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James C. Duane
June 10, 1824(1824-06-10) – December 8, 1897 (aged 73)
James Chatham Duane.jpg
James Chatham Duane
Place of birth Schenectady, New York
Place of death New York City
Allegiance United States of America
Service/branch United States Army
Union Army
Years of service 1848-1888
Rank Brigadier General
Commands held US Army Corps of Engineers
Battles/wars Utah War
American Civil War
Relations James Duane (grandfather)

James Chatham Duane (June 10, 1824 – December 8, 1897) was an engineering officer in the Union Army during the American Civil War, being the Chief Engineer of the Army of the Potomac.

Duane was born in Schenectady, New York. His grandfather James Duane was a member of the Continental Congress and mayor of New York City. Duane graduated from Union College in 1844 and from the United States Military Academy in 1848, where he ranked third in his class. He taught practical military engineering there from 1852–54 during the superintendency of Robert E. Lee. Serving with the Army's company of sappers, miners, and pontoniers for nine years before the American Civil War, he led the engineers on a 1,100-mile march on the Utah Expedition in 1858 and commanded select engineer troops to guard President Abraham Lincoln at his inauguration in 1861.

Duane built the first military pontoon bridge over the Potomac River at the Battle of Harpers Ferry in 1862, served as Chief Engineer of the Army of the Potomac from 1863–65, and in seven hours in 1864 built the longest pontoon bridge of the Civil War (2,170 ft) across the James River.

He commanded at Willets Point, New York, from 1866–1868, and for ten years constructed fortifications along the coasts of Maine and New Hampshire. He was president of the Board of Engineers from 1884-1886. Appointed Chief of Engineers in 1886, he retired in 1888. He then became Commissioner of Croton Aqueduct in New York City. He published a paper on the "History of the Bridge Equipage in the United States Army." General Duane died in New York City.

See also


This article contains public domain text from "Brigadier General James Chatham Duane". Portrats and Profiles of Chief Engineers. Retrieved May 24, 2005.  

Military offices
Preceded by
John Newton
Chief of Engineers
Succeeded by
Thomas Lincoln Casey


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