Airman 1st Class Casey Pritchard assembles a section of the experimental AquaFence flood protection barrier. U.S. Air Force Airman 1st Class Casey Pritchard, with the 119th Civil Engineer Squadron, North Dakota Air National Guard, assembles a section of the experimental AquaFence flood protection barrier in Fargo, N.D., on March 17, 2010. The fence is being installed to see if it can be an effective flood barrier. SHARE: Download: Full Size (0.07 MB) Credit: VIRIN: 562823-C-YKU95-284.jpg Photo Gallery