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John Augustus Roebling (born June 12, 1806, Mühlhausen, Prussia [now in Germany]—died July 22, 1869, Brooklyn, New York, U.S.) was a German-born American civil engineer, a pioneer in the design of suspension bridges.
- 2-Min Summary
He died from an injury he received as construction began....
- 2-Min Summary
John Augustus Roebling (born Johann August Röbling; June 12, 1806 – July 22, 1869) was a German-born American civil engineer. [1] 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 .
- From Germany to Pennsylvania
- Building Projects
- Elements of A Suspension Bridge
- Restoration of The Delaware Aqueduct
- Roebling's Wire Company
- Roebling's U.S. Patents
- Archives and Collections For Further Research
- Sources
1824 - 1826, Polytechnic Institute, Berlin, Germany, studying architecture, engineering, bridge construction, hydraulics, and philosopy. After graduating, Roebling built roads for the Prussian gove...1831, sailed to Philadelphia, PA with his brother Karl. They planned to migrate to western Pennsylvania and develop a farming community, although they knew nothing about farming. The brothers bough...May 1936, married Johanna Herting, the town tailor's daughter1837, Roebling became a citizen and a father. After his brother died of heatstroke while farming, Roebling began working for the State of Pennsylvania as a surveyor and engineer, where he built dam...1842, Roebling proposed that the Allegheny Portage Railroadreplace their continually breaking hemp coil ropes with steel coil ropes, a method he had read about in a German magazine. Wilhelm Albert...1844, Roebling won a commission to engineer a suspension aqueduct to carry canal water over the Allegheny River near Pittsburgh. The aqueduct bridge was successful from its opening in 1845 until 18...1846, Smithfield Street Bridge, Pittsburgh (replaced in 1883)1847 - 1848, the Delaware Aqueduct, the oldest surviving suspension bridge in the U.S. Between 1847 and 1851 Roebling built four D&H Canal aqueducts.Cables are attached to stone piersCast iron saddles sit on the cablesWrought-iron suspender rods sit on the saddles, with both ends hanging vertically from the saddleSuspenders attach to hanger plates to support part of the aqueduct or bridge deck flooring1980, bought by the National Park Service to be preserved as part of Upper Delaware Scenic & Recreational RiverAlmost all of the existing ironwork (cables, saddles, and suspenders) are the same materials installed when the structure was built.The two suspension cables encased in red pipingare made of wrought iron strands, spun on site under the direction of John Roebling in 1847.Each 8 1/2-inch diameter suspension cable carries 2,150 wires bunched into seven strands. Laboratory tests in 1983 concluded that the cable was still functional.In 1848, Roebling moved his family to Trenton, New Jersey to start his own business and take advantage of his patents. 1. 1850, established John A. Roebling's Sons Companyto manufacture wire rope. Of Roebling's seven adult children, three sons (Washington Augustus, Ferdinand William, and Charles Gustavus) would eventually work for the compnay 2. 19...
Patent Number 2,720, dated July 16, 1842, "Method of and Machine for Manufacturing Wire Ropes" "What I claim as my original invention and desire to secure by Letters Patent is: 1. The process of gi...Patent Number 4,710, dated August 26, 1846, "Anchoring Suspension-Chains for Bridges" "My improvement consists in a new mode of anchorage applicable to wire bridges as well as chain bridges...What...Patent Number 4,945, dated January 26, 1847, "Apparatus for Passing Suspension-Wires for Bridges Across Rivers" "What I claim as my original invention, and wish to secure by Letters Patent, is -- T...John A. Roebling Collection, National Museum of American History, Smithsonian InstitutionThe Roebling Museum, Roebling, New JerseyThe Great Bridgeby David McCullough, New York: Simon and Schuster, 1972, Chapter 2John Roebling, Upper Delaware, National Park Service- Jackie Craven
He died from an injury he received as construction began. Washington completed the project in 1883; himself incapacitated from 1872 by decompression sickness, his completion of the work depended heavily on his wife, Emily Warren Roebling.
Feb 26, 2024 · In late June 1869, John Augustus Roebling, the celebrated designer and builder of wire rope suspension bridges, was surveying his new project site in Lower Manhattan when an approaching ferry...
- Sarah Pruitt
- 1 min
May 29, 2018 · During the first stages of construction, Roebling suffered an accident while inspecting the stone base-pilings of the bridge and his foot was crushed. An infection quickly set in and he died of tetanus complications on July 22, 1869.
When his brother died unexpectedly that same year, he applied for citizenship, using the name John A. Roebling. Meanwhile, Roebling realized he was ill-suited to farm work. He began taking part-time surveying and construction jobs at nearby canal projects.
