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Abandoned Underground Mines

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Abandoned Underground Mines

Contact:

Tom Lefchik
Ohio Division Office
614-280-6845
thomas.lefchik@fhwa.dot.gov
 
This page last modified on 04/23/08
  
Subsurface Investigation | Geotechnical Hazards | Ground Improvement | Earth Retaining Structures | Earth and Rock Works | Structural Foundations
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