Chords Bridge is a cantilever spar cable-stayed bridge at the entrance to Jerusalem. When the Red Line of the Jerusalem Light Rail begins service on April 7, 2011, the bridge will be used by trams running from outlying Jerusalem neighborhoods to the center of the city. Incorporated in the structure is a glass-sided pedestrian bridge enabling pedestrians to cross from Kiryat Moshe to the Jerusalem Central Bus Station. A striking feature of the bridge is a single 119-metre high mast supported by 66 steel cables constituting the tallest structure in Jerusalem. While this is Calatrava's 40th bridge, it is the first he has designed to carry both train and pedestrian traffic.