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Raurimu Spiral
Location of the Raurimu Spiral in the central North Island of New Zealand.
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The Raurimu Spiral is a single-track railway spiral, starting with a horseshoe curve, overcoming a 139-metre (456 ft) height difference, in the central North Island of New Zealand, on the North Island Main Trunk railway (NIMT) between Wellington and Auckland. It is a notable feat of civil engineering, having been called an "engineering masterpiece."[1] The Institute of Professional Engineers of New Zealand has designated the spiral as a significant engineering heritage site.[2]
- ^ Dearnaley, Mathew (9 August 2008). "Steel backbone an economic lifeline". The New Zealand Herald. Retrieved 4 November 2011.
- ^ IPENZ