This is a story about the triumph of engineering in finding a solution to manage flooding on the greatest American river. For a century, men had tried to manage the Mississippi River to reduce flooding, but most engineering efforts had limited effect. When the Great Flood of 1927 revealed the insufficiency of these efforts, the U.S. Army Corps of Engineers developed a plan to provide flood protection to the Mississippi Valley that relied mostly on the diversion of flood down side channels. This plan proved fatally flawed. Not only did it not use all possible solutions, it did not take property owners in the proposed floodways into account. Rammed through Congress by the political machinations of Chief of Engineers Maj. Gen. Edgar Jadwin, the plan was on the verge of failure as litigation halted its implementation, leaving the valley vulnerable to the next flood. Only when Col. Harley B. Ferguson presented a new plan for lowering floods through cutoffs (cutting across the meandering loops of the river) was the Mississippi River Commission able to reduce flooding by shortening and realigning the river. By going against the grain of accepted engineering theory, Ferguson was able to develop a plan that ultimately saved the Mississippi River project, preserved the reputation of the Corps, and protected the valley from potential destruction.