Abandoned Coal Mine Reclamation
US Department of the Interior, Office of Surface Mining Reclamation and Enforcement
Washington, California, Colorado, and Illinois
Under an on-call contract with the Office of Surface Mining, Hart Crowser has closed or reclaimed dozens of abandoned coal mines. Abandoned mine issues have included steep or vertical shafts, acid mine drainage, drainage tunnels, and subsidence under roads and structures. The work also involves geophysical studies. Hart Crowser has frequently responded to OSMRE in emergency situations when immediate action has been necessary for public safety.