Dam Breach and Closure

ONE has experience in providing site restoration efforts thatinclude dam closure and dam breaching services to our clients. Members of the ONE team are trained to address the environmental issues that apply to the cessation of dams and are able to facilitate closure by providing plans, regulatory notifications, engineering designs, permitting packages, and overall project management.

As an example of our work, ONE is currently overseeing the closure of an industrial facility dam classified as Class C (high hazard potential) within the North Carolina Dam Safety Section – Dam Inventory list. Our dam closure services include the following:

Consulting Services:

• Emergency Action Plan (EAP)
  • Coal Ash Management Act of 2014
• Dam Closure Plan
• Sedimentation Investigation
• Lake Drainage Construction Plan
  • Drain line investigation and retrofit
  • Dissipation pad design/construction
• Biological Species Removal and Relocation Plan
  • Electrofishing
  • Lake seining
  • Biological species transport
• Permitting Data Package Submittals
  • Pre-Construction Notification (PCN)
  • Erosion and Sediment Control (E&SC)
  • Nationwide Permit (NWP)
  • U.S. Army Corps of Engineers (USACE)

Field Services:

• Site Investigation and Characterization
• Drainage and Flow Monitoring
• Contractor Oversight
• Structure Demolition