Abstract: Cast and wrought-iron bridges across the Enlarged Erie Canal built by Squire Whipple, or to his 1841 patent, were commonplace in the period of the early 1840s up to the opening of the New York State Barge Canal in the ...

Abstract: The rehabilitation of a Moseley wrought-iron arch is described along with a history of the development of the arch and its builder. The bridge, originally built in 1864 over the North Canal in Lawrence, Mass., is the last ...

Abstract: Structural engineering as a profession dates from the second quarter of the 19th century. This paper traces the careers of Steven H. Long and Squire Whipple, who by their writings and construction of bridges between 1830 ...