Rimutaka Incline Rimutaka Incline The Rimutaka Incline was a , gauge railway line on an average grade of 1-in-15 using the Fell system between Summit and Cross Creek stations on the original Wairarapa Line in the Wairarapa district of New Zealand. The term "Rimutaka Incline" is sometimes used incorrectly to refer to other parts or all of the closed and deviated section of the Wairarapa Line between Upper Hutt and Speedy’s Crossing, near Featherston. The incline formation is now part of the Remutaka Rail Trail. The construction of a railway from Wellington to Masterton was authorised in the Railways Act passed on
Tunnel Railway Romney, Hythe and Dymchurch Railway. As the new railway would not be carrying heavy loads and would be travelling only a short distance, it was built as a narrow gauge railway, with a track gauge of . This allowed the new branch tunnel to be built to far smaller dimensions than the existing tunnel, at just high and wide. Although a cable haulage system had initially been considered, Ramsgate Olympia decided early in the line's planning to electrify the line. A third rail system was rejected due to concerns for the safety of the large numbers of children expected to