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Singapore LTA DTL3 C923A

Construction of tunnels between Tampines East and Upper Changi Stations
4,760 m Bored Tunnels
6.35m Diameter EPB Machine

Project: The Downtown Line Stage 3 C923A project include the construction of tunnels between Tampines East and Upper Changi Stations with a total length of 4.76km, a TBM launching shaft and eight cross passages. Two 6.35m diameter EPB machines were used to construct the bored tunnels. The contract value is S$91.13 million. 

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