Nicolas Avellaneda Lifting Bridge
From Graces Guide
The Nicolás Avellaneda lifting bridge was built in 1937. It crosses the Riachuelo River to connect Maciel Island with Buenos Aires City.
It allows the passage of vessels up to 21 m high when closed, and up to 43 m when open. High traffic volumes now use the new bridge over the Riachuelo. The main structure is in high-strength steel, and has two towers and a lifting span of 65m, and there are two approach viaducts. The lifting deck has two 230 ton counterweights supported by four chains, driven by two 55 HP electric motors. Construction work began in 1937 and the bridge was opened in 1940. The Engineer was Juan Agustín Valle and the architect Eduardo Rodríguez Videla.[1]
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