Features a substantive history, bridge facts, and current data. Spans the Detroit river between the United States and Canada.

Designed by the architectural firm of McKim, Mead and White during the 1920s. Opened 1932. Located in Washington, the capital city of the United States of America.

Essay by Sean Vitousek discusses the building and social aspects of this Californian bridge.

Full text of this 1918 publication which contains a series of essays. Subjects include the Detroit-Superior high level bridge, and the early bridges of Cleveland.

Full text of the book written by Sara Ruth Watson and John R. Wolfs. Provides historic information on the most important bridges in Cuyahoga County.

History and restoration program drawings and notes. Located in New Hampshire and designed by Ithiel Town.

Features history of bridge building, notable builders, individual bridges classified by construction type, and preservation case studies.

Illustrated article from the Oregon Department of Transportation describes the history of this 1911 railway bridge.

Photographic catalog by Daniel Alward of historic iron and steel bridges mainly in Pennsylvania and Ohio.

Bridge information and history, statistics, and workings for these six bridges built between the years 1892 to 1902.

Timeline with construction notes of historic Rochester bridges. Also includes a selection of old postcard images.

Suspension bridge across the Hudson river. Features a range of current and historic data and photographs.

Article on the history of California bridges by Jill Livingston, published in the Society for Commercial Archeology Journal.

Essays and photographs of truss, suspension, and covered bridges.

Photographs and data of historic cast and wrought iron bridges, early steel bridges, and early stone and concrete bridges. Classified by state. From the University of Florida .

Photographs and data of covered, arch, and steel bridges.

Photographic gallery and basic data. Also includes covered bridges and related links.

Construction details and photographs of designated historic bridges. Classified by county.

Offers links to information and photographs of many of the state's historically significant bridges.

Photographs and data classified by type, location and status.

Features selected bridges divided into four broad types: covered, stone arch, metal truss, and concrete arch bridges.

Photographs and information on iron and steel truss bridges.

Provides a chronology, description and historical information. Spans the Allegheny river between Pittsburgh and Millvale. Built 1924. Requires Adobe Acrobat to view.

Article on the development inspired by Whipple's discovery of how to scientifically analyze the complicated framework.

Historical article from the University of Massachusetts. Features information on the ooriginal patent and annotated photographs of the surviving bridges.

Publication on the design and construction by Wilbur J. Watson. Reprinted from the Civil Engineering journal for November, 1932.

Photographs and data listed by County.

Text and photographs with a focus on the state's masonry arch, truss and reinforced concrete arch bridges.

Illustrated essay covers construction and costs. Spans the Mississippi river at St. Louis.

Photographic collection of the construction between 1931-1936. Held at the Bancroft Library, University of California.

Basic data and photographs of the Bayonne and Goethale bridges, and the Outerbridge crossing. Opened 1928 to 1930

Illustrated article on this Massachusetts cast iron bridge built in 1805 and dismantled in 1950.

Aims to save the 97-year-old Hojack Swing Bridge in Rochester, New York. News, images and related documents. Also a collection of illustrated articles about bridges worldwide.

Extract from the book written by Jeptha R. Simms in 1883. Covers the history of the early bridges.

Data and photographs from the Virginia Historic Structures Task Group. Categorized by county.

An account of the origin and history, written during its construction in 1878. Author Collins French.

Features a history of the department and illustrated histories of the Rip Van Winkle, Kingston-Rhinecliff, Mid-Hudson, Newburgh-Beacon, and Bear Mountain bridges.

Historical data of this steel through-truss bridge across the Mississippi river. Includes facsimile of the original handbill with facts and diagrams, and a gallery of construction photographs.

Tom Cook's illustrated history including sources and related links. Rebuilt in 1874 after fire had destroyed the original wooden structure. Located in the Genesee Valley, New York State.

Campaign to save this bridge in Columbia County which was built by the Phoenix Bridge Company in 1933.

Restoration project status, bridge facts, and a short history. Located in Maine.

Documentation study by the American Engineering Record (HAER), and the Oregon Department of Transportation. Features photographs, detailed drawings, and historic and descriptive data.

The only Fink Through-Truss bridge known to exist in the United States. Also includes links to a biography of Fink and to the bridge builders, Smith, Latrobe and Company.