Senior Airmen Antonio Martinez and Juan Reynoso shovel soft sand over new piping March 24 at Balad Air Base, Iraq. The sand will protect and cushion the newly installed pipes in the Air Force housing area from rocks. The pipe infrastructure replacement project is scheduled to be completed by mid-June. Both Airmen are 332nd Civil Engineer Squadron fuels and utilities plumbers deployed from Peterson Air Force Base, Colo. (U.S. Air Force photo/Senior Airman Julianne Showalter)