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| Service: | NATM Consultant
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| Estimated cost: | $250,000
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Commencement: | January 01, 1991
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Completion date: | |
| Location: | Ottawa, ON Canada |
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| Technical data: | 2 single lane bus tunnels connecting four underground bus stations, 4200 m length approx. each. |
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| Geology description: | Sand, sensitive silty Clay, Shale and Limestone. |
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