Senior Airman Nicholas Eslick, 28th Civil Engineer Squadron heavy equipment and pavement technician, spreads freshly-poured concrete for a new section of sidewalk at Ellsworth Air Force Base, S.D., July 16, 2014. Pavement and construction specialists operate and maintain heavy construction equipment such as front-end loaders, bulldozers, dump trucks, skid steer loaders and road graders to keep operations running at Ellsworth. (U.S. Air Force photo by Senior Airman Zachary Hada/Released)