Narrows Bridge (Perth) railway bridge deck was made from nine steel girders each weighing up to and up to long. These girders were built in Kwinana, brought to the site by road and lowered into position with a crane. Narrows Bridge (Perth) The Narrows Bridge is a freeway and railway crossing of the Swan River in Perth, Western Australia. Made up of two road bridges and a railway bridge located over a section of water known as "The Narrows", located between Mill Point and Point Lewis, it connects the Mitchell and Kwinana Freeways, linking the city's northern and southern suburbs. The original road
Verrazzano-Narrows Bridge and Throgs Neck Bridges would be the final major bridges in New York City for the time being, since they would complete the city's expressway system. Although the bridge was constructed with only one 6-lane roadway, Ammann had provided extra trusses to support a potential second roadway underneath the main deck. These trusses, which were used to strengthen the bridge, were a design alteration that was added to many bridges in the aftermath of the Tacoma Narrows Bridge collapse in 1940. The Verrazzano-Narrows Bridge became so popular among motorists that in March 1969, the TBTA decided to erect the lower