Double-Span Metal Pratt Truss Bridge
Double-Span Metal Pratt Truss Bridge, Road bridge in Keeseville, United States.
The Double-Span Metal Pratt Truss Bridge extends 214 feet across the Ausable River with two 107-foot spans supported by a central pier.
Murray Dougal & Company constructed this metal bridge in 1877 to replace a wooden structure that collapsed under snow and wind in 1875.
The bridge represents an important example of the catalogue bridge construction methods used throughout the United States between 1875 and 1910.
The structure carries Liberty Street over the Ausable River between Ausable Street and River Street, though it has been closed since 2008.
This structure stands as the oldest existing metal Pratt truss bridge in New York State and holds recognition as a Historic Civil Engineering Landmark.
Location: New York
GPS coordinates: 44.50028,-73.48528
Latest update: November 28, 2025 14:29
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