Concrete Services, Contractors & Supplies go Results Found: 2 Button group with nested dropdown Strata Corporation Strata Corporation PO Box 13500 Grand Forks ND 58208 (701) 258-3925 Knife River Corporation - North Dako... Knife River Corporation - North Dakota Division 1150 W. Century Ave. Bismarck ND 58503 (701) 530-1400