Narrows Bridge (Perth) 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 bridge was opened in 1959 and was the largest precast prestressed concrete bridge in the world. Construction of the northern interchange for this bridge necessitated the reclamation of a large amount of land from the river.
Tacoma Narrows Bridge (1950) new design was then estimated at $7 million (US$ in present terms). Since the original bridge became a major asset in the short time it was in service, the U.S. Navy lobbied heavily for a combination highway/railroad span across the Narrows to replace Gertie, and proposed a steel-cantilever-type bridge over a suspension span. However, the extra steel needed to construct such a structure across the Narrows would have added an extra $8.5 million (US$ in present terms) to the construction cost, ruling out any possibility of such a structure ever being built. Furthermore, the proposed design needed new testing. A