Senior Airman Thomas Duffy, 22nd Civil Engineering Squadron pavement and equipment journeyman, and Airman 1st Class Koby Disotell, 22nd CES pavement and equipment apprentice, place concrete forms Sept. 4, 2019, at McConnell Air Force Base, Kan. The forms will be sprayed with oil to prevent the concrete from sticking. The forms will enclose the concrete until it hardens and takes shape. (U.S. Air Force photo by Airman 1st Class Alexi Myrick)