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DTSS T05
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| Service: | Design and Construction Supervision of Shafts and Access Tunnels
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| Estimated cost: | $75,800,000
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Commencement: | December 01, 1998
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Completion date: | |
| Location: | Singapore
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| Technical data: | Section T02 comprises 7716 of 6m inner diameter sewerage tunnel, 6 permanent access shafts and 3 lateral access tunnels connecting the access shafts with the sewerage |
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| Geology description: | Light gray to medium gray slightly to moderately weathered Petersburg Granite (quartz, hornblende, biotite); dark grayish, slicken-sided Amphibolite layers (biotite, hornblende, feldspar); |
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