Knife River adds South Dakota’s Sweetman/Concrete Materials

Sources: MDU Resources Group Inc., Bismarck, N.D.; CP staff

MDU Resources has closed on Sweetman Const. Co., an integrated ready mixed, aggregates and asphalt producer serving the Sioux Falls, S.D., market and operating as Concrete Materials Co. The company and its 260 employees join the North Central Region—Dakotas, Iowa, Minnesota, Nebraska—of MDU’s Knife River Corp. construction materials subsidiary. 

With upward of 55 million tons of reserves, Sweetman aggregate operations serve seven ready mixed concrete plants and a 65-mixer fleet, plus three asphalt production sites. The company also owns a rail line and rail transloading service augmenting the Sioux Falls plants. “Sweetman has been a key player in the area for nearly 90 years. Its team members’ relationships and expertise are important as we look to continue to provide great service throughout the region,” says MDU CEO David Goodin.

“[Our] success has been built on acquisitions like this,” adds Knife River CEO David Barney. “Sioux Falls has a strong and diverse economy. The Sweetman companies have a successful history there, and we look forward to continuing to support construction in Sioux Falls for generations to come.”