Puente de Trujillo Alto, historic bridge in Trujillo Alto, Puerto Rico
Puente de Trujillo Alto is a road bridge in Trujillo Alto, Puerto Rico, completed in 1941. It was constructed using the Pennsylvania through-truss design with steel beams forming triangular patterns and crosses the Río Grande de Loíza at a height of about 70 feet (21 meters) above the water.
The structure was built after a previous concrete bridge was destroyed by flooding in 1936 and was funded through the New Deal program. Construction was led by engineer Robert R. Prann, with steel components manufactured by U.S. Steel.
The best access is from the banks of the Río Grande de Loíza, where you can observe the steel structure from below. The historic bridge is today mainly accessible for walking and historical visits, while a modern neighboring bridge carries motor traffic.
The structure was originally the longest single-span bridge in Puerto Rico and was damaged by severe flooding in 1945 yet remained structurally intact. A community movement saved the bridge from demolition when a four-lane concrete bridge was built alongside it in 1984.
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