London GB – Tower Bridge 01
Image by Daniel Mennerich
This photo shows the Tower Bridge, the bridge is 244 m in length with two towers each 65 m high, built on piers. The central span of 61 m between the towers is split into two equal bascules or leaves, which can be raised to an angle of 83 degrees to allow river traffic to pass. The bascules, weighing over 1000 tons each, are counterbalanced to minimize the force required and allow raising in five minutes.
The two side-spans are suspension bridges, each 82 m long, with the suspension rods anchored both at the abutments and through rods contained within the bridge’s upper walkways. The pedestrian walkways are 44 m above the river at high tide.
The bridge was officially opened on 30th June 1894 by The Prince of Wales (the future King Edward VII), and his wife, The Princess of Wales (Alexandra of Denmark).