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Buy the "Great Projects" videos and companion book at ShopPBS. |
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Inhumane Heat More than 1,000 men toiled in round-the-clock shifts to dig out the four tunnels, where temperatures reached 140 degrees. Some five thousand men worked on the dam project, tolerating brutal conditions because the Great Depression offered them little choice. Some were experienced miners and construction men; many more were farmers, clerks, teachers and professionals (even a violinist) who had run out of options. |
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  How engineers contained and controlled the Colorado and Mississippi rivers. Thomas Edison lights up New York City; Sam Insull brings power to Chicago; and TVA electrifies rural America Constructing the George Washington Bridge Putting a major highway under Boston  |
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