CongAgra Foods plans a $50 million expansion of its Waterloo plant that will add about 55 jobs. The proposed project at the plant, located in the Waterloo MidPort Industrial Park, will add about 99,000 square feet to the plant and increase production capacity by 30 percent, according to a release from the Greater Cedar Valley Alliance & Chamber. ConAgra Foods makes consumer snacks marketed under the Snack Pack and Swiss Miss brand names at its Waterloo facility. The expansion project will add David brand snack seed production. Hawkeye Community College will support the project with training through the Iowa Industrial New Jobs Training Program valued at about $536,000.