Tunkhannock Viaduct

<br>This reinforced concrete structure was the largest of its kind ever built when it went into service in 1915 on the Delaware, Lackawanna & Western Railroad. The bridge, 2,375 feet long and rising 240 feet above Tunkhannock Creek, was the focal point of a 39.6 mile relocation between Clarks Summit and Hallstead. The novelist Theodore Dreiser called this viaduct "one of the true wonders of the world."