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1864

Moseley Wrought Iron Arch Bridge
Society: ASCEMain Category: CivilSub Category: BridgesEra: 1860-1869DateCreated: 1864North CanalNorth AndoverState: MAZip: 01845Country: USAWebsite: http://www.asce.org/Project/Moseley-Wrought-Iron-Arch-Bridge/Creator: Moseley Iron Building Works

Designed, patented, and built by Thomas W.H. Moseley, this arched 96-foot span bridge preceded by years the standard use of wrought iron for bridges. For the first time in the United States, Moseley incorporated the use of riveted wrought-iron plates for the triangular-shaped top chord.

YearAdded:
1998
Image Credit: Courtesy Wikicommons/Elizabeth Thomsen (CC BY-SA 3.0)Image Caption: Moseley Arch, Merrimack College, North Andover, MassachusettsEra_date_from: 1864
Cabin John Aqueduct
Society: ASCEMain Category: CivilSub Category: Bridges, Transportation, Water Supply & ControlEra: 1860-1869DateCreated: 1864Cabin JohnState: MDCountry: USAWebsite: http://www.asce.org/Project/Cabin-John-Aqueduct/Creator: Meigs, Montgomery

Cabin John Aqueduct, designed by Montgomery C. Meigs, conveys drinking water from Great Falls, Maryland to Washington, D.C. It was the longest stone masonry arch in the world for nearly 40 years. The segmental arch of the bridge has a span of 220 feet and a rise of only 57 feet. The main arch ring is built of cut and dressed granite. The secondary arch ring is radially-laid sandstone, of which the rest of the bridge is also constructed. 

YearAdded:
1972
Image Credit: Public Domain (Author's Choice)Image Caption: Cabin John AqueductEra_date_from: 1864
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