Mangaroa railway station war. After the war the depot was a disposal site for surplus stores until RNZAF use ceased in July 1949, at which time it is assumed that the site was transferred to the NZ Army for their use. Prior to the construction of the Rimutaka Tunnel, several proposals for a tunnel under the Rimutaka Ranges to bypass the Incline section involved tunnels with a western portal to the north-east of Mangaroa station. In 1898 a survey was completed for a tunnel between Mangaroa and Cross Creek. The idea received a great deal of attention, but ultimately went nowhere as such
Sapperton Railway Tunnel Sapperton Railway Tunnel The Sapperton Railway Tunnel, named after the nearby village of Sapperton (near Cirencester, Gloucestershire) carries the Golden Valley Line from Stroud to Swindon through the Cotswold escarpment. It was begun by the Cheltenham and Great Western Union railway in 1839 and taken over by the Great Western Railway in 1843, being completed in 1845. There are actually two tunnels, the main one at 1 mile 104 yards (1704m) in length, and separated by a short gap, a second at just 353 yards (323m). The initial plans for the tunnel, dating from 1835, were unusual in that it