|A problem solved by the engineers It was a long step from Caesar's wooden bridges to the difficulties which confronted the United States Construction Corps in the Civil War. Here is an example of its work. Time and again, during 1862-63, the bridges on the line of the Orange & Alexandria Railroad were destroyed by both sides in advance and in retreat. It remained for the army engineers to reconstruct them. It was a work requiring patience and unceasing activity, for speed was of prime importance. These structures, capable of supporting the passage of heavy railroad trains, and built in a few hours, were conspicuous triumphs which the American engineers added to the annals of war.|
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