Ten Tunnels Deviation 1910, Railway tunnel system in Lithgow, Australia
The Ten Tunnels Deviation extends 9.2 kilometers through the Main Western Line between Newnes Junction and Zig Zag stations in New South Wales.
New South Wales Government Railways constructed this tunnel system between 1908 and 1910 to replace the limiting Lithgow Zig Zag railway section.
The heritage-listed tunnels demonstrate early 20th-century engineering methods with ten passages ranging from 70 to 825 meters in length.
The railway grade improvement from 1 in 42 to 1 in 90 allows modern trains to transport heavier loads through the mountainous terrain.
The deviation features the deepest railway cutting in New South Wales at 61 meters and contains continuous concrete beds replacing conventional track sleepers.
Location: New South Wales
GPS coordinates: -33.49261,150.21839
Latest update: September 24, 2025 10:23
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