I know that nothing can be done perfectly at the first trial; I also know that each day brings its little quota of experiences, which with honest intentions, will lead to perfection after a while. --Washington Roebling His father conceived of the Brooklyn Bridge, but after John Roebling's sudden death, Washington Roebling built what has become one of American's most iconic structures--as much a part of New York as the Statue of Liberty or the Empire State Building. Yet, as recognizable as the bridge is, its builder is too often forgotten--and his life is of interest far beyond his chosen field. It is the story of immigrants, of the frontier, of the greatest crisis in American history, and of the making of the modern world. Forty years after the publication of The Great Bridge, David McCullough's classic chronicle of how the East River was spanned, Erica Wagner has written a fascinating biography of one of America's most distinguished engineers, a man whose long life was a model of courage in the face of extraordinary adversity. Chief Engineer is enriched by Roebling's own eloquent voice, unveiled in his recently discovered memoir that was previously thought lost to history.