 Extensive sidings at Petone, Naenae (where the goods shed remains, in non-rail use), Taita (Unilever) and Trentham (Army) have been closed and removed.Other former sidings include one used by oil companies between Renall St and Masterton stations; disused sidings at Mauriceville and Eketahuna; the Ngauranga Industrial Siding to an abattoir in the Ngauranga Gorge; and a siding to the Featherston Military Camp north of Featherston during World War I.Nine tunnels have been constructed on the various routes of the Wairarapa Line.