Parnell Tunnel

The Parnell Tunnel is a railway tunnel under Parnell, Auckland, New Zealand. It is 344.5 metres (1, 130 ft) long, and is on the Newmarket Line. The tunnel allows the Western and Southern lines coming from Newmarket Train Station to Waitematā to pass under the Parnell Ridge before dropping to harbour level. There are two Parnell Tunnels, an older now unused single-track tunnel and a newer double-track tunnel which superseded it. The older tunnel was closed off and has not been in use for most of the last century. The older tunnel, originally intended in part to provide a connection to Drury for the New Zealand Wars, has been lauded as having enabled the first public railway line in Auckland, and opening the city up to the wider New Zealand.

Tunnel data from Wikidata (CC0). Summary from Wikipedia (CC BY-SA).