14 September 2022 - A view of the contract 886 work sites for both the main line & turn back tunnels. |
Contract 886 is for the construction of cut & cover (C&C) tunnels for Circle Line 6 at the Marina Bay area. This contract consists of 2 sections - the main line section and the turnback tunnel section. The tracks at Prince Edward Road (PER) station are in a stacked configuration, thus as they head eastwards to Marina Bay station, the tracks split into two directions. One set known as the main line tunnels, turns southwards to connect to the existing Marina Bay station while another set turns eastwards to end just before Shenton Way station on the Thomson-East Coast Line. This second set is known as the turn back tunnels and will serve to allow trains terminating at PER to reverse directions and commence their return journey at the correct level (as PER is of a stacked platform configuration, hence the tracks are on different levels).