The Hoover Mason Trestle is an elevated High Line-style rail park running parallel to Bethlehem, PA's SteelStacks. Opened in June 2015, the first phase of the trestle's development is four stories high and a half mile long, running from the visitor's center to the Gas Blowing Engine House, with a set of stairs and an elevator at each end. Along the path there are benches, native plants and signage with historical notes describing the former workers' lives and working conditions at Bethlehem Steel. Bethlehem Redevelopment Authority is the developer of the project, which cost approximately $15 million.
