The Boca Road Bridge is an abandoned wooden deck truss span located on the Truckee River near the former site of Boca siding. The span was likely constructed during the 1910s and 1920s prior to US Route 40 being built through the Truckee River Canyon. Boca siding was plotted during the 1860s on the Dutch Flat & Donner Lake Road during the construction of the Central Pacific Railroad. Boca siding was demolished in portions from the late 1920s through 1939 to make way for the site of Boca Dam.
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Someone from a Tahoe and Nevada history group had an answer for when the Boca Road Bridge was built. The abandoned span seen today was contracted by Nevada County in 1925 and was completed in 1926.