Corps contractors are using a technology known as "Flexifloats," in Operation Hope in New Orleans, LA. These are barges made up by locking together floating modules in whatever combination and number is necessary. The modules are carried to the scene by flat bed trailers and can be disassembled and lifted over barriers. Here a flexifloat barge delivers 15,000 pound sand bags to plug a breach in the 17th Street Canal in Jefferson Parrish, New Orleans. The spuds are modular as well and the backhoe serves both to move the sand bags and to propel the barge by reaching out and grasping the bottom of the canal and then pulling in the direction operators wish to move. (Army Corps of Engineers Photo by Alan Dooley)

http://www.usace.army.mil/katrina-images/DSC_0157.JPG

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