Tower Bridge bridge's upper walkways. The pedestrian walkways are above the river at high tide. The main bridge deck carries two lanes of road traffic between two low-level pedestrian walkways across both suspension spans and the opening bascule section of the bridge, with the walkways separated from the roadway by fences. The roadway passes through each of the two towers, whereas the low-level walkways pass around the outside of the towers. One of the chimneys on the bridge, which are often mistaken for lamp posts, connects up to an old fireplace in a guardroom of the Tower of London. It is long-disused.
Abrisham Bridge a tilted pylon on its north side. Regarding its tilted tower, it was the first of its kind in Tehran. The footpath is supported by 20 cables composed of 12 wires, asymmetrically distributed on the two sides. The length of the longest cable is about 53 meters, and the shortest is about 20 meters; the height of the pylon is about 40 meters; the greatest span of the bridge is about 132.85 meters; and the width of the whole bridge is about 10.5 meters. Abrisham Bridge Abrisham Bridge (, "Pol-e Abrišam"), literally the "Silk Bridge", is a cable-stayed bridge in