In 1935, a group of engineers and construction workers stood atop the Hoover Dam in a remarkable feat of engineering. The men stood in a 45-ton steel pipe, suspended over the dam, in order to measure the pressure of the water flowing through. This innovation allowed for the construction of the dam to proceed safely and securely. This is just one example of the amazing feats of engineering that have gone into constructing the Hoover Dam. The dam is an impressive structure that has been standing since 1935, and it stands as a testament to the hard work, dedication, and … Men stand in 45-ton steel pipe over the Hoover Dam, 1935. részletei…