Report of John A. Roebling, Civil Engineer, to the presidents and directors of the Niagara Falls suspension and Niagara Falls International Bridge Companies.
Trenton, N.J. Murphy & Bechtel, printers, opposite the City Hall, 1860. First Edition. Softcover. Very Good. Item #49351
8vo. 20 pp. Original printed wrappers, lightly soiled along the front cover edges; internally clean and in excellent condition overall. Roebling, noted for his pioneering wire rope suspension bridges-including the Niagara Bridge-presents here a detailed examination of the structure after several years of use. Built and opened for rail traffic in March 1855, the bridge accommodated an average of 45 train trips per day. Roebling discusses the wear observed in certain components and recommends specific repairs and replacements, including new rails, restrictions on train speeds, and attention to the condition of wooden elements. He provides extensive technical detail and reassures the company that the bridge's main cables and structural integrity remain sound.
Price (CAD): $300.00