Tunnel
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PE101A - Fort Canning Tunnel -
T212 - Upper Thomson Station and Tunnels for Thomson Line -
C932 - Mattar Station and Associated Tunnels for MRT Downtown Line Stage 3 -
C928 - Bedok North Station and Associated Tunnels for MRT Downtown Line Stage 3 -
Access Shafts and Start-up Galleries of Phase 1 Jurong Rock Cavern