The Silva Bridge is a Pratt pony truss bridge in Puerto Rico which was built in 1897. It was listed on the National Register of Historic Places in 1995 and on the

Puerto Rico Register of Historic Sites and Zones The Puerto Rico Register of Historic Sites and Zones (Spanish language, Spanish: ''Registro Nacional de Sitios y Zonas Históricas'') is a Government of Puerto Rico, Puerto Rican government program adopted by the state Puerto Rico Planning Board, P ...

in 2000. The Silva Bridge spans the

Guanajibo River The Guanajibo River ( es, Río Guanajibo) is a river that runs through Hormigueros Hormigueros (, ) is a town and municipality of Puerto Rico located in the western region of the island, northeast of Cabo Rojo; northwest of San Germán; and ...

, the boundary between Guanajibo barrio in

Hormigueros Hormigueros (, ) is a town and municipality of Puerto Rico located in the western region of the island, northeast of Cabo Rojo; northwest of San Germán; and south of Mayagüez. Hormigueros is spread over 5 barrios and Hormigueros Pueblo (th ...

and Guanajibo barrio in Cabo Rojo. It is on Highway 114 at kilometer 4. It was built in the year before the Spanish–American War, and was the site of conflict between Spanish forces and the Americans, who invaded Puerto Rico on July 25, 1898. Sniper fire held up American forces under Brigadier General Theodore Schwan who were seeking to go west across the bridge on August 10, 1898, delaying them by about two hours. The snipers were Spanish regulars and Puerto Rican volunteers. It is Bridge No. 71 mentioned in a review of historic bridges in Puerto Rico. It is a

Pratt pony truss A truss bridge is a bridge whose load-bearing superstructure is composed of a truss, a structure of connected elements, usually forming triangular units. The connected elements (typically straight) may be stressed from tension, compression, or ...

bridge built over the River in 1897.

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* Cabo Rojo, Puerto Rico Hormigueros, Puerto Rico Road bridges on the National Register of Historic Places in Puerto Rico Bridges completed in 1897 1897 establishments in Puerto Rico Spanish–American War Pony truss bridges Pratt truss bridges {{PuertoRico-NRHP-stub