ST. LOUIS - Kaskaskia Engineering Group, a civil engineering and construction contracting firm based in Belleville, has opened an office in St. Paul, Minnesota, positioning itself to take advantage of billions of dollars in projects in the state. "We expect $10 billion will be slated over the next 10 years for public infrastructure improvements and private development in the Twin Cities metropolitan area alone," Geri Boyer, KEG's president and founder, said. "Nearly $6.8 billion is projected...