'Alexander's Bridge' is a novel by Willa Cather, which tells the story of successful engineer Bartley Alexander. Despite being in a happy marriage, he starts an affair with an old love from his youth. As he wrestles with his commitment to his wife and his feelings for his old flame, the bridge he is constructing begins to show signs of instability. The novel suggests a parallel between Alexander's personal life and professional life, culminating in a dramatic climax.