The Queensboro Bridge is a cantilever bridge over the East River in New York City. The bridge is also named the 59th Street Bridge because, it's end in Manhattan is between 59th and 60th streets. It was finished in 1909. The Queensboro Bridge connects Midtown Manhattan with Long Island City in the borough of Queens. It goes over Roosevelt Island. The bridge is long. The bridge was renamed after New York City mayor Ed Koch in 2011. Its official name is now the Ed Koch Queensboro Bridge. 