Dau Construction

Haselhoff Construction specializes in pre-engineered metal buildings, boasting nearly 120 years of experience and a legacy of innovation initiated by Butler Manufacturing in 1901. The company focuses on delivering durable, high-quality building solutions that emphasize strength and longevity, utilizing advanced design and engineering capabilities. With a commitment to built-in lifetime savings and superior building quality, Haselhoff Construction serves a variety of industries, including aviation, logistics, retail, and more. Their industry-leading solutions, such as pre-cut and pre-punched components, allow builders to streamline projects and achieve flexibility and efficiency in construction. Generated from the website

Graves Construction offers a range of general contracting services for commercial and residential clients. The company conducts training sessions for the development of job skills. Established in 1920, Graves Construction is engaged in the construction of concrete slab, beam and steel girder bridges of various styles, types and sizes. The company builds bridges over highways, railroads, creeks and rivers. Graves Construction maintains a fleet of several cranes, excavators, hydraulic attachments and dump trucks. The company additionally constructs concrete and wood deck bridges. Graves Construction offers demolition, site clearing and structure removal services. The company provides online access to the Web sites of various construction associations and foundations.

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.