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Concept
John A. Roebling
Summary
John Augustus Roebling (born Johann August Röbling; June 12, 1806 – July 22, 1869) was a German-born American civil engineer. He designed and built wire rope suspension bridges, in particular the Brooklyn Bridge, which has been designated as a National Historic Landmark and a National Historic Civil Engineering Landmark.
John Röbling was born to Friederike Dorothea Röbling (née Muelleren) and Christoph Polykarpus Röbling. Recognizing his intelligence at a young age, Roebling's mother arranged for him to be tutored in mathematics and science at Erfurt by Ephraim Salomon Unger. He went to Erfurt when he was 15. In 1824 he passed his Surveyor's examination and returned home for a year.
In 1824 he enrolled for two semesters at the Bauakademie in Berlin, where he studied architecture and engineering under Martin Friedrich Rabe (1765–1856), bridge construction and foundation construction under Johann Friedrich Dietlein (1782–1837), hydraulics under Johann Albert Eytelwein (1764–1848), and languages. Roebling also attended lectures of the philosopher Georg Wilhelm Friedrich Hegel. Roebling developed an interest in natural philosophy. Many years later, he worked on a 1000-page treatise about his own concepts of the universe.
In 1825 Roebling got a government job in the Arnsberg province, and moved to Eslohe, where he worked for four years on designing and supervising construction of military roads. During this period he made sketches for suspension bridges over Ruhr- and Lenne-river, which were never built. In 1829 he returned to his home to work out his final thesis and prepare for his second engineer examination. For unknown reasons, he never took the examination.
On May 22, 1831, Roebling left Prussia with a group of emigrants bound for the United States. They included his brother Carl and the older Johann Adolphus Etzler, who believed in a technological utopia. Engineers had difficulty advancing and achieving economic mobility in Prussian society, in part because of the Napoleonic Wars, which had lasted until 1815, and suppressed investment in infrastructure.
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