City Rail Link

City Rail Link
Overview
StatusUnder construction
Owner
LocaleCentral Auckland, New Zealand
Coordinates36°50′58.81″S 174°45′48.56″E / 36.8496694°S 174.7634889°E / -36.8496694; 174.7634889
Termini
Connecting lines
Stations4
Websitecityraillink.co.nz
Service
TypeCommuter rail
SystemAuckland Transport Urban rail
Operator(s)Auckland One Rail
Rolling stockAM class
History
Commenced2016 (Preliminary works)
Planned opening2026
Technical
Line length3.5 km (2.2 mi)
Number of tracks2
CharacterUnderground
Track gauge1,067 mm (3 ft 6 in)
ElectrificationOverhead line, 25 kV 50 Hz AC
Highest elevation70 metres (230 ft) above relative to Waitematā Station
Maximum incline3.5%
Route map

Bold stations are City Rail Link stations
Maungawhau
Karanga-a-Hape
Te Waihorotiu
Waitematā
Grafton
Parnell
Western Line
Newmarket

The City Rail Link (CRL) is a 3.5-kilometre-long (2.2 mi) double-track rail tunnel underneath Auckland's city centre, between Waitematā and Maungawhau railway stations.

Planned since 2013, construction began in 2018 and included two underground stations serving the city centre: Te Waihorotiu near Aotea Square and Karanga-a-Hape near Karangahape Road. Waitematā Station was converted from a terminus station into a through station, and Mount Eden station was replaced by Maungawhau Station, a station with four platforms to serve as an interchange between the CRL line and the Western Line.

The CRL is an adapted version of previous proposals to improve rail access to Auckland's city centre with the first proposals dating back to the 1920s. The increase in rail patronage in Auckland during the early 21st century, particularly after the opening of Britomart Transport Centre in 2003, led to renewed interest in the scheme. The 2012 Auckland Spatial Plan highlighted the CRL as the most important transport investment for Auckland and the project has enjoyed strong public support. Its planning and funding have also been the subject of controversy.

In June 2013, the central government announced its support for the project with a construction commencement date of 2020, four years later than Auckland Council's preferred start date of 2016. Prime Minister John Key announced in January 2016 that central government funding for the project had been confirmed, allowing Auckland Council to start construction of the main works from 2018, with central funds guaranteed to flow from 2020.

Preliminary stages of construction, including the relocation of stormwater infrastructure and tunnelling in the vicinity of the Commercial Bay redevelopment, began in 2016. Contracts for tunnel boring and construction of the CRL stations were awarded in July 2019, with major works beginning soon after.

Test trains commenced on 13 February 2025. The City Rail Link is scheduled to open for passenger travel in the second half of 2026.