Knife River Corporation operates as a diversified construction materials and contracting company, providing a range of services and products essential to infrastructure development across the western United States. The company’s core business activities include mining, processing and distributing construction aggregates such as crushed stone, sand and gravel; manufacturing asphalt mix and ready-mix concrete; and delivering comprehensive civil contracting services. By integrating these operations, Knife River aims to streamline project delivery for clients in sectors including transportation, municipal, commercial and residential development.
With a network of more than 150 processing plants and asphalt and concrete facilities, Knife River maintains a robust distribution system that ensures materials are delivered efficiently to job sites in more than a dozen western states. The company’s fleet of haul trucks, rail‐served terminals and warehousing capabilities support large‐scale projects by reducing lead times and optimizing logistics. Knife River’s aggregate reserves and long‐term mining permits underpin its ability to meet regional demand for quality raw materials well into the future.
Beyond materials supply, Knife River offers a full suite of civil construction services, including highway repair and reconstruction, airport runway paving, dam and levee construction, and site development. Its specialized equipment and experienced crews allow it to undertake complex infrastructure projects, from grading and earthwork to paving and resurfacing. Collaboration between the materials divisions and the contracting teams enhances project coordination, cost management and quality control, positioning Knife River as a one‐stop partner for public agencies and private developers alike.
Established through a series of regional mergers in the late 20th century, Knife River has a legacy that dates back more than 75 years. The company is led by an executive team with deep experience in the construction and aggregates industries, supported by an operational leadership structure organized around safety, sustainability and customer focus. Headquartered in Bismarck, North Dakota, Knife River continues to build on its heritage by investing in new technologies, environmental stewardship initiatives and community partnerships across the western United States.
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