I just finished doing the layout on a feature for the January-February 2007 issue of Army Engineer, which involves the 84th Engineer Battalion's construction of the Libby Bridge during the Korean War. The project was more suited for a large civilian contractor to take on, and the Soldiers involved from the 84th had almost zero experience and training in building this sort of massive, long, high, concrete pier and deck bridge over the Imjin River. And they had to do it in the midst of a Korean winter, with orders to be done in only seven months.
The Operations Officer of the battalion was quoted as saying, "We didn't do anything on time except finish." That pretty much sums it up. They got the job done, under exceptionally harsh working conditions, during a war, with little prior experience and construction expertise pertaining to needed skills, and with daily challenges that would cause most others to say "it's too tough!".
It's always been this way with Army Engineers. They get the job done, no matter the challenges placed before them.