Gustav Lindenthal (May 21, 1850 – July 31, 1935) was a civil engineer who designed the Queensboro and Hell Gate bridges in New York City, among other bridges. Lindenthal's work was greatly affected by his pursuit for perfection and his love of art. Having received little formal education and no degree in civil engineering, Lindenthal based his work on his prior experience and techniques used by other engineers of the time. Early life Lindenthal was born in Brünn, Austrian Empire, now Brno, Czech Republic in 1850. Lindenthal began to receive practical training in 1866 when he was employed as a mason and carpenter. At the age of 18, Lindenthal left his family to set out to make a life of his own in Vienna, Austria. Career When he arrived in Vienna he became an assistant in the engineering department for the Empress Elisabeth Railway of Austria. Two years later he joined the Union Construction Company, where he gained experience in building incline planes and railroads. Then a year later he decided to join the Swiss National Railroad, where he was hired on as a division engineer in charge of location and construction. While living in Vienna, he attended some public engineering lectures at a local university. However, he never did actually attend the university or receive a degree. Lindenthal in fact taught himself mathematics, engineering theory, metallurgy, hydraulics, estimating, management, and everything else that a successful bridge engineer needed to know. Nevertheless, the lack of his formal education hindered him from further advancement in Europe, so he decided to emigrate to the United States in 1874. When he first arrived in the United States he was employed as a journeyman stonemason for the memorial granite building of the Centennial International Exhibition in Philadelphia in 1876. After completion of this project, Lindenthal worked for the Keystone Bridge Company of Pittsburgh, Pennsylvania, on numerous projects over a three-year period. While working for this company, he gained valuable experience which propelled him to the status of bridge engineer. He worked for the Atlantic and Great Western Railroad during 1879 to 1881. In 1881, Lindenthal established his own consulting business and built four bridges in the Pittsburgh area: 30th Street Bridge (Herrs Island); Smithfield Street Bridge (over the Monongahela River; 1883), Youghiogheny River Bridge at McKeesport (1883); and the Seventh Street Bridge (Allegheny River; 1884). In 1884, he founded the North River Bridge Company