Knife River – Midwest Division (formerly Fred Carlson Company; Becker Gravel Co.; Brower Construction Co.; Irving F. Jensen Co.; Pederson Bros.; and Roverud Construction) is a vertically integrated concrete and asphalt paving and sitework contractor and an aggregate and mining production company that serves Iowa and surrounding states. Knife River - Midwest Division's primary locations are in Decorah and Sioux City, Iowa.