Rimutaka Incline to bypass formation land that is now in private ownership. The original route from Upper Hutt to the Mangaroa valley is not included in the trust’s plans. Work on the project is currently at stage one, with the acquisition of rolling stock for restoration, fencing, track laying in the yard, and the construction of a rail vehicle shed. 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
Rimutaka Tunnel cutting for the new formation completed and the remainder of the track laid. On Thursday, 3 November, the new line was opened and two special trains travelled from Wellington to Speedy’s Crossing to the inauguration ceremony. The deviation's ruling grade is 1 in 70, compensated for curvature. The tightest curve is 400 metres (20 chain) radius. The tunnel rises at 1 in 400 from the western portal to the highest point on the deviation, roughly halfway through the tunnel, and then descends to the eastern portal at 1 in 180. It has an internal height of 5.18 metres (17 ft)