Barraca Peña Bridge, Railway and bascule bridge in La Boca district, Buenos Aires, Argentina.

Barraca Peña Bridge is a steel railway crossing that spans the Riachuelo River, linking Buenos Aires with Avellaneda. The structure stretches approximately 88 meters and was designed specifically to accommodate train traffic between the two cities.

Built in 1913 by the Sud Railway Company, this crossing replaced an earlier structure positioned about 100 meters upstream. The project was part of expanding rail infrastructure in the region during the early 20th century.

The bridge takes its name from the Barraca Peña, a warehouse built in 1774 by the Galician businessman Francisco de la Peña y Fernández. The name passed to the old Buenos Aires al Puerto de la Ensenada railway station beside it, and from the station to the bridge. The station stood on the line whose tracks ran along Avenida Don Pedro de Mendoza by the Riachuelo.

The bridge stays raised most of the time to allow ships to pass through the Riachuelo, lowering only when cargo trains need to cross. Visitors should keep in mind that crossing times vary depending on river and rail traffic schedules.

The bridge's abutments and piers are brick masonry founded on cylindrical caissons 4 m in diameter and 0.60 m thick, sunk to depths between 24.50 m and 26.60 m below the Riachuelo datum and filled with concrete. The main Scherzer span measures 28.50 m, within a total 88.20 m between abutments.