Dam / Reservoir IRM, Deep Ocean Search & Recovery, Engineering, Inland / Infrastructure Diving, Offshore Oil & Gas IRM, Offshore Wind Farm Support, Seabed Survey, Ship Repair & Maintenance, Submarine Rescue | Phoenix International Holdings, Inc., a ISO 9001:2015 Management System certified marine services contractor providing worldwide manned and unmanned underwater operations

Dam / Reservoir Inspection, Repair & Maintenance (IRM)

Phoenix Diver working on dam

Dams play a critical role in water management, energy production, and public safety. With tens of thousands in operation across the United States, ensuring their integrity is a matter of national, state, and local importance.

Because much of a dam’s structure is located underwater, proper inspection and maintenance require experienced personnel and specialized equipment. Routine underwater inspections help extend service life, support regulatory compliance, and identify potential issues before they escalate.

Phoenix provides comprehensive underwater services for dam infrastructure. Whether your project calls for certified diving professionals, an eyeball Remotely Operated Vehicle (ROV), or our advanced Atmospheric Diving System (ADS), our team has the expertise and technology to deliver safe, accurate, and efficient inspection, repair, and maintenance (IRM) solutions.

Services performed by divers/ADS pilots include:

Phoenix Atmospheric Diving System

Construction, Maintenance, & Repair:

  • Debris and Sediment Removal
  • Cofferdam Installation
  • HP Water Blast Cleaning
  • Gate Slot Re-work
  • Underwater Welding
  • Scour Protection and Repair
  • Concrete Placement
  • Trash Rack Cleaning and Repair

Inspections:

  • Nondestructive Testing (NDT)
  • Mechanical and Structural
  • Scour Assessment
  • Inlet / Outlet Works, Penstock & Tunnel
  • Coating & Corrosion
  • Weld
  • Leak Detection

ROV Support:

In the event your underwater inspection requires both ROVs and divers, Phoenix can assist with efficient and cost-effective options from our pool of ROVs or any of our certified subcontractors.

Certifications:
  • American Concrete Institute’s (ACI’s) criteria for inspection of concrete structures at dams
  • American Society of Nondestructive Testing (ASNT) Level II Inspectors
  • ASNT Level III Examiner for the development of new inspection procedures
  • American Bureau of Shipping (ABS) & Det Norske Veritas (DNV) certifications for underwater inspection and survey of ships, structures and platforms
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Phoenix personnel and our Atmospheric Diving System are featured in this fantastic video produced by Pacific Gas and Electric Company (PG&E) highlighting repair efforts at the Spaulding 1 Powerhouse dam.