RAPID CITY, S.D.--(BUSINESS WIRE)--As the U.S. Air Force continues building the infrastructure needed to field the B-21 Raider, Conti Federal Services, LLC has been selected by the U.S. Army Corps of Engineers (USACE) Omaha District, to construct the $49.8 million 80 Row Environmental Protection Shelters (EPS) at Ellsworth Air Force Base (AFB). The award marks Conti Federal's tenth contract supporting the B-21 bed-down program, further expanding its role in one of the Air Force's most significa