Rimutaka Tunnel fire suppression equipment, following the Pike River Mine disaster enquiry. Initially New Zealand DC class locomotives were used for the Wairarapa Connection, then from 2015 the DFB version of the New Zealand DF class locomotive (1979). The tunnel is used for freight from the Wairarapa to Wellington, notably logs from local pine forests and wood products from the Juken New Zealand Ltd timber mill at Waingawa, just south of Masterton. Rimutaka Tunnel The Rimutaka Tunnel (officially Tunnel 2, Wairarapa Line) is a railway tunnel through New Zealand's Remutaka Range, between Maymorn, near Upper Hutt, and Featherston, on the Wairarapa Line.
Otford railway tunnel 8 original tunnels on the Illawarra line from Waterfall to Clifton. The Otford Railway Tunnel, the seventh after Waterfall, was the final major engineering project which permitted the linking up of the northern part of the Illawarra Line to the isolated southern part in 1888. The Otford Railway Tunnel opened on 3 October 1888. The single line connection was made at (old) Stanwell Park Station (now bypassed by the 1915 Stanwell Park Deviation). The tunnel was built of brick arched form and when built was the largest and steepest (5,985 feet long - 1824m - and 1 in 40 gradient)