McMillin Bridge

McMillin Bridge is a through truss concrete bridge with a unique configuration and is the only structure of its kind in the world. Designed for longer spans and heavier loads, its steel-reinforced concrete trusses eliminated the need for overhead lateral braces while accommodating sidewalks that pass through portals in the trusses. When completed in the fall of 1935, the 170-foot-long bridge was hailed as the longest reinforced concrete span in the United States, exclusive of arches. In 2015, it was bypassed by a new highway bridge and left standing as a monument to Washington State's transportation and engineering heritage. It is listed on the National Register of Historic Places, the Washington Heritage Register, and the Pierce County Register of Historic Places.

McMillin, Washington · United States