Products

• Aggregate
• Asphalt
• Building Materials
• Ready Mix Concrete
• Masonry

Construction

• Asphalt Paving
• Site Development and Grading

Specialty Services

• Concrete Pumping
• Airport Construction and Maintenance

Knife River Materials

Knife River Materials (formerly Northstar Materials, Inc.) produces and supplies sand and gravel, concrete block, ready-mixed concrete, asphalt, landscape pavers and construction supplies in northwestern Minnesota and eastern North Dakota.

Main Office Location