggregate – commonly gravel – is used as under-slab fill to stabilize the base of a project.
Oil and gas pipeline
Pipelines need frequent maintenance and access roads are usually created during the construction process. These roads are often made of gravel, which provides more traction and stability than dirt, but less unnecessary expense than asphalt.
Aggregate is an important component of concrete. Where gravel is readily available, it is often used to lessen the cost of production, and eliminate the need to import other forms of rock.
Construction projects along hilly regions, particularly near bodies of water, can cause rapid erosion unless steps are taken to prevent it. Some of the methods used to control erosion include diversion ditches and interceptor dikes, both of which may be lined or filled with gravel.
Benefits Of Local Gravel Supplies
The low cost of gravel is a great boon to budget-conscious construction projects; however, it also makes long-distance transportation impractical, since the cost of transportation would far exceed the value of the product.
This is one reason why Melgaard Construction maintains gravel pits across the tristate region to provide for our construction needs. We also make excess gravel available to the construction industry at-large, filling an urgent need in urban areas for locally-sourced alluvial stone.
If your project requires commercial alluvial gravel or if you’re looking for a construction company who has a reputation for excellence paired with an economical source of raw materials, give Melgaard Construction a call for more information at (307) 687-1600.