Home»Tunkhannock Viaduct, PA

Tunkhannock Creek Viaduct (also known as the Nicholson Bridge and the Tunkhannock Viaduct) is a concrete deck arch bridge that spans the Tunkhannock Creek in Nicholson, Pennsylvania. Measuring 2,375 feet long and towering 240 feet when measured from the creek bed, it was the largest concrete structure in the world when completed in 1915, and still merited "the title of largest concrete bridge in America, if not the world" 50 years later. Built by the Delaware, Lackawanna and Western Railroad, the bridge is owned today by Norfolk Southern Railway and is used daily for regular through freight service.