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Season 2 Episode
- Season 1 Trains in War
- Season 1 Steam Trains
- Season 1 The Atchison, Topeka & Santa Fe
- Season 1 Built for Speed
- Season 1 When Giants Roamed: The Golden Age of Steam
- Season 1 Trans Canadian Railway
- Season 1 The Wabash Cannonball
- Season 1 Model Railroads
- Season 1 Railway Marvels
- Season 1 Power & Speed: Diesel Locomotives
- Season 1 Great Train Robberies
- Season 1 Great Train Disasters
- Season 1 Stokin' the Fire: What Makes Trains Go
Trains Unlimited - Season 1 Episode 9 Railway Marvels
0.00 50 minutes The episode covered, stone arch bridges, some are still in service and outlasted iron bridges. The one arch Carrolton Viaduct (1829) is the oldest in the U.S., and the 8 arch Thomas Viaduct (1835) just west of Baltimore is the next oldest. The Rockville Bridge over the Susquehanna 1902 replaced earlier wooden (1849) and iron (1879) bridges. Tunkhannock Viaduct/Nicholson Bridge 2,300 feet length, 240 feet above the community of Nicholson, PA., built in 1915 was given as the ultimate example.
