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The Panama Canal Gets "Supersized"
A super large container ship or a 'post-Panamax,' which requires the expansion of the Panama Canal. Credit: Radiant Features / the History Channel Huge quantities of steel and concrete are required to line the canal. Credit: Radiant Features / the History Channel Another view of the gates. Credit: Radiant Features / the History Channel An engineer stands in front of the massive lock gates being used in the Panama Canal expansion. Credit: Radiant Features / the History Channel The project requires two very different types of excavations, one for the Pacific and one for the Atlantic sides of the Canal. Credit: Radiant Features / the History Channel

Huge quantities of steel and concrete are required to line the canal. Credit: Radiant Features / the History Channel
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Huge quantities of steel and concrete are required to line the canal. Credit: Radiant Features / the History Channel