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Buy the "Great Projects" videos and companion book at ShopPBS. |
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The Ted Williams Tunnel Engineers built a new tunnel to Logan airport to reduce traffic going through downtown. In a Baltimore shipyard, builders created twelve enormous elliptical steel tubes, each longer than a football field, 80 feet wide and 40 feet high. Each tube was placed on a barge and towed to Boston. Using the biggest dredge in the world, workers dug a trench across the bottom of the harbor where the tubes were laid. Named for Boston's most famous baseball player, the Ted Williams Tunnel opened in December, 1995. |
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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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