The Puente de Trujillo Alto is a Pennsylvania through truss bridge built during 1939–1941 in Puerto Rico in the Trujillo Alto municipality of Puerto Rico.

[4] The supporting structures and bridge were built by Robert Prann, an engineer who established private practice in Puerto Rico, with steel components manufactured by U.S.

[2] Crossing 70 feet (21 m) above, it spans the Río Grande de Loíza, the largest river by volume in Puerto Rico.

[2] A four-lane concrete bridge was built adjacently during 1983-85 as a replacement, with the historic bridge being slated for demolition, but local protests led to its being kept.

This article about a property in Puerto Rico on the National Register of Historic Places is a stub.