The Bridges Nhdot Project Website in Concord, NH celebrates the construction of new bridges to replace the historic Bearcamp River Bridges, which were built in 1955 and are eligible for the National Register of Historic Places due to their distinct engineering characteristics.
Featuring unique design elements such as a double batter pile design for added stability, a combined open-grid shoulder and sidewalk system, and a combined simple and continuous I-beam system, these bridges showcase mid-20th century steel deck bridge design and highlight the innovative engineering techniques of the time.
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