Kim Chuan Depot

Kim Chuan Depot (Chinese: 金泉车厂) is a rail depot for the Mass Rapid Transit system in Singapore. The depot cost S$297 million to construct and houses the trains for the Circle Line and upcoming Downtown Line. The depot is fully underground, reaching a depth of 24 m at some points. It provides stabling of the trains, maintenance and operational control of the line. The depot has a capacity for 77 trains and has an area of 100,000 m². The depot is located along Upper Paya Lebar Road and 2.1 million cubic metres of soil had to be excavated for its construction. An administration building with offices, a warehouse, a canteen and a 66 kilovolt substation is located above the depot. The remaining 3 hectares of land left empty will be used for light industrial use with buildings on it up to 9 storeys high.

Touted as the world's biggest underground depot, it officially opened on 4th March, 2009, employing 300 staff members.

This depot is operated by SMRT Trains and temporarily by SBS Transit since 22 December 2013 until Gali Batu Depot is ready to be used.