C937 breakthrough coming

Contract 937 is for the construction of Fort Canning station and tunnels to Chinatown and Bencoolen stations. Contractor GS E&C is eagerly awaiting the breakthrough of their machine boring the Bukit Panjang-bound tunnel towards Chinatown tomorrow. The reception shaft located next to the subordinate courts will receive the machine that bored underneath the Singapore River riverbed and forms the lower of the two tunnels that will eventually connect the stage 3 station to Chinatown interchange. In order to pass through a tight corridor, constrained by the Central mall and Central Expressway (CTE), the tunnels have to stack - running one on top of the other. The typical construction sequence is to bore the lower tunnel to reduce the amount of movement encountered subsequently. This lessens the amount of stress that the completed tunnel is subjected to. We look forward to bringing you more details once the breakthrough is accomplished tomorrow.