SIOUX FALLS, S.D. (MITCHELLNOW) A major expansion is about to get underway at the Sioux Falls airport. Crews will break ground tomorrow at 11:30 a.m. on a project that adds a new concourse and five additional gates. Airport leaders say the upgrade will improve travel options, provide more space for passengers, and prepare for future growth. Travelers should expect to see increased construction activity around the terminal in the coming weeks. For more Government stories from MitchellNow.com, Click Here.