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Bridges

Craigellachie Bridge
Society: ASCE Main Category: Civil Sub Category: Bridges Era: 1800-1829 DateCreated: 1814 A941 Aberlour State: Moray Zip: AB38 Country: UK Website: http://www.asce.org/Project/Craigellachie-Bridge/ Creator: Telford, Thomas

This elegant cast iron arch bridge designed by Scotland's famous Thomas Telford was built from 1812 to 1814.  It is the earliest surviving example of a portable lattice-braced standard type that Telford developed for use at wide and deep water crossing sites unsuitable for masonry spans.  At least 10 of these bridge types were erected throughout Britain between 1814 and 1829.

YearAdded:
2007
Image Credit: Courtesy Flickr/Graham Robertson (CC BY 2.0) Image Caption: Craigellachie Bridge Era_date_from: 1814
Cortland Street Drawbridge
Society: ASCE Main Category: Civil Sub Category: Bridges Era: 1900-1909 DateCreated: 1902 River Chicago State: IL Zip: 60642 Country: USA Website: http://www.asce.org/Project/Cortland-Street-Drawbridge/ Creator: Ericson, John , Wilmann, Edward

In 1899, engineers from the City of Chicago's Division of Bridges and Viaducts performed a survey of moveable bridge design in the U.S. and Europe. Their study led to the conclusion that the unusual trunnion bascule design would best meet their needs.

YearAdded:
1981
Image Credit: Courtesy Flickr/Matthew Black (CC BY-SA 2.0) Image Caption: Cortland Street Drawbridge Era_date_from: 1902
Cornish - Windsor Covered Bridge
Society: ASCE Main Category: Civil Sub Category: Bridges Era: 1860-1869 DateCreated: 1866 Windsor Covered Bridge Cornish State: VT Zip: 03745 Country: USA Website: http://www.asce.org/project/cornish-windsor-covered-bridge/ Creator: Town, Ithiel

The Cornish-Windsor Covered Bridge is the longest wooden bridge in the United States and the longest two-span, covered bridge in the world. It is also a classic example of wooden bridge-building in 19th-century America. With copious supplies of timber at hand and a generous reserve of carpentry skills available, bridge builders in early America quickly discarded the masonry arches prevalent in the Old World. Instead, they opted for a revival of timber-truss designs dating from 14th century Europe.

YearAdded:
1970
Image Credit: Courtesy Flickr/aussiegtl (CC BY 2.0) Image Caption: Cornish - Windsor Covered Bridge Era_date_from: 1866
Conwy Tubular Bridge
Society: ASCE Main Category: Civil Sub Category: Bridges, Roads & Rails Era: 1840-1849 DateCreated: 1849 River Conwy State: North Whales Zip: Country: UK Website: http://www.asce.org/Project/Conwy-Tubular-Bridge/ Creator: Stephenson, Robert

Built by Robert Stephenson to carry the Chester and Holyhead Railway across the River Conwy, this bridge was erected between 1846 and 1848. It consists of a single span 400 feet long, formed by two parallel rectangular wrought iron tubes, each weighing 1300 tons. Masonry towers were built on the abutments and topped with battlements and turrets to harmonize with the nearby Conwy Castle. The Conwy Tubular Bridge was the first railway bridge in which trains ran through the main girders. It represents a pioneering use of wrought iron for bridges.

YearAdded:
2002
Image Credit: Original Photo: Flickr/Glenn J. Mason Image Caption: Conwy Tubular Bridge Era_date_from: 1849
Conwy Suspension Bridge
Society: ASCE Main Category: Civil Sub Category: Bridges Era: 1800-1829 DateCreated: 1826 River Conwy State: North Wales Zip: Country: UK Website: 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 Bridge Era_date_from: 1826
Columbia-Wrightsville Bridge
Society: ASCE Main Category: Civil Sub Category: Bridges Era: 1930-1939 DateCreated: 1930 Veterans Memorial Bridge West Hempfield State: PA Zip: Country: USA Website: http://www.asce.org/Project/Columbia-Wrightsville-Bridge/ Creator: Long, James , Wiley-Maxon Construction Company

The total length of the Columbia-Wrightsville Bridge is 7,374 feet. Its construction required 100,000 cubic yards of concrete and 8 million pounds of steel reinforcing rods.

YearAdded:
1984
Image Credit: Courtesy Flickr/Gerry Dincher (CC BY-SA 2.0) Image Caption: Columbia-Wrightsville Bridge Era_date_from: 1930
Choate Bridge
Society: ASCE Main Category: Civil Sub Category: Bridges Era: 1750-1799 DateCreated: 1764 River Ipswich State: MA Zip: 01938 Country: USA Website: http://www.asce.org/Project/Choate-Bridge/ Creator: Choate, John

The Choate Bridge of Essex County, completed in 1764, is the oldest documented two-span masonry arch bridge in the United States. Named after Colonel John Choate, who supervised the construction, the bridge is located on South Main Street and spans the Ipswich River. Originally, the bridge measured 80 feet 6 inches long and 20 feet 6 inches wide. In 1838 it was widened to 35 feet 6 inches on the east side in order to accommodate another lane of traffic. The west side and the parapet of the bridge, along with the inscription to Colonel Choate, remained unchanged.

YearAdded:
2008
Image Credit: Public Domain (National Park Service) Image Caption: Choate Bridge Era_date_from: 1764
Carrollton Viaduct
Society: ASCE Main Category: Civil Sub Category: Bridges Era: 1800-1829 DateCreated: 1829 Gwynns Falls Baltimore State: MD Zip: Country: USA Website: http://www.asce.org/Project/Carrollton-Viaduct/ Creator: Wever, Caspar , Lloyd, James

The Carrollton Viaduct over Gwynn's Falls was the first masonry railroad viaduct constructed in the United States. This structure proved the feasibility of using a viaduct to transport railway vehicles across wide and deep valleys.

YearAdded:
1982
Image Credit: Public Domain (National Park Service) Image Caption: Carrollton Viaduct Era_date_from: 1829
Bunker Hill Covered Bridge
Society: ASCE Main Category: Civil Sub Category: Bridges Era: 1890-1899 DateCreated: 1894 Lyle Creek Catawba County State: NC Zip: Country: USA Website: http://www.asce.org/Project/Bunker-Hill-Covered-Bridge/ Creator: Ramsour, Andy, Haupt, Herman

In 1894, Catawba County, North Carolina commissioners asked local landowners to build and maintain an 85-foot-long bridge across Lyles Creek. The community hired Andy L. Ramsour, who served as keeper of the Horseford covered bridge over the Catawba River in Hickory, North Carolina.

YearAdded:
2001
Image Credit: Public Domain (National Park Service) Image Caption: Bunker Hill Covered Bridge Era_date_from: 1894
Canton Viaduct
Society: ASCE Main Category: Civil Sub Category: Bridges Era: 1830-1839 DateCreated: 1835 Canton State: MA Zip: Country: USA Website: http://www.asce.org/Project/Canton-Viaduct/ Creator: McNeill, William Gibbs , Whistler, George Washington

For more than 174 years, the Canton Viaduct has stood as a dominating structure on the New England landscape. When completed in 1835, the slightly curved, granite masonry bridge - 615 feet long, 70 feet high, and 22 feet wide - carried a single track of the Boston and Providence Railroad, providing a critical link in the establishment of rail service between Boston and New York. In 1860, a second track was added. With few major alterations, the viaduct has continued to provide safe rail transportation to heavier and faster loads throughout the 20th century.

YearAdded:
1998
Image Credit: Public Domain (Author's Choice) Image Caption: Canton Viaduct Era_date_from: 1835
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