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| Service: | Feasibility study for NATM alternative construction, design safety checks, specialist NATM consultant for construction
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| Estimated cost: | Commencement: | December 29, 1992
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Completion date: | December 29, 1994
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| Location: | Brighton |
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| Technical data: | Two road tunnels, dual carriageway, length of 1,280 ft (390 m) each. |
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| Geology description: | Upper Cretaceous Chalk |
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| Bid cost: | Final cost: | $10,000
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