Pierce County, US
The Purdy Bridge is a continuous reinforced concrete box girder bridge that spans 550 feet (170 m), with a central span of 190 feet (58 m), between Henderson Bay and Burley Lagoon. The bridge connects Purdy, Washington with the Purdy Sand Spit Park and Wauna, Washington. Purdy Bridge was completed o
n September 29, 1937, at a cost of $62,000, from a design by Homer M. Hadley. It was the first bridge in the United States to utilize a reinforced-concrete box girder design and it was the longest continuous box girder bridge in the United States at the time. The bridge was added to the National Register of Historic Places in 1982.
Listen to the audio guide for Purdy Bridge Free on WIP — starts by itself when you arrive, even with the screen off