Van't Hof Concrete, 369 6th Ave NW, Sioux Center, IA 51250, US

Knife River Midwest is a mining production company that serves customers throughout Iowa. The company offers a range of building materials, including concrete and asphalt. Knife River Midwest is a part of Knife River Corporation, which provides construction and maintenance services for airport facilities throughout the United States. Founded in 1917, the company offers a variety of construction materials, such as aggregate, cement and ready-mix concrete. It provides products for the construction of foundations, landscape retaining walls and paver systems. The company offers asphalt paving, engineering, site development and grading services. It also provides marine construction, petroleum recycling, concrete pumping and contaminated soil remediation services. Knife River Corporation manages a staff of more than 5,000 employees.