First St. across the Napa R, Napa, California. County/parish: Napa.
Added to the National Register of Historic Places August 05, 2004. NRIS 04000774.
Part of Highway Bridges of California MPS (NRIS 64500890).
1 contributing structure.Also known as:
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 feet (47 m); the center span is 50 feet (15 m) and the two side spans are each 35 feet (11 m). It is 61 feet (19 m) 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.
(read more...)National Park Service documentation: https://catalog.archives.gov/id/123857686