Portage Viaduct, Railway bridge in Livingston County, United States.
The Portage Viaduct spans 820 feet across the Genesee River, featuring a 118-foot main span and metal truss construction methods from the 19th century.
The original wooden bridge opened in 1852, burned in 1875, and was replaced by an iron structure in just 53 days that same year.
The bridge became part of Letchworth State Park's landscape and earned recognition in the National Register of Historic Places for its engineering design.
The structure carried freight trains at restricted speeds of 10 mph with weight limits 13,000 pounds below standard railway requirements of 286,000 pounds.
The demolition in 2018 made way for a new 963-foot bridge with a spandrel-braced arch design, which engineers consider rare in modern railway construction.
Location: Livingston County
Inception: July 1, 1851
Official opening: August 14, 1852
GPS coordinates: 42.57778,-78.04944
Latest update: March 14, 2025 12:48
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