Photographs Plowden took of bridges, aqueducts and viaducts all over the United States and a few in Canada. The photographs are of various types of bridges: truss, suspension, covered. Some photographs feature close-up details of architectural elements, such as arches, chains, towers and ornamentation.
The collection consists of two photograph albums documenting two Canadian drawbridges. One album, covering the years 1889 to 1911, documents the Coteau Bridge in Quebec. The Coteau Bridge crosses the St. Lawrence River in Quebec. It includes images of the bridge, the construction crew and machinery. The other album, covering the years 1873 to 190...
The collection documents the construction of the first and second Quebec Bridges over the St. Lawrence River. Construction on the first bridge began in 1900 and the bridge collapsed before completion in 1907. Construction on the second Quebec Bridge, which is the longest cantilever bridge in the world, was completed in 1917.
The collection documents Mrs. Rudell's research on covered bridges, mostly in the United States, but also including some in Europe and Canada.
Correspondence, bridge construction and condition reports, financial records, and other materials created by or concerning the Niagara Falls International Bridge Company and the Niagara Falls Suspension Bridge Company (NFSB). The main focus of the collection is company administration and the daily operation of a series of bridges connecting the U.S. and Canada over the Niagara Gorge.
The collection is comprised of the results of Shanks's research on covered bridges, mostly in America but also covered bridges in Canada and Switzerland. Included are albums containing color photographs of covered bridges, slides of covered bridges, postcards depicting covered bridges; maps, and guidebooks; newsletters, magazines, and newspaper clippings on the subject of covered bridges.
Business papers, patents, and photographs of bridges documenting the work of Holton Duncan Robinson, world-renowned engineer in suspension bridge cable design and construction.
Manuscripts, correspondence, business records, newspaper clippings and scrapbooks documenting the career of Henry Grattan Tyrrell, an early-twentieth-century civil engineer and bridge builder who was also a prolific self-published author of hundreds of journal articles and several books. Subjects include aesthetic bridge design, history of bridges, design of movable bridges, and the economical design of factories, shops, and mill buildings.
The collection documents Llewellyn Nathaniel Edwards, a civil engineer and bridge builder.
The collection consists of photoprints documenting the construction of the Northern Pacific Railway.