Raurimu Spiral, New Zealand. Still very much in use.
Another way of gaining height, similar feat as the ZigZag Railway achieved.
Great piece of engineering skill when the New Zealand main trunk line was being first built .
The Main Trunk was completed in 1908.
Actually, I came across this Railway Forum list by chance, as I was searching to see if there was a book or DVD about great railway engineering
feats. Looks like either one might be of interest to many people.
AMC
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