Sydney Harbour railway electricity tunnel
Sydney Harbour railway electricity tunnel, Heritage tunnel under Sydney Harbour, Australia
The railway electricity tunnel stretches beneath Sydney Harbour between Birchgrove and Greenwich, carrying essential power cables for transportation systems.
Constructed from 1913 to 1926, this tunnel became the first completed passage under Sydney Harbour, replacing vulnerable submarine cables damaged by ships.
The tunnel represents a milestone in Australian engineering, demonstrating early 20th-century infrastructure development for public transportation needs.
The underground structure contains specialized racks holding high-tension wires that supply electric power to railways and trams across Sydney's transportation network.
Engineers faced substantial flooding challenges during construction, requiring innovative techniques like cement pumping and bulkhead installation to manage water infiltration.
Location: New South Wales
GPS coordinates: -33.84480,151.18720
Latest update: March 26, 2025 22:24
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