Hoover-Mason Trestle, Elevated park and railway bridge in Bethlehem, United States.
The Hoover-Mason Trestle is an elevated walkway built over the former steel mill grounds, offering views of five preserved blast furnaces from above. The structure sits among machinery, pipes, and industrial equipment that show how the steelworks operated.
Built in 1905, this narrow gauge railway transported raw materials from the Lehigh River to the steel mill's blast furnaces. The transport system was critical to steel production throughout the 20th century.
The site reflects the steel industry that once shaped life in this city and region. Walking the elevated path, you encounter reminders of the work and communities that depended on this production.
Access the walkway through stairs or an elevator at the Bethlehem Visitor Center, where the route is well marked. The best time to walk is in the morning or mid-afternoon, when sunlight shows the industrial surroundings most clearly.
The steel mill produced material for the Golden Gate Bridge and numerous World War II naval vessels. The trestle still displays the railway infrastructure that moved these raw materials across the mill.
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