North South MRT line

North South line
Yio Chu Kang is one of the oldest stations of the line.
Overview
Native name	Laluan MRT Utara Selatan 南北地铁线 வடக்கு தெற்கு எம்ஆர்டி வழி
Status	Operational Under planning (Brickland and Sungei Kadut)
Owner	Land Transport Authority
Termini	Jurong East Marina South Pier
Stations	27 (Operational) 2 (Under planning)
Service
Type	Rapid transit
System	Mass Rapid Transit (Singapore)
Services	1
Operator(s)	SMRT Trains (SMRT Corporation)
Depot(s)	Bishan Ulu Pandan
Rolling stock	C151 C651 C751B C151A C151B C151C R151
History
Opened	7 November 1987; 36 years ago (1987-11-07)
Technical
Line length	45 km (28 mi)
Character	Above ground (Jurong East - Ang Mo Kio) Surface level (Bishan) Underground (Braddell - Marina South Pier)
Track gauge	1,435 mm (4 ft 8 1⁄2 in) standard gauge
Electrification	750 V DC Third rail
Operating speed	limit of 80 km/h (50 mph)
Route map

The North South MRT line is the first Mass Rapid Transit (MRT) line in Singapore to be built. It is 45 km long with 27 stations, and it is being operated by SMRT Trains. It would usually take one hour to travel from one end of the MRT line to the other. This line is coloured red on the MRT Rail map.

This line joins the Central area of Singapore to the Northern and Southern areas of Singapore. To transfer to the East West MRT line, a commuter can transfer at Jurong East, Raffles Place or City Hall. Transferring to the North East MRT Line is done at Dhoby Ghaut with a linkway. Bishan MRT Station, Dhoby Ghaut MRT Station and Marina Bay MRT Station can transfer a commuter to the Circle MRT Line. Transfer to the Downtown line is provided at Newton MRT Station.

The first section of the north south line opened on 7 November 1987 between Toa Payoh and Yio Chu Kang. Afterwards, the section to Outram Park (now on the East West MRT line) opened. Following that, the rest of the line opened stage by stage.

The Woodlands Extension was planned to close the gap between Yishun and Choa Chu Kang. It consists of 6 stations, and opened on 10 February 1996.

A 1-kilometre extension of the line to Marina South Pier MRT Station was opened in 2014.

• 7 November 1987: Yio Chu Kang – Toa Payoh
• 12 December 1987: Toa Payoh – Raffles Place
• 20 December 1988: Yio Chu Kang – Yishun
• 4 November 1989: Raffles Place – Marina Bay
• 10 March 1990: Jurong East – Choa Chu Kang
• 10 February 1996: Yishun – Choa Chu Kang
• 23 November 2014: Marina Bay – Marina South Pier
• 2 November 2019: Canberra

On 7 October, services on the line was stopped between Ang Mo Kio and Marina South Pier around 6pm, after the tunnels between Bishan and Braddell flooded following heavy rain, and a fire was seen near Raffles Place. Services between Newton and Marina South Pier was resumed at around 9.30pm but the section between Newton and Ang Mo Kio remained closed overnight. It opened at 2pm the following day after staff and the SCDF worked overnight to clear the water from the tunnel. SMRT reported that a faulty water pump was the cause of the flooding. This was the worst train incident in SMRT's history.

v t e North–South Line
Legend
NS12  Canberra Yishun  NS13   NS11  Sembawang Khatib  NS14   NS10  Admiralty Seletar Expressway  TE2  Thomson–E.C. Line to Woodlands North ■  NS9  Woodlands Yio Chu Kang  NS15   NS8  Marsiling Ang Mo Kio  NS16  Bukit Timah Expressway ■ ← to Jurong Lake District to Aviation Park →  CR11  Bishan Depot  NS7  Kranji Kallang River ■ Circle Line  CC15  Sungei Kadut (future station) Bishan  NS17  Braddell  NS18   NS5  Yew Tee Toa Payoh  NS19  Kranji Expressway Novena  NS20   JS1  NS4  Choa Chu Kang ■ ← to Bukit Panjang to Expo →  DT11   BP1  Jurong Region Line to Boon Lay ■ Newton  NS21  Bukit Panjang LRT to Template:Lrt ■ Choa Chu Kang Avenue 1 Orchard  NS22  Brickland (future station)  TE14   NS3  Bukit Gombak Somerset  NS23  ■ ← to HarbourFront to Punggol →  NE6   NS2  Bukit Batok Dhoby Ghaut  NS24  CC1  Pan-Island Expressway Jurong Region Line to Tengah ■ ■ East–West Line to Pasir Ris East–West Line to Tuas Link ■ City Hall  NS25   EW13   JE5  EW24  NS1  Jurong East Singapore River Jurong Region Line to Pandan Reservoir ■ Raffles Place  EW14   NS26  Marina Bay  NS27  CE2  ■ Thomson–E.C. Line to Gardens by the Bay  TE20  Marina South Pier  NS28