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| | Tunnels - Projects - NDT Corporation |
 | | Radar data identify areas of water concentration at the back of or within the liner, voided and grouted areas as well as an assessment of reinforcing spacing and cover. |
 | | Atlantic Avenue Subway Tunnel - MTA Station - New York, NY Baltimore MTA Tunnel Metal Liner Thickness - Baltimore, MD WMATA "G" Line Subway Tunnel - Washington, DC Dewey Square Vehicle Tunnel - Boston, MA 19-Mile Brick-Lined Tunnel New Croton Aqueduct - New Croton, NY |
 | | Locate Stone-Lined Tunnel Millbury Conduit - Millbury, MA Elkwood Wood-Lined Vehicle Tunnel - Elkwood, OR Allegheny Brick-Lined Rail Tunnel - Allegheny, PA Wise 7 and 8 Water Conveyance Tunnel - Wise, CA MBTA Concrete Subway Transit Tunnel - MA Note: |
| www.ndtcorporation.com /Tunnel.htm (176 words) |
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