Lyttelton road tunnel

The Lyttelton road tunnel runs through the Port Hills to connect the New Zealand city of Christchurch and its seaport, Lyttelton. It opened in 1964[vague] and carries just over 10,000 vehicles per day as part of State Highway 74.[1][not verified in body][obsolete source]

Lyttelton road tunnel
The Lyttelton tunnel portal at the southern end
Coordinates43.5942°S 172.7116°E / -43.5942; 172.7116
Route Christchurch–Lyttelton Motorway
Opened27 February 1964
OwnerNZ Transport Agency
Traffic10,755 (2010)
Length1,970 metres (6,460 ft)
No. of lanestwo
Operating speed50  km/h

At 1,970 metres (6,460 ft), it was the longest road tunnel in New Zealand from its opening until 2 July 2017,[1][failed verification] when it was superseded by the Waterview Tunnels.[not verified in body]

While the tunnel itself was not damaged due to the February 2011 Christchurch earthquake, the Heathcote tunnel canopy was destroyed. The nearby Tunnel Control Building — a Category I heritage building – suffered significant damage and was closed, before finally being demolished in 2013. Construction of a new control building was completed in 2014.[2][full citation needed]