First Street Bridge (Napa, California)

The First Street Bridge in Napa, California carries First Street over the Napa River. It was built in 1914 and was listed on the National Register of Historic Places in 2004.

It is a reinforced concrete bridge with three spans. Its total length is 155 ft; the center span is 50 ft and the two side spans are each 35 ft. It is 61 ft wide and carries a two-lane roadway.

The bridge was designed by the engineering firm of Leonard and Day, whose senior partner, John B. Leonard "was perhaps the state's most important designer of concrete bridges in the first two decades of the last century."

It was built by contractor C. H. Gildersleeve.

It is structurally a concrete girder bridge although it has the picturesque appearance of a Luten arch bridge.