First Street Bridge (Napa, California)
The First Street Bridge in Napa, California brings 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 ; the center span is and the two side spans are each. It is wide and carries a two-lane roadway.
It 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.
