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Big Walker Tunnel - Rehabilitation
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| Service: | Rehabilitation design services
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| Estimated cost: | Commencement: | February 22, 2001
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Completion date: | October 17, 2001
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| Location: | Richmond, VA United States |
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| Technical data: | 2 two-lane highway tunnels constructed in 1971. Length: 4229 ft (1289 m) each; cross section: 907 sqft (84 m²). Design of remedial waterproofing and diversion system installed in air ducts and on vertical walls. Project focused on minimizing vehicular flow disruptions and lane closures. |
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| Geology description: | Brown Shale |
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| Bid cost: | Final cost: | $7,500,000
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