28th CES performs speed training exercise
Senior Airman Thomas Goss, 28th Civil Engineer Squadron pavements and construction heavy equipment operator, and fellow Airmen spread out a fiberglass mat during a training exercise at Ellsworth Air Force Base, S.D., Sept. 30, 2015. The fiberglass mat was approximately 60 feet by 50 feet and is used to cover a simulated crater once it had been filled and flattened. (U.S. Air Force photo by Airman Sadie Colbert/Released)