Knife River is an aggregates-based, vertically integrated construction materials company. We operate in 14 states and we’re the fifth-largest producer of sand and gravel in the country.

We have 188 aggregate sites totaling over 1 billion tons of reserves. Our aggregates are the foundation of our business, and they support our downstream products, which include asphalt and ready-mix concrete.

In addition to being a leading supplier of construction materials, we also are a provider of contracting services. We perform construction in 12 of our 14 states, with a business mix heavily weighted to public-sector projects.

We believe this combination of products and services has been beneficial over time, contributing to industry-leading return on investment. We operate in mid-size, high-growth markets and are committed to long-term growth and value creation.

Ultimately, our goal is to use our materials to build the roads, bridges and airport runways that connect people with where they want to go.


1.1B Tons Reserve


101 Plants


56 Plants


Services in 12 of our
14 States

Knife River - States of Operation