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Starrucca Viaduct
Society: ASCEMain Category: CivilSub Category: BridgesEra: 1840-1849DateCreated: 1848Starrucca CreekLanesboroState: PAZip: 18847Country: USAWebsite: http://www.asce.org/Project/Starrucca-Viaduct/Creator: Adams, Julius , Kirkwood, James

The Starrucca Viaduct of the Erie Railroad Company crosses Starrucca Creek in Lanesboro, Pennsylvania. It is one of the oldest and one of the longest railroad bridges in Pennsylvania. Its 18 slender, semicircular stone arches each span 50 feet and the structure rises 110 feet above the creek.

YearAdded:
1973
Image Credit: Courtesy Flickr/Navin Rajagopalan (CC BY-SA 2.0)Image Caption: Starrucca ViaductEra_date_from: 1848
Conwy Suspension Bridge
Society: ASCEMain Category: CivilSub Category: BridgesEra: 1800-1829DateCreated: 1826River ConwyState: North WalesCountry: UKWebsite: http://www.asce.org/Project/Conwy-Suspension-Bridge/Creator: Telford, Thomas

When a new road bridge was constructed alongside it, plans were made to demolish the Conwy Suspension Bridge. There was a national outcry and, since 1958, the bridge has been in the care of the National Trust and closed to vehicular traffic.

YearAdded:
2002
Image Credit: Courtesy Flickr/Verity Cridland (CC BY 2.0)Image Caption: Conwy Suspension BridgeEra_date_from: 1826
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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