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.
Collection consists of postcards on numerous subjects.
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.
The collection relates to covered bridges in America and Europe. It includes hundreds of slides (with index) of photographs of covered bridges; an album of prints of photographs of covered bridges in Germany, Switzerland and Austria; books and pamphlets, both national and regional, about covered bridges; newsletters from covered bridge organization...
A portfolio of stereographic inkjet photoprints, including views of American bridges, such as the Brooklyn Bridge, roads and highways, Hoover Dam, views taken from the World Trade Center, New York, and one image of Tokyo.
The collection documents Mrs. Rudell's research on covered bridges, mostly in the United States, but also including some in Europe and Canada.
Sixty-six pages from a photograph album compiled by an anonymous photographer, documenting the Philadelphia-Camden or Delaware River Bridge, now called the Benjamin Franklin Bridge.
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...
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.
Collection documents the work of the John A. Roebling's Sons Company, builders of bridges. The materials consist primarily of photograph albums documenting some of the bridges, tramways, ski lifts and chair lifts that Roebling's Sons Company was involved with. The documentation also includes specifications, patents, and reference materials about the engineering process of building bridges and bridges in general.