Chapter
Jun 20, 2012
The Development and Use of Karst Maps in the Location of Highways in East Tennessee
Publication: Sinkholes and the Engineering and Environmental Impacts of Karst
Abstract
The Geotechnical Engineering Section of the Tennessee Department of Transportation developed karst maps for use in planning and locating new highway corridors in East Tennessee. Using existing 7.5 minute topographic quadrangle maps with 6 meter (20 foot) contour intervals, areas of high concentrations of sinkhole development can be identified in relation to proposed highway corridors. A total of six karst geohazard maps showing areas of high concentrations of sinkholes and numerous caves were developed for certain roadway projects in East Tennessee. These include SR 475, I-140, and SR 71 in Knox County, SR 91-Extension in Carter County, and I-181 Welcome Center and SR 357 in Sullivan County. By using these karst maps, geologists and engineers have been able to better select corridor routes for future design and construction projects that can provide a more environmentally friendly alignment.
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Sinkholes and the Engineering and Environmental Impacts of Karst
Pages: 680 - 693
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© 2008 American Society of Civil Engineers.
History
Published online: Jun 20, 2012
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P.G.
Transportation Manager I, Geotechnical Engineering Section, Tennessee Department of Transportation, 7345 Region Lane, Knoxville, TN 37914. E-mail: [email protected]
Operations Specialist 2, Geotechnical Engineering Section, Tennessee Department of Transportation, 7345 Region Lane, Knoxville, TN 37914. E-mail: [email protected]
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