Ohio Department of Natural Resources
Belmont County, Ohio
Burgess & Niple was retained by ODNR to prepare plans and specifications for drainage correction from abandoned underground coal mines. Drainage from buried abandoned mine openings and seepage zones from coal outcrops were contributing to the instability of hillsides adjacent to a county road. Landslides along the face of the hillside had previously blocked the road. Additionally, mine drainage was entering residential basements, causing damage and inconvenience to area homeowners.
A site reconnaissance was conducted to locate buried mine openings. Test borings were drilled to locate mine shafts, and observation wells were installed to determine the hydraulic head in the abandoned mine. Plans and specifications were prepared using aerial photography data.
The design approach to remedy the problem involved an initial mine dewatering method using siphon drains. The final solution involved constructing permanent mine drains into the partially dewatered mine shafts, allowing drainage to flow into newly constructed rock drainage channels.