Journal of the Association of Engineering Societies . ut false work, and all did good service for many years. The Costigan Brook bridge, 50-foot span, near Bangor, Me.,on the Maine Central Railroad, was in use fifteen years, or until1883. This was the first one of the lot erected, and the only one ofthe iron bridges having the solid levers. The Olamon bridge, in Maine, Fig. 2, on the same railroadline, 75-foot span, was in use eighteen years, or until 1886, atwhich time Mr. J. P. Snow made a report on it, suggesting changes-which might possibly prolong its life, but it was decided to replaceit


Journal of the Association of Engineering Societies . ut false work, and all did good service for many years. The Costigan Brook bridge, 50-foot span, near Bangor, Me.,on the Maine Central Railroad, was in use fifteen years, or until1883. This was the first one of the lot erected, and the only one ofthe iron bridges having the solid levers. The Olamon bridge, in Maine, Fig. 2, on the same railroadline, 75-foot span, was in use eighteen years, or until 1886, atwhich time Mr. J. P. Snow made a report on it, suggesting changes-which might possibly prolong its life, but it was decided to replaceit by a new bridge. The Maguagadavic bridge, Fig. 3, 104-foot span, was on theconnecting railroad line in New Brunswick. How long it remainedin use I have not learned. Mr. Job Abbott, member of the Ameri-can Society of Civil Engineers, during a trip in New Brunswick,saw this strange bridge, took measurements and had drawingsmade, from which an illustrated article was prepared and publishedin the Engineering Record of July 27, 1901. Mr. Abbott supposed. Fig. 5. Bridge over Assaeet River, West Concord, Mass.


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Keywords: ., bookcentury1800, bookdecade1880, booksubjectenginee, bookyear1881